Pharmacology Is Where Most Nursing Students Drop Marks
Ask any student who has sat the NMCN CBT and they will say the same thing about pharmacology: it caught them off guard.
Not because they had never studied drugs. They had. But knowing a drug in a textbook is completely different from answering a pharmacology question on a CBT screen with three other plausible options staring back at you and a timer running.
Pharmacology sits inside Paper II of the NMCN professional exam alongside Medical-Surgical Nursing. It covers drug classifications, mechanisms of action, nursing considerations, side effects, contraindications, and — the part most students dread — drug dose calculations. Every sitting of the exam tests it. It does not go away, and it cannot be skipped.
The fastest way to close your pharmacology gap before the CBT is to work through real past questions. Not just read drug lists. Actually answer questions, check your reasoning, and understand why the correct option is correct. That is what builds the kind of recall that holds up under exam pressure.
You can start doing exactly that on FreshNote's NMCN exam preparation portal, which has over 10,000 NMCN questions including an extensive pharmacology bank drawn from multiple exam years.
What NMCN Pharmacology Questions Actually Test
Before looking at sample questions, it helps to understand what the examiners are actually measuring. NMCN pharmacology questions are not testing whether you memorised a drug list. They are testing whether you can function as a safe nurse who understands what she is giving a patient and why.
This means questions fall into a few clear categories:
Drug action and classification — What class does this drug belong to? What is its mechanism of action? These are knowledge-based and reward students who understand drug families, not just individual names.
Nursing considerations — What do you check before giving this drug? What do you monitor after? What do you tell the patient? These questions reflect real clinical responsibility.
Side effects and adverse reactions — What is the most common side effect? What is the dangerous one? What sign should make you withhold the drug and call the doctor?
Contraindications — When should this drug NOT be given? Which patient condition makes this drug unsafe?
Drug calculations — Given this prescription and this stock, how much do you draw up? How many drops per minute? These require arithmetic under pressure.
Knowing which category a question belongs to helps you approach it faster. When you read "a patient on digoxin presents with nausea, blurred vision, and bradycardia" — you already know this is a toxicity/adverse reaction question before you even see the options.
NMCN Pharmacology Past Questions — 2026 Sample Set
These questions reflect the pattern, depth, and wording style of actual NMCN CBT pharmacology questions. Work through them before reading the answers.
Drug Calculations
Question 1
A doctor prescribes 500mg of Ampicillin. Available stock is 250mg per 5ml. How many millilitres should the nurse administer?
A. 5ml
B. 10ml
C. 15ml
D. 20ml
Answer: B — 10ml
Using the formula: (Prescribed dose ÷ Stock dose) × Volume = (500 ÷ 250) × 5 = 10ml. Drug calculation questions in the NMCN CBT always follow this formula structure. Practise it until it is automatic.
Question 2
A patient is to receive 1 litre of normal saline over 8 hours via a drip set delivering 20 drops per ml. What is the correct drip rate in drops per minute?
A. 25 drops/min
B. 42 drops/min
C. 32 drops/min
D. 20 drops/min
Answer: B — 42 drops/min
Formula: (Volume in ml × Drop factor) ÷ Time in minutes = (1000 × 20) ÷ 480 = 41.6, rounded to 42 drops/min. Infusion rate questions appear in most NMCN sittings.
Drug Side Effects and Toxicity
Question 3
A nurse is caring for a patient on gentamicin therapy. Which finding should prompt her to notify the doctor immediately?
A. Mild headache
B. Decreased urine output
C. Slight nausea after meals
D. Fatigue in the afternoon
Answer: B — Decreased urine output
Gentamicin is nephrotoxic. Reduced urine output signals possible acute kidney injury and requires immediate escalation. This is a classic NMCN-style nursing response question — it tests your knowledge of drug toxicity and your judgement about when to act.
Question 4
Which of the following is a life-threatening side effect of streptomycin therapy?
A. Constipation
B. Skin rash
C. Eighth cranial nerve damage
D. Increased salivation
Answer: C — Eighth cranial nerve damage
Streptomycin (an aminoglycoside) causes ototoxicity, damaging the auditory and vestibular branches of the eighth cranial nerve. This can result in permanent hearing loss. Questions on aminoglycoside toxicity appear regularly across NMCN exam years.
Question 5
A patient on oral iron therapy reports that her stools have turned black. What is the appropriate nursing response?
A. Stop the iron immediately and report to the doctor
B. Send a stool sample for occult blood testing
C. Reassure her that this is an expected side effect of iron therapy
D. Reduce the iron dose and monitor closely
Answer: C — Reassure her that this is an expected side effect
Black stools from oral iron is a harmless, expected effect. Distinguishing between expected side effects and dangerous symptoms is a key nursing competency that the NMCN exam tests repeatedly.
Drug Contraindications
Question 6
A patient with bronchial asthma is prescribed a drug for hypertension. Which of the following drugs is contraindicated in this patient?
A. Amlodipine
B. Propranolol
C. Hydralazine
D. Methyldopa
Answer: B — Propranolol
Propranolol is a non-selective beta-blocker that causes bronchoconstriction. It is contraindicated in asthma patients. This type of contraindication question appears in multiple NMCN pharmacology papers — drug + patient condition combinations.
