Pharmacology Practice

20 learning units • 10 questions per unit • 200 explained questions

Module 04 — Adverse Reactions, Interactions & Safe Prescribing

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Question 01 • Single best answer

Excessive anticoagulation after a dose increase most closely illustrates what reaction?

A. An unavoidable IgE allergy B. A formulation placebo effect C. Predictable dose-related toxicity D. Proof of infection

Question 02 • Single best answer

Which allergy record is most useful?

A. The phrase all medicines unsafe B. Only the tablet color C. Only the pharmacy address D. Drug, reaction, severity and timing

Question 03 • Single best answer

An enzyme inducer is added to an active drug cleared by that enzyme. What may occur?

A. Reduced drug exposure B. Obligatory complete renal failure C. Permanent receptor blockade D. Guaranteed increased drug concentration

Question 04 • Single best answer

Why can antacids reduce absorption of some antibiotics?

A. Increased receptor affinity B. Destruction of kidney glomeruli C. Universal inhibition of bacterial enzymes in the gut D. Formation of poorly absorbed metal-drug complexes

Question 05 • Single best answer

Which writing convention reduces decimal-point medication errors?

A. Use 5.0 mg instead of 5 mg B. Omit the unit C. Use 0.5 mg rather than .5 mg D. Use ambiguous abbreviations

Question 06 • Single best answer

Why may a normal serum creatinine mislead in a frail older adult?

A. Low muscle mass may mask impaired filtration B. Age makes all drugs unabsorbed C. Creatinine directly measures receptor sensitivity D. Renal function never changes with age

Question 07 • Single best answer

What must be considered when interpreting a therapeutic drug concentration?

A. Package color only B. Drug advertising frequency C. Sampling time relative to