Free Full Mock Test Part 2

✅ Correct Answer: 25 ml

💡 Rationale: Using the standard nursing formula (What you want / What you have) x Volume: (150 mg / 30 mg) x 5 ml = 5 x 5 ml = 25 ml.

✅ Correct Answer: 8 hours

💡 Rationale: To calculate the total infusion time, divide the total volume by the hourly rate. 1000 ml / 125 ml/hr = 8 hours.

✅ Correct Answer: 5,200 units

💡 Rationale: Multiply the prescribed units per kilogram by the patient's total body weight: 80 units/kg x 65 kg = 5,200 units.

✅ Correct Answer: + 400 ml

💡 Rationale: Total Input = 500 ml + 600 ml = 1100 ml. Total Output = 400 ml + 100 ml + 200 ml = 700 ml. Net Balance = Input (1100) - Output (700) = +400 ml.

✅ Correct Answer: 48 hours after all symptoms (diarrhea and vomiting) have completely resolved

💡 Rationale: Public Health England (PHE) and standard NHS trust policies strictly mandate that staff affected by Norovirus (or any infectious gastroenteritis) must be excluded from work until they have been completely free of symptoms for 48 hours to prevent transmission.

✅ Correct Answer: Admission for assessment; up to 28 days

💡 Rationale: Section 2 of the Mental Health Act 1983 allows for a patient to be detained in a hospital for up to 28 days specifically for the purpose of mental health assessment (or assessment followed by medical treatment).

✅ Correct Answer: To identify and support individuals who are vulnerable to being drawn into terrorism or extremism

💡 Rationale: The Prevent duty is part of the UK's counter-terrorism strategy (CONTEST). Healthcare workers have a legal duty to recognize and safeguard vulnerable individuals who may be at risk of radicalization into terrorism or extremist ideologies.

✅ Correct Answer: A suspected air leak somewhere in the system or from the patient's lung

💡 Rationale: Occasional bubbling is expected when the patient coughs or exhales (clearing the pneumothorax). However, continuous bubbling in the water-seal chamber indicates a persistent air leak either from the patient's pleural space or a loose connection in the tubing system.

✅ Correct Answer: They do not require routine blood monitoring of coagulation levels (INR)

💡 Rationale: DOACs (like Apixaban, Rivaroxaban) have predictable pharmacokinetics and do not require the frequent, routine INR blood monitoring and dose adjustments that Warfarin demands, improving patient convenience and compliance.

✅ Correct Answer: Calcium Alginate dressings

💡 Rationale: Calcium alginates are highly absorbent dressings derived from seaweed. They are ideal for heavily exuding wounds because they absorb fluid and form a soft gel, protecting the wound bed and facilitating autolytic debridement.

✅ Correct Answer: Autonomic Dysreflexia; sit the patient upright immediately and assess for a noxious stimulus (e.g., a blocked catheter)

💡 Rationale: Autonomic dysreflexia is a medical emergency in patients with spinal injuries above T6, triggered by an unperceived noxious stimulus below the injury (usually a full bladder/bowel). Sitting them up utilizes orthostatic pressure to lower blood pressure while the cause is found.

✅ Correct Answer: Hyoscine butylbromide (Buscopan) or Glycopyrronium

💡 Rationale: Antimuscarinic drugs like Hyoscine butylbromide or Glycopyrronium bromide are used in palliative care to reduce the production of respiratory secretions, thereby alleviating the symptom commonly known as the 'death rattle'.

✅ Correct Answer: Only when a patient has been formally assessed to lack mental capacity for this decision, and it is deemed in their best interests following an MDT meeting and documentation

💡 Rationale: Covert administration is a major restriction of rights. It is only lawful under the Mental Capacity Act 2005 if the patient lacks capacity regarding their medication, and a formal 'best interests' decision is made and documented by the healthcare team and family/advocates.

✅ Correct Answer: Irregularly irregular

💡 Rationale: An 'irregularly irregular' pulse is the hallmark clinical sign of Atrial Fibrillation (AF). This means there is no underlying rhythm or pattern to the heartbeats, differentiating it from a 'regularly irregular' pulse (like ectopic beats).

✅ Correct Answer: Meningococcal septicaemia (Meningitis)

💡 Rationale: A non-blanching purpuric or petechial rash (one that does not fade when pressed with a glass), combined with fever and neck stiffness, is a classic red-flag indicator of Meningococcal septicaemia, a rapidly fatal medical emergency.

✅ Correct Answer: Diabetic Ketoacidosis (DKA)

💡 Rationale: DKA is characterized by absolute insulin deficiency leading to high blood glucose, ketosis, and metabolic acidosis. The 'pear drop' breath is caused by exhaled ketones, and Kussmaul breathing is the body's compensatory mechanism to blow off carbon dioxide and reduce acidosis.

✅ Correct Answer: Having an appropriate professional indemnity arrangement in place

💡 Rationale: It is a statutory requirement under the NMC framework that all registered nurses and midwives must ensure they have an appropriate professional indemnity arrangement in place to cover their practice before they can register or renew.

✅ Correct Answer: Setting up the interview (privacy, seating, time)

💡 Rationale: The SPIKES model is an evidence-based framework for breaking bad news. S = Setting up the interview, P = Assessing patient's Perception, I = Obtaining Invitation, K = Giving Knowledge, E = Addressing Emotions, S = Strategy/Summary.

✅ Correct Answer: Sign In, Time Out, Sign Out

💡 Rationale: The WHO Surgical Safety Checklist is divided into three critical pausing points: 'Sign In' (before anesthesia induction), 'Time Out' (before skin incision), and 'Sign Out' (before the patient leaves the operating room).

✅ Correct Answer: Liquid, watery, or porridge-like output

💡 Rationale: An ileostomy is formed from the small intestine (ileum). Because the effluent bypasses the large intestine (colon), where the majority of water absorption usually occurs, the output will continuously be liquid, watery, or porridge-like.

✅ Correct Answer: Refeeding Syndrome

💡 Rationale: Refeeding syndrome occurs when nutrition is reintroduced too quickly to a starved patient. The sudden shift from fat to carbohydrate metabolism causes massive intracellular shifts of electrolytes (especially phosphate, potassium, and magnesium), leading to cardiovascular collapse.

✅ Correct Answer: Stop the procedure immediately, as valid consent can be withdrawn by a competent patient at any time

💡 Rationale: Consent is not a one-time event. Under UK law, a patient with capacity has the absolute right to change their mind and withdraw consent at any time, even after a consent form is signed or a procedure has begun.

✅ Correct Answer: Neuropathic agents (e.g., Amitriptyline, Pregabalin, or Gabapentin)

💡 Rationale: Neuropathic pain (nerve pain) does not respond well to standard analgesics or opioids. NICE guidelines recommend specific neuropathic agents, such as certain anticonvulsants (Pregabalin/Gabapentin) or tricyclic antidepressants (Amitriptyline), to alter nerve signaling.

✅ Correct Answer: No more than 60 minutes prior to the start of the transfusion

💡 Rationale: To ensure a safe baseline for comparison in case of a transfusion reaction, complete vital signs (Temp, HR, BP, RR, SpO2) must be recorded no more than 60 minutes before the blood transfusion actually begins.

✅ Correct Answer: Measure from the center of the patient's mouth (incisors) to the angle of the lower jaw

💡 Rationale: An incorrectly sized Guedel airway can push the tongue further back or cause vocal cord trauma. The correct measurement is from the center of the mouth (or incisors) to the angle of the mandible (jawbone).

✅ Correct Answer: An impartial, trained clinical chaperone, regardless of the gender of the patient or the examining clinician

💡 Rationale: National guidelines mandate that all patients (regardless of gender) must be offered an impartial, trained clinical chaperone (usually a nurse or healthcare assistant) during any intimate examination to protect both the patient and the professional.

✅ Correct Answer: Obtaining blood cultures

💡 Rationale: Drawing blood cultures *before* giving antibiotics is a critical component of the Sepsis Six pathway. Antibiotics can sterilize the blood sample within minutes, making it impossible to identify the specific bacteria and tailor future targeted therapy.

✅ Correct Answer: Coarse hand tremor, vomiting, diarrhea, ataxia (unsteady gait), and confusion

💡 Rationale: Lithium toxicity is a medical emergency. While a *fine* tremor is a common normal side effect, a *coarse* tremor, combined with severe GI disturbances (vomiting/diarrhea) and neurological signs (ataxia, confusion), indicates dangerous toxicity requiring immediate blood level checks.

✅ Correct Answer: Staff must use the minimum necessary force, for the shortest possible time, to prevent harm

💡 Rationale: Under UK law and mental health guidelines, restrictive interventions like physical restraint must only be used as a last resort. It must be reasonable, proportionate, and involve the minimum force necessary for the shortest possible duration to ensure safety.