Question 7
Which of the following analgesics should be avoided in a patient with peptic ulcer disease?
A. Paracetamol
B. Morphine
C. Aspirin
D. Codeine
Answer: C — Aspirin
Aspirin irritates the gastric mucosa and inhibits prostaglandin synthesis, worsening peptic ulcer disease. Paracetamol is the safe alternative. NSAID contraindication questions come up every few sittings.
Nursing Considerations and Drug Management
Question 8
Before administering digoxin to a patient, the most important nursing assessment is to:
A. Check the patient's temperature
B. Measure the patient's blood pressure
C. Count the apical pulse for one full minute
D. Assess the patient's urine output
Answer: C — Count the apical pulse for one full minute
Digoxin slows the heart rate and must be withheld if the apical pulse is below 60 beats per minute in adults. This is one of the most frequently tested nursing considerations in the NMCN pharmacology section. Expect it in some form at every sitting.
Question 9
A nurse is preparing to administer insulin to a diabetic patient. Which action is most important before giving the injection?
A. Warm the insulin vial in hot water
B. Check the patient's blood glucose level
C. Ensure the patient has just eaten a full meal
D. Shake the insulin vial vigorously to mix
Answer: B — Check the patient's blood glucose level
Insulin must never be given without checking the current blood glucose. Giving insulin to a patient who is already hypoglycaemic can be fatal. Never shake insulin — roll it gently. Questions on insulin safety and administration appear in almost every NMCN pharmacology paper.
Question 10
A patient on warfarin therapy is due for discharge. Which instruction is most important to include in her discharge education?
A. Avoid excessive sunlight exposure
B. Return immediately if she notices unusual bleeding
C. Take the medication only when she feels her joints are painful
D. She can stop the medication once she feels better
Answer: B — Return immediately if she notices unusual bleeding
Warfarin is an anticoagulant. Unusual bleeding — from gums, urine, stool, or skin bruising — may indicate dangerous over-anticoagulation. Stopping the drug without medical advice is dangerous. Patient education questions on anticoagulants come up consistently.
Question 11
Which of the following drugs requires a skin test before administration?
A. Paracetamol injection
B. Crystalline penicillin
C. Metronidazole infusion
D. Dextrose infusion
Answer: B — Crystalline penicillin
Penicillin can cause severe anaphylaxis. A sensitivity/skin test must be done before first-time administration. This is tested across multiple NMCN sittings — know which drugs require sensitivity testing.
Drug Classifications
Question 12
Metronidazole belongs to which drug class?
A. Aminoglycosides
B. Macrolides
C. Nitroimidazoles
D. Cephalosporins
Answer: C — Nitroimidazoles
Metronidazole is effective against anaerobic bacteria and protozoa. It is widely used in Nigeria for conditions like amoebic dysentery, bacterial vaginosis, and surgical prophylaxis. Drug classification questions test whether you understand drug families rather than just names.
Question 13
A nurse administers oxytocin to a postnatal patient. What is the primary reason for this?
A. To stimulate milk production
B. To prevent postpartum haemorrhage by promoting uterine contraction
C. To relieve postpartum pain
D. To prevent puerperal infection
Answer: B — To prevent postpartum haemorrhage by promoting uterine contraction
Oxytocin is an oxytocic drug. Its uterotonic action is central to the active management of the third stage of labour. Midwifery candidates should expect multiple oxytocic questions per sitting.
The Pharmacology Topics NMCN Keeps Coming Back To
After working through past questions across many exam years, certain drug topics appear so consistently they deserve dedicated attention:
| Drug / Drug Group | Why It Keeps Appearing |
|---|---|
| Digoxin | Apical pulse check, toxicity signs, therapeutic range |
| Insulin | Blood glucose check, types, storage, hypoglycaemia signs |
| Penicillin / Ampicillin | Sensitivity testing, dose calculation, allergy |
| Gentamicin / Streptomycin | Nephrotoxicity, ototoxicity |
| Warfarin / Heparin | Monitoring, bleeding signs, antidote (Vitamin K / Protamine) |
| Oxytocin / Ergometrine | Labour management, PPH prevention |
| Antihypertensives | Beta-blockers in asthma, ACE inhibitors, calcium channel blockers |
| Oral iron | Expected side effects, absorption tips |
| Metronidazole | Classification, uses, alcohol interaction |
| Aspirin/NSAIDs | GI contraindications, antiplatelet effect |
| Paracetamol | Safe analgesic in peptic ulcer, overdose risk |
| Morphine | Respiratory depression, constipation, reversal agent |
If you can answer questions on every drug in this table correctly, you have covered the bulk of what pharmacology contributes to your NMCN score.
Why Pharmacology Calculations Fail Students
Let's be direct about this. A lot of nursing students avoid drug calculation questions during preparation because they make people feel anxious. Then they get to the CBT and freeze when a calculation appears on screen.
The calculation itself is usually not complicated. The formula is almost always one of two:
For solid/liquid doses: (Prescribed ÷ Stock) × Volume
For infusion rates: (Volume × Drop factor) ÷ Time in minutes
The problem is not the maths. The problem is that students have never practised doing it quickly, under pressure, without a calculator. The NMCN CBT does not always provide a calculator. You need to be able to work it out in your head or on scratch paper fast enough that it does not eat into your time for the rest of the paper.
The fix is simple: do at least 10 calculation questions every day in the weeks before your exam. Not just reading through them — solving them yourself before looking at the answer. Your speed will improve faster than you expect.
If you want to understand how pharmacology fits into the bigger CBT picture — including how Paper II is structured and timed — our breakdown of the NMCN CBT exam format covers exactly that.
How to Use Past Questions to Actually Learn Pharmacology
There is a wrong way to use past questions and a right way. A lot of students read through a past question, see the answer, nod, and move on. That is not practice. That is passive reading with extra steps.
Here is what actually works:
Answer first, always. Cover the answer and try to select one of the four options yourself. Even if you are unsure. The act of committing to an answer — right or wrong — is what makes learning stick.
When you get it wrong, find out why. Not just what the right answer is, but why the other options are wrong. In pharmacology, this is especially valuable. Understanding why propranolol is wrong in an asthma patient teaches you the whole beta-blocker class — not just that one question.
Group questions by drug. After working through 30 or 40 questions, sort your wrong answers by drug or drug class. You will quickly see whether your weakness is anticoagulants, antibiotics, cardiovascular drugs, or calculations. That tells you exactly where to focus your reading.
Re-attempt wrong questions two days later. If you get the same question wrong the second time, that drug concept needs deeper reading. If you get it right, you have actually learned it.
A Word on Sample Questions Found Online
You will find NMCN pharmacology questions scattered across Telegram groups, WhatsApp forwards, and random PDFs shared between students. Some of them are genuine. Some are poorly written, factually wrong, or simply made up.
The risk of preparing from unverified sources is not just that the answers may be wrong — it is that you build incorrect knowledge and carry it into the real exam. Getting a question wrong in a practice session is fine. But carrying a wrong understanding of, say, digoxin nursing considerations into Paper II of the actual CBT costs you marks you cannot recover.
FreshNote's pharmacology question bank is drawn from verified past exam papers and structured to match the actual NMCN exam. Each answer comes with an explanation, so you are learning the reasoning behind the correct option — not just memorising a letter.
Access the full question set through FreshNote's NMCN study hub and start with pharmacology if it is your weak point.
Frequently Asked Questions
How many pharmacology questions appear in the NMCN CBT?
Pharmacology is part of Paper II alongside Medical-Surgical Nursing. While the exact split varies by sitting, pharmacology typically accounts for a significant portion of that paper — enough that weak performance there meaningfully affects your aggregate score.
Are drug calculations always on the NMCN CBT?
Yes, calculation questions appear consistently across sittings. They may be dose calculations, infusion rate questions, or unit conversions. Practising these with and without a calculator is the safest approach.
What formula do I use for NMCN drug calculations?
For tablets and liquids: (Prescribed dose ÷ Stock dose) × Volume. For IV infusion rates: (Volume in ml × Drop factor) ÷ Time in minutes. These two formulas cover most of what appears.
Which drugs are tested most often in NMCN pharmacology?
Based on past exam patterns: digoxin, insulin, penicillin, warfarin, oxytocin, gentamicin, propranolol, metronidazole, and morphine. These appear across multiple exam years in different question formats.
Is pharmacology harder for General Nursing or Midwifery candidates?
The drug content differs slightly. Midwifery candidates see more questions on oxytocics, uterine relaxants, and drugs used in obstetric emergencies. General Nursing candidates see a broader drug range. Both programmes test calculations at a similar difficulty level.
Can I pass the NMCN CBT if I do not understand pharmacology well?
It is harder to do so. Pharmacology forms a chunk of Paper II, and weak performance there drags down your aggregate. The subject is also one of the most practicable — meaning it responds well to targeted question practice and gets easier the more you work through it.
Where can I get reliable NMCN pharmacology past questions with answers?
FreshNote's NMCN preparation hub carries a large pharmacology question bank with detailed answer explanations. You can attempt questions by topic, or take full timed paper mocks that mix pharmacology with Medical-Surgical Nursing the way the real exam does.
Last Word: Pharmacology Rewards the Student Who Practises It
Most nursing subjects reward reading. Pharmacology rewards practice more than almost any other subject in the NMCN exam.
You can read about digoxin for an hour. But the student who has answered 40 digoxin questions — seen the apical pulse scenario, the toxicity scenario, the dose calculation, the patient education scenario — knows digoxin in a completely different way. She does not need to think on exam day. She recognises the question type, sees which option reflects correct nursing action, and moves on.
That level of familiarity does not come from notes. It comes from questions.
Pick your weakest drug topics from the table above. Start there. Aim for 20 to 30 pharmacology questions daily. Be strict about reviewing every wrong answer before moving to the next topic.
Your NMCN pharmacology score is genuinely fixable between now and exam day — but only if you treat past questions as your main study tool, not an afterthought.
Everything you need is on the FreshNote NMCN portal. The sooner you start, the more ground you cover.