46+ PNLE Pharmacology Review Questions Study Guide and Review Materials
Introduction
Do you want to know what makes or breaks most students on the PNLE? It's pharmacology. The topic comes with a truckload of information, but don't let that scare you. Consider this: every clinical scenario is built on medication interactions and patient reactions. Understanding these can swing your score up significantly.
On the PNLE, you'll see around 46 questions about pharmacology. They cover everything from antihypoglycemic agents to the ins and outs of administering chemotherapy. But don't panic. The test doesn't expect you to be a walking, talking pharmacopoeia. It's about recognizing key drugs, understanding their effects, and knowing how they interact.
So, if you're feeling overwhelmed by drug names and dosages, you're not alone. Let's tackle this together so pharmacology becomes your secret weapon.
Key concepts
What to expect on the PNLE
When tackling pharmacology, expect roughly 46 questions, with most being moderately difficult. You'll see a mix of clinical scenarios, application questions, and priority questions.
- Clinical Scenarios: These questions often involve patient management, especially in contexts like drug overdose or missed doses.
- Adverse Effects & Interactions: These questions test your ability to foresee and act on medication side effects or interactions. Especially watch for phenytoin and warfarin interactions, a PNLE favorite.
- Drug Administration Technique: Guideline questions are popular here. Be sure to know IV administration specifics, such as those for phenytoin.
- Trap Answers: The exam may present choices that are safe but not the best option, such as instructing hydration without addressing an electrolyte imbalance directly related to a drug.
Familiarizing yourself with these patterns can boost your confidence and accuracy.
Study tips
- Use VASE Mnemonic: Remember the main drug categories with the mnemonic VASE: Vitamins (for deficiencies), Anti-infectives, Steroids, Endocrine. It helps organize what you study.
- Comparison Tables: Create tables comparing drug classes like beta-blockers versus ACE inhibitors. Write down their mechanism, side effects, and contraindications. This really pays off for cardiovascular questions.
- Practice Question Scenarios: Use practice questions to get familiar with clinical scenarios. Specifically, tackle those involving emergency responses and drug interactions.
- Listen to Pharmacology Podcasts: Find a few good ones on your streaming platform. They simplify the jargon and help reinforce concepts when you're tired of reading.
- Teach Someone Else: Explain drug mechanisms or interactions to a friend or family member. Teaching forces you to clarify your own understanding. If you can explain it simply, you know it.
Common mistakes to avoid
- Assuming All Oral Meds are Safe: "You're given a question about metformin. It seems oral must be the safest, so you say yes to administer. But metformin needs renal function considerations. You might overlook contraindications."
- Mistaking Adverse Effects for Allergies: "A patient reports nausea after taking penicillin. You think 'allergy'. But nausea isn't an allergy—instead, think of GI disturbance, which isn't a stop-use situation."
- Confusing Sound-Alike Drugs: "You see 'sertraline' and think 'sedative,' picking it for anxiety sedation. But sertraline is an antidepressant with different applications—common mix-up."
- Underestimating Time Sensitivity: "The question details a medication that’s critical. You think tomorrow works. But timing matters—what if it's an antibiotic? Delays can mean resistance."
Try a question
A real Pharmacology question from our bank. Give it a shot.
A nurse is caring for a client who develops muscle stiffness and tremors after starting an antipsychotic medication. Which drug can help alleviate these extrapyramidal side effects?
Clients who develop muscle stiffness and tremors after starting an antipsychotic are experiencing extrapyramidal symptoms (EPS), which are common adverse effects of typical (first-generation) and some atypical (second-generation) antipsychotics. EPS includes acute dystonia, parkinsonism (muscle rigidity, tremors, bradykinesia), and akathisia. These symptoms result from dopamine blockade in the nigrostriatal pathway of the brain.
| Option | Analysis |
|---|---|
| Amantadine | Amantadine is an antiparkinsonian agent that increases dopamine release and blocks its reuptake. It is used to treat drug-induced parkinsonism, a type of EPS, by restoring the dopamine-acetylcholine balance in the central nervous system. This helps alleviate muscle stiffness and tremors. Amantadine is recommended in guidelines for managing EPS, especially when anticholinergic drugs are contraindicated or not tolerated. |
| Perphenazine | Perphenazine is a typical antipsychotic, not a treatment for EPS. In fact, it can cause or worsen EPS due to its potent dopamine antagonism. Administering perphenazine would likely exacerbate the client's symptoms. |
| Doxepin | Doxepin is a tricyclic antidepressant. It does not have a therapeutic role in treating EPS and may cause anticholinergic side effects, but it does not address the underlying dopamine imbalance responsible for EPS. |
| Clorazepate | Clorazepate is a benzodiazepine used for anxiety and as an adjunct in seizure disorders. While benzodiazepines may help with agitation, they do not treat the motor symptoms of EPS. |
Key Nursing Concepts and Clinical Reasoning:
- Recognizing EPS is critical for safe antipsychotic use. Early intervention prevents complications such as neuroleptic malignant syndrome.