✅ Correct Answer: Lactulose

💡 Rationale: In hepatic encephalopathy, the failing liver cannot detoxify ammonia. Oral Lactulose is given to alter the pH of the colon, trapping ammonia in the gut and exerting an osmotic laxative effect to excrete the ammonia via frequent bowel movements.

✅ Correct Answer: 2 tablets

💡 Rationale: First, convert milligrams (mg) to micrograms (mcg). 1 mg = 1000 mcg, so 0.5 mg = 500 mcg. Then use the formula: Dose required / Dose available = 500 mcg / 250 mcg = 2 tablets.

✅ Correct Answer: 21 drops/min

💡 Rationale: Formula: (Total volume in ml x Drip factor) / Total time in minutes. (500 x 15) / (6 x 60) = 7500 / 360 = 20.83. Rounded to the nearest whole number, this is 21 drops/min.

✅ Correct Answer: 850 ml

💡 Rationale: Total allowance = 1500 ml. Fluid consumed = (3 x 150 ml) + 200 ml = 450 ml + 200 ml = 650 ml. Remaining allowance = 1500 ml - 650 ml = 850 ml.

✅ Correct Answer: 30 ml

💡 Rationale: Step 1: Calculate total dose required (50 kg x 15 mg/kg = 750 mg). Step 2: Use the formula (What you want / What you have) x Volume = (750 mg / 250 mg) x 10 ml = 3 x 10 ml = 30 ml.

✅ Correct Answer: Group O Negative

💡 Rationale: Group O Negative blood lacks A, B, and Rh antigens on the red blood cells, making it the universal donor type. It can be safely given to patients of any blood group in a critical emergency before cross-matching is complete.

✅ Correct Answer: 27%

💡 Rationale: According to the Rule of Nines in adults: The entire right arm is 9%. The entire anterior trunk (chest and abdomen) is 18%. Total = 9% + 18% = 27%.

✅ Correct Answer: Renal colic (kidney stones)

💡 Rationale: Sudden, severe, unilateral loin-to-groin pain, accompanied by restlessness (patients often cannot stay still) and nausea, is the classic presentation of renal colic, caused by a stone passing through the ureter.

✅ Correct Answer: Up to 6 months

💡 Rationale: Section 3 is an admission for formal treatment. The initial detention period lasts for up to 6 months. It can then be renewed for a further 6 months, and subsequently for 12-month periods.

✅ Correct Answer: Troponin (I or T)

💡 Rationale: Troponins (T and I) are proteins released into the bloodstream when the heart muscle is damaged. They are the gold-standard biomarker for diagnosing a Myocardial Infarction. BNP is for heart failure, D-dimer for blood clots, and CRP for inflammation.

✅ Correct Answer: Subarachnoid haemorrhage (SAH)

💡 Rationale: A 'thunderclap' headache—a severe headache that reaches maximum intensity within a minute—is the classic, red-flag symptom of a subarachnoid haemorrhage, usually caused by a ruptured cerebral aneurysm.

✅ Correct Answer: Intravenous Calcium Gluconate (10%)

💡 Rationale: While Insulin/Dextrose is used to drive potassium back into the cells, the immediate, life-saving first step is administering IV Calcium Gluconate (or Calcium Chloride). This stabilizes the myocardial cell membrane and prevents fatal ventricular arrhythmias.

✅ Correct Answer: A life-threatening medical emergency where airways are so critically narrowed that no air is moving

💡 Rationale: A 'silent chest' during an asthma exacerbation is an ominous sign. It means bronchoconstriction is so severe that insufficient air is flowing through the lungs to even create a wheeze. This is a sign of life-threatening asthma requiring immediate escalation.

✅ Correct Answer: When the contents reach the manufacturer's marked fill line, which is typically 2/3 to 3/4 full

💡 Rationale: Health and Safety Executive (HSE) guidelines mandate that sharps bins must never be overfilled. They must be sealed and replaced when they reach the clearly marked fill line (usually about 3/4 full) to prevent sharps from protruding and causing injury.

✅ Correct Answer: To prevent severe tissue necrosis and ensure the medication continues to be effectively absorbed

💡 Rationale: Site reactions (erythema, induration, leaking) indicate localized tissue irritation or inflammation. If the site is compromised, the palliative medications will not be absorbed into the bloodstream, leading to breakthrough pain or symptom crisis, and possible tissue damage.

✅ Correct Answer: Ensure the patient is kept in a safe, private clinical area away from the partner and contact the safeguarding lead/police

💡 Rationale: Immediate safety is the paramount concern in domestic abuse disclosures. You must separate the patient from the perpetrator, ensure a safe clinical environment, and urgently escalate to safeguarding professionals and the police if there is immediate risk.

✅ Correct Answer: Melaena; indicating an upper gastrointestinal bleed

💡 Rationale: Melaena refers to black, tarry, offensive-smelling faeces. It is a classic sign of an upper gastrointestinal haemorrhage (e.g., bleeding stomach ulcer). The blood turns black as it is digested and altered by stomach acids during transit.

✅ Correct Answer: Dual-Energy X-ray Absorptiometry (DEXA) scan

💡 Rationale: A DEXA (or DXA) scan is a specialized, low-dose x-ray that measures bone mineral density. It provides a 'T-score', which is the definitive diagnostic tool used by the NHS to diagnose osteopenia and osteoporosis.

✅ Correct Answer: Bradykinesia (slowness of movement), resting tremor, and muscle rigidity

💡 Rationale: The hallmark clinical triad of Parkinson's disease consists of bradykinesia (abnormal slowness of movement), a 'pill-rolling' resting tremor, and cogwheel or lead-pipe muscle rigidity.

✅ Correct Answer: Recording accurate daily body weights using the same scales

💡 Rationale: While fluid balance charts are useful, daily weights are the most accurate and reliable non-invasive method for monitoring systemic fluid status, retention (worsening ascites), or fluid loss (response to diuretics) in a clinical setting.

✅ Correct Answer: To maintain a clear airway and allow vomit or secretions to drain, preventing aspiration

💡 Rationale: In an unconscious patient lying on their back, the tongue can fall back and block the airway, and there is a high risk of aspirating stomach contents if they vomit. The recovery position prevents tongue obstruction and allows fluids to drain safely from the mouth.

✅ Correct Answer: Hypocalcaemia

💡 Rationale: Trousseau's sign (carpopedal spasm induced by blood pressure cuff inflation) is a highly specific clinical indicator of latent tetany caused by hypocalcaemia (critically low serum calcium levels).

✅ Correct Answer: To create positive end-expiratory pressure (PEEP), keeping small airways open longer and reducing trapped air

💡 Rationale: In COPD, small airways collapse prematurely during exhalation, trapping air. Pursed-lip breathing creates back-pressure (PEEP) in the airways, splinting them open, which prolongs exhalation and allows trapped carbon dioxide to escape.

✅ Correct Answer: To prevent the development of a post-dural puncture headache (spinal headache)

💡 Rationale: Lying flat after a spinal block helps minimize the leakage of cerebrospinal fluid (CSF) from the dural puncture site. Excessive CSF leakage reduces pressure around the brain, leading to a severe, debilitating post-dural puncture headache when sitting upright.

✅ Correct Answer: When performing Aerosol Generating Procedures (AGPs) on a patient with a suspected or known airborne infectious disease (e.g., Tuberculosis or COVID-19)

💡 Rationale: FFP3 respirators provide a high level of filtration against airborne particles. They are mandated during Aerosol Generating Procedures (like intubation, CPAP/BiPAP, high-flow nasal oxygen) on infectious patients, as these procedures create micro-droplets that bypass standard surgical masks.

✅ Correct Answer: Biological debridement (Larval therapy)

💡 Rationale: The use of sterile maggots to clear a wound is known as biological debridement. The larvae selectively secrete enzymes that break down and ingest dead (necrotic) tissue and bacteria, whilst leaving healthy tissue intact.

✅ Correct Answer: When a patient lacks capacity to make a decision about serious medical treatment or a change of accommodation, and has no family or friends appropriate to consult

💡 Rationale: An IMCA is a statutory safeguard. They must be appointed for 'unbefriended' individuals who lack capacity when major decisions are being made regarding serious medical treatment or long-term accommodation moves, to ensure their rights and best interests are protected.

✅ Correct Answer: Make an urgent two-week wait referral to gynaecology for suspected endometrial cancer

💡 Rationale: Any unexplained postmenopausal vaginal bleeding is a significant red-flag symptom for endometrial (uterine) cancer. Under UK guidelines, it mandates an urgent referral via the two-week wait suspected cancer pathway for immediate investigation.

✅ Correct Answer: Cushing's syndrome

💡 Rationale: Cushing's syndrome results from prolonged exposure to high levels of glucocorticoids (like cortisol or prescribed steroids). The classic signs are fat redistribution (moon face, buffalo hump, central obesity), skin thinning, and purple striae.

✅ Correct Answer: Acute Appendicitis

💡 Rationale: The classic migratory pain pattern of acute appendicitis begins as dull, visceral periumbilical pain before localizing as sharp, somatic pain in the right iliac fossa (over McBurney's point) as the inflamed appendix irritates the local peritoneum.

✅ Correct Answer: Intravenous 0.9% Sodium Chloride or Hartmann's solution (Crystalloids) given rapidly in boluses

💡 Rationale: NICE guidelines for intravenous fluid therapy recommend crystalloids containing sodium in the range 130-154 mmol/l (like 0.9% Saline or Hartmann's) as the first-line resuscitation fluid, typically given as an immediate 500 ml bolus to rapidly expand intravascular volume.

✅ Correct Answer: 7.5 ml

💡 Rationale: Use the formula (What you want / What you have) x Volume: (15 mg / 10 mg) x 5 ml = 1.5 x 5 ml = 7.5 ml.

✅ Correct Answer: 0.5 tablet

💡 Rationale: Divide the required dose by the available dose: 1.25 mg / 2.5 mg = 0.5. The patient requires half a tablet.

✅ Correct Answer: 10%

💡 Rationale: First, find the weight lost: 80 kg - 72 kg = 8 kg. To find the percentage, divide the weight lost by the original weight and multiply by 100: (8 / 80) x 100 = 0.1 x 100 = 10%.

✅ Correct Answer: 140 ml

💡 Rationale: Calculate daily usage: 10 ml x 2 times a day = 20 ml per day. Multiply by 7 days: 20 ml x 7 = 140 ml.

✅ Correct Answer: Between +2°C and +8°C

💡 Rationale: Public Health England strictly mandates that to maintain the cold chain, vaccines must be stored continuously between +2°C and +8°C. Freezing or excessive heat destroys the vaccine proteins.

✅ Correct Answer: Diagnostic overshadowing

💡 Rationale: Diagnostic overshadowing occurs when a healthcare professional incorrectly attributes a patient's physical or mental health symptoms to their pre-existing learning disability, leading to missed diagnoses and delayed care.

✅ Correct Answer: Within 72 hours

💡 Rationale: While PEP for HIV should ideally be started as soon as possible (preferably within an hour), UK guidelines state it can be initiated up to 72 hours post-exposure. After 72 hours, it is generally considered ineffective.

✅ Correct Answer: Gluten (found in wheat, barley, and rye)

💡 Rationale: Coeliac disease is an autoimmune condition where the immune system reacts to gluten, causing damage to the small intestine lining. A strict, lifelong gluten-free diet (avoiding wheat, barley, and rye) is the only effective treatment.

✅ Correct Answer: A formal Chest X-ray to confirm correct tip placement and exclude a pneumothorax

💡 Rationale: CVC insertion carries the risk of malpositioning the tip (which can cause arrhythmias or erosion) and puncturing the lung (causing a pneumothorax). A chest X-ray is the gold-standard and mandatory requirement to verify safe positioning before use.

✅ Correct Answer: It can trigger a life-threatening adrenal crisis due to suppressed natural cortisol production

💡 Rationale: Long-term exogenous steroids suppress the hypothalamic-pituitary-adrenal (HPA) axis, meaning the body stops producing its own cortisol. Sudden withdrawal leaves the body without essential glucocorticoids, leading to an acute, potentially fatal adrenal crisis (Addisonian crisis).

✅ Correct Answer: Cloudy, turbid fluid with suspended white flecks

💡 Rationale: Normal peritoneal dialysate effluent should be clear or straw-colored. Cloudy or turbid effluent is the hallmark primary sign of peritonitis (infection of the peritoneum), requiring urgent antibiotic therapy.

✅ Correct Answer: Uhthoff's phenomenon

💡 Rationale: Uhthoff's phenomenon is a characteristic of MS where an increase in body temperature (from fever, exercise, or a hot environment) temporarily blocks nerve conduction in demyelinated fibers, causing a transient worsening of neurological symptoms.

✅ Correct Answer: Regular Full Blood Counts (FBC) to monitor for agranulocytosis (severe neutropenia)

💡 Rationale: Clozapine carries a significant risk of agranulocytosis (a dangerous drop in white blood cells, making the patient vulnerable to fatal infections). In the UK, patients must be registered with a central monitoring service and have mandatory, regular blood tests to receive the drug.

✅ Correct Answer: Child Criminal Exploitation (CCE) / 'County Lines'

💡 Rationale: Unexplained wealth (phones/cash) and solitary travel to distant areas are classic red-flag indicators of 'County Lines' drug trafficking networks, where vulnerable children are criminally exploited to transport and sell drugs.

✅ Correct Answer: 10 mg (1/6th of the daily dose)

💡 Rationale: NICE guidelines for palliative pain management state that the standard calculation for a breakthrough dose of a strong opioid is typically 1/6th (one-sixth) of the regular 24-hour background dose.

✅ Correct Answer: A Kennedy Terminal Ulcer (KTU)

💡 Rationale: A Kennedy Terminal Ulcer is an unavoidable skin breakdown that occurs specifically at the end of life as a result of systemic skin failure and multi-organ failure. It typically appears suddenly on the sacrum as a pear or butterfly shape.

✅ Correct Answer: Body Mass Index (BMI), unplanned weight loss, and the effect of acute disease

💡 Rationale: The MUST tool calculates risk based on three core steps: Current BMI status, history of unexplained weight loss in the last 3-6 months, and an acute disease effect score (if the patient is acutely ill and has had or is likely to have no nutritional intake for >5 days).

✅ Correct Answer: Breach confidentiality and inform the police immediately, as violent crimes involving weapons must be reported in the public interest to protect others

💡 Rationale: While confidentiality is paramount, there is a clear legal exception for 'public interest'. Guidelines state that healthcare professionals must inform the police quickly whenever a person presents with a gunshot or knife wound, to protect the public and staff from potential serious harm.

✅ Correct Answer: 1.5 to 2.0 kg

💡 Rationale: In heart failure, a sudden weight gain of 1.5 to 2.0 kg (roughly 3-4 lbs) over a few days is a rapid indicator of fluid retention (worsening heart failure), well before peripheral edema becomes highly visible. It requires early intervention with diuretics.

✅ Correct Answer: Nephrotoxicity (kidney damage) and ototoxicity (hearing/balance damage)

💡 Rationale: Aminoglycosides like Gentamicin are notoriously nephrotoxic and ototoxic. Drug levels (peaks and troughs) and renal function must be strictly monitored to prevent acute kidney injury and irreversible hearing loss or vestibular damage.

✅ Correct Answer: Intermittent claudication

💡 Rationale: Intermittent claudication is the hallmark symptom of Peripheral Arterial Disease (PAD). The narrowed arteries cannot meet the increased oxygen demand of the leg muscles during exercise, causing ischemic pain that resolves rapidly with rest.

✅ Correct Answer: Needle decompression (thoracostomy) on the right side

💡 Rationale: These are the classic signs of a right-sided Tension Pneumothorax. Trapped air causes pressure to build, collapsing the lung and pushing the mediastinum (trachea and heart) to the opposite side, stopping venous return. Needle decompression is required immediately to release the air.

✅ Correct Answer: Section 136

💡 Rationale: Section 136 of the MHA gives police the specific emergency power to remove a person who appears to be suffering from a mental disorder from a public place to a designated place of safety (usually a hospital Section 136 suite) for a mental health assessment.

✅ Correct Answer: Respect the patient's autonomous decision and withhold the blood, exploring alternative bloodless treatments

💡 Rationale: Under UK law, a competent adult has the absolute right to refuse any medical treatment, even if that refusal will result in their death. Administering blood against their capacitated refusal constitutes battery and a gross human rights violation.

✅ Correct Answer: Healing by secondary intention

💡 Rationale: Healing by secondary intention occurs when a wound is left open (due to infection risk, tissue loss, or poor approximation) and heals slowly through the formation of granulation tissue, wound contraction, and eventual epithelialization.

✅ Correct Answer: Nose to the Earlobe, then down to the Xiphisternum (base of sternum)

💡 Rationale: The NEX measurement (Nose-Earlobe-Xiphisternum) provides a reliable estimate of the distance required to ensure the tip of the NG tube enters the stomach, reducing the risk of respiratory misplacement or coiling in the esophagus.

✅ Correct Answer: Severe pre-eclampsia

💡 Rationale: Severe headache, visual disturbances, and epigastric pain (due to liver swelling) in a woman past 20 weeks gestation are major red flags for severe pre-eclampsia. This requires urgent assessment of BP and urine (for protein) to prevent progression to eclampsia (seizures).

✅ Correct Answer: Mottling (Livedo reticularis)

💡 Rationale: Mottling is a common physiological change in the final days or hours of life. As the heart weakens, blood is shunted away from the peripheries to the core vital organs, causing a purple, marbled appearance on the skin of the extremities.

✅ Correct Answer: Destruction of the alveolar walls, leading to abnormally large air spaces and a loss of elastic recoil

💡 Rationale: While chronic bronchitis involves mucus and airway inflammation, emphysema specifically involves the irreversible destruction of the delicate alveolar sacs. This reduces the surface area for gas exchange and causes lungs to lose their elasticity, trapping air.

✅ Correct Answer: Acute angle-closure glaucoma

💡 Rationale: Acute angle-closure glaucoma is an ophthalmic emergency. It occurs when the drainage angle of the eye becomes blocked, causing a rapid, severe rise in intraocular pressure. Symptoms include severe pain, halos, redness, nausea, and a fixed pupil.

✅ Correct Answer: 42 tablets

💡 Rationale: Week 1: 15 mg = 3 tablets/day x 7 days = 21 tablets. Week 2: 10 mg = 2 tablets/day x 7 days = 14 tablets. Week 3: 5 mg = 1 tablet/day x 7 days = 7 tablets. Total = 21 + 14 + 7 = 42 tablets.

✅ Correct Answer: 28 drops/min

💡 Rationale: Formula: (Total volume in ml x Drip factor) / Total time in minutes. (1000 x 20) / (12 x 60) = 20000 / 720 = 27.77. Rounded to the nearest whole number, this is 28 drops/min.

✅ Correct Answer: 4 ml

💡 Rationale: Use the formula: (Dose required / Dose available) x Volume = (2 grams / 5 grams) x 10 ml = 0.4 x 10 ml = 4 ml.

✅ Correct Answer: A valid choice, as a person is not to be treated as unable to make a decision merely because they make an unwise decision

💡 Rationale: Principle 3 of the Mental Capacity Act 2005 explicitly states: 'A person is not to be treated as unable to make a decision merely because he makes an unwise decision.' Competent adults have the right to make choices that healthcare professionals disagree with.

✅ Correct Answer: Do not commence the feed; the reading is too high, indicating potential respiratory or intestinal placement, and an X-ray may be required

💡 Rationale: Safe gastric placement is indicated by a pH of 1.0 to 5.5. A pH of 7.0 or higher is neutral/alkaline and strongly suggests the tube is in the lungs (pleural fluid) or has passed into the small intestine. Feeding must not commence until placement is confirmed, typically via X-ray.

✅ Correct Answer: Administer 1 mg of Glucagon intramuscularly (IM)

💡 Rationale: For an unconscious patient with severe hypoglycaemia who lacks IV access, nothing should be put in the mouth due to the high risk of choking/aspiration. Intramuscular Glucagon (1 mg) is the correct first-line treatment to mobilize liver glycogen stores.

✅ Correct Answer: Flexing the hip past 90 degrees and crossing their legs (adduction)

💡 Rationale: Following a standard posterior approach total hip replacement, the joint is unstable. Flexing the hip past 90 degrees (e.g., sitting in a low chair) and adduction (crossing the legs past the midline) forces the femoral head backwards, risking dislocation.

✅ Correct Answer: The post-ictal state

💡 Rationale: The post-ictal state is the altered state of consciousness following an epileptic seizure. It usually lasts between 5 and 30 minutes, but can last longer. It represents the brain's recovery phase and is characterized by drowsiness, confusion, and sometimes nausea or headache.

✅ Correct Answer: They may rely on a 'hypoxic drive' to breathe; high oxygen can suppress their respiratory drive, leading to fatal carbon dioxide retention (Type 2 respiratory failure)

💡 Rationale: Some chronic COPD patients become desensitized to high CO2 levels and instead rely on low oxygen levels (hypoxia) to stimulate breathing. Giving excessive oxygen removes this stimulus, causing them to hypoventilate, retain more CO2, and potentially fall into a coma.

✅ Correct Answer: Digoxin toxicity

💡 Rationale: Digoxin has a narrow therapeutic index. Visual disturbances (specifically yellow-green halos or blurred vision), profound bradycardia, and gastrointestinal symptoms (nausea, vomiting, anorexia) are classic signs of Digoxin toxicity.

✅ Correct Answer: Arterial leg ulcer

💡 Rationale: These are classic signs of an arterial ulcer, caused by poor blood supply (ischemia). They are typically painful, 'punched-out', pale, and occur on the extremities (toes/outer ankles) with signs of peripheral arterial disease (cold, hairless skin, absent pulses).

✅ Correct Answer: Transfusion-Associated Circulatory Overload (TACO)

💡 Rationale: TACO occurs when the volume or rate of the transfusion overloads the patient's cardiovascular system, leading to pulmonary edema. Signs include dyspnoea, hypertension, bounding pulse, and basal crackles. It is a major risk in the elderly and those with cardiac history.

✅ Correct Answer: Retinal detachment

💡 Rationale: A retinal detachment is a sight-threatening emergency. The classic presentation includes painless flashes of light (photopsia), a sudden shower of floaters, and a visual field defect often described as a shadow or curtain descending over the vision.

✅ Correct Answer: Due to the risk of a biphasic reaction, where anaphylaxis symptoms can recur hours later without further exposure to the allergen

💡 Rationale: Resuscitation Council UK guidelines mandate observation after anaphylaxis due to the risk of a 'biphasic reaction'—a second wave of severe anaphylaxis that can occur up to 72 hours later (most commonly within 6-12 hours) without re-exposure to the trigger.

✅ Correct Answer: Deep Vein Thrombosis (DVT)

💡 Rationale: Unilateral calf swelling, pain/tenderness, warmth, and redness are the cardinal signs of a Deep Vein Thrombosis (a blood clot in the deep veins of the leg), a common and dangerous post-operative complication.

✅ Correct Answer: Lanugo

💡 Rationale: Lanugo is a fine, downy hair that grows on the body of individuals with severe anorexia nervosa. It is the body's physiological attempt to insulate itself and conserve heat due to the profound loss of insulating body fat.

✅ Correct Answer: Less than 0.5 ml/kg/hr for 6 consecutive hours

💡 Rationale: The standard diagnostic criteria for AKI includes oliguria, which is specifically defined as a urine output of less than 0.5 ml/kg/hr lasting for 6 or more consecutive hours.

✅ Correct Answer: You, the registered nurse, as you delegated the task and are responsible for the supervision and standard of care

💡 Rationale: The NMC Code makes it clear that when a registered nurse delegates a task, they remain professionally accountable for the decision to delegate, the level of supervision provided, and the overall outcome of the care.

✅ Correct Answer: The Fraser Guidelines

💡 Rationale: The Fraser Guidelines specifically apply to assessing whether a child under the age of 16 is competent to consent to contraceptive or sexual health advice and treatment without parental knowledge or consent.

✅ Correct Answer: Use a skin marker pen to outline the edge of the erythema (redness) to monitor if the infection is spreading or receding

💡 Rationale: Cellulitis is a spreading bacterial infection of the deep dermis. Outlining the border of the redness with a skin marker on admission is a crucial clinical practice. It allows the team to visually track whether the IV antibiotics are working (redness recedes) or if the infection is worsening.

✅ Correct Answer: The stoma bag appliance aperture is cut too large, allowing alkaline, enzyme-rich effluent to constantly leak onto the peristomal skin

💡 Rationale: Ileostomy output is continuous, liquid, and highly rich in corrosive digestive enzymes (proteases and lipases). If the hole cut in the baseplate is too large, this effluent sits directly on the skin, rapidly digesting the epidermis and causing severe excoriation.

✅ Correct Answer: Perform vigorous continuous fundal massage to stimulate uterine contraction

💡 Rationale: The most common cause of primary PPH is uterine atony (failure of the uterus to contract). Immediate continuous rubbing/massage of the uterine fundus (the top of the uterus) stimulates the muscle fibers to contract, compressing bleeding vessels.

✅ Correct Answer: Validation Therapy: acknowledging the emotion behind her words and asking her to tell you about her children and what she likes to cook

💡 Rationale: In advanced dementia, Reality Orientation can cause extreme distress, confrontation, and agitation because the patient's brain cannot process the current reality. Validation Therapy focuses on empathy, accepting their reality, and exploring the feelings driving the behavior to calm them.

✅ Correct Answer: Removing the infected IV cannula immediately, as it is the likely source of the systemic infection

💡 Rationale: Source control is a critical step in sepsis management. It means physically removing or draining the primary focus of infection (e.g., an infected catheter, a purulent wound, or an abscess). Without removing the infected cannula, IV antibiotics will fail to clear the continuous seeding of bacteria into the blood.

✅ Correct Answer: Because increased sedation is the most sensitive and earliest indicator of impending opioid-induced respiratory depression, occurring before the respiratory rate actually drops

💡 Rationale: Clinical guidelines emphasize that increasing sedation level usually precedes respiratory depression. Relying solely on respiratory rate is dangerous, as a patient can be profoundly sedated and nearing respiratory arrest while still taking 12 shallow breaths a minute. Sedation scoring provides the earliest warning sign of opioid toxicity.