- The nurse must understand which medications counteract dopamine blockade (amantadine, benztropine, or trihexyphenidyl) and which do not.
- Nurses should monitor for EPS in all clients starting or increasing doses of antipsychotics and advocate for prompt treatment.
Clinical Pearl: Remember that "amantadine aids movement", it is used for Parkinson-like symptoms, including those caused by antipsychotics.
Summary: Amantadine is the correct choice because it directly addresses the pathophysiology of EPS by enhancing dopaminergic activity. The other options either do not treat EPS or may worsen it. This question tests the nurse's ability to apply pharmacological knowledge to clinical scenarios and select the most appropriate intervention based on the client's presentation.
Cambridge University Press. Essential Neuropharmacology, Chapter 5 “Amantadine”. Cambridge University Press, approximately 5.5 years ago.
StatPearls. Extrapyramidal Symptoms. NCBI Bookshelf.
NCBI Bookshelf. Amantadine overview.
Praxis Medical Insights. Management of Extrapyramidal Symptoms. Praxis Medical Insights, updated 2025/2026.
Santa Clara County Mental Health Department. Medication Practice Guidelines.
PubMed. Management of acute extrapyramidal effects induced by antipsychotic drugs. PubMed, 1993.
More Pharmacology questions
128+ questions available. Sign up to practice all of them.
A client receiving long-term fluphenazine therapy develops tremors and muscle rigidity. Which medication is most likely to be prescribed to address these extrapyramidal symptoms?
A 29-year-old client with a history of paranoid schizophrenia is prescribed haloperidol after presenting with hallucinations. The nurse knows this medication is primarily used to manage which condition?
A client is prescribed disulfiram as part of his alcohol dependence treatment. The nurse explains that this medication works based on which principle?
Practice questions
Q: A diabetic patient experiences severe hypoglycemia and is unconscious. Which medication should the nurse prepare to administer immediately to raise the blood sugar level?
Answer: C. Glucagon is administered to rapidly increase blood glucose in cases of severe hypoglycemia. Insulin and metformin lower blood glucose, and dextrose IV is not commonly used outside hospital settings. View more questions
Q: A patient prescribed warfarin is also taking phenytoin. What effect might this drug interaction have on the patient's therapy?
Answer: A. Phenytoin can reduce the effectiveness of warfarin by increasing its metabolism, leading to increased bleeding risk. This interaction requires close INR monitoring. View more questions
Q: When administering IV phenytoin, what is an essential nursing consideration to avoid adverse effects?
Answer: C. Monitoring cardiac rhythm is crucial as phenytoin can cause arrhythmias. It should not be mixed with dextrose, nor given as a rapid IV push or intramuscularly. View more questions
Q: A nurse administers prednisone to a patient. What effect of this medication requires immediate nursing attention?
Answer: A. Prednisone can cause hyperglycemia, necessitating adjustments in diabetic management. Fever might indicate an infection risk, but is not linked to prednisone directly. View more questions
References and further reading
- JNC 8 Guidelines for the Management of Hypertension in Adults guideline
Provides evidence-based recommendations for initiating and managing antihypertensive therapy, essential for understanding medication administration in hypertension. - Hypertension Medication Treatment Protocol guideline
Offers a structured protocol for antihypertensive medication treatment, aiding in the standardization of care for patients with hypertension. - Chapter 10: Analgesics & Musculoskeletal System - Nursing Pharmacology textbook
Details the pharmacology of analgesics, including dosage calculations and administration guidelines, crucial for pain management. - 2.4 Dosage Calculations - Pharmacology for Nurses educational
Provides comprehensive instruction on dosage calculations using standard formulas, essential for safe medication administration. - Principles of Pain Management journal
Discusses the principles of pain management, including opioid dosing and equianalgesic conversions, vital for effective pain control. - Equianalgesic Chart educational
Provides an equianalgesic chart for opioid conversions, assisting in accurate dosage calculations for pain management. - Drug Guides/Dosage Calculations - Nursing - Indianapolis - Ivy Tech Libraries educational
Offers resources on drug guides and dosage calculations, including instructional videos on medication administration techniques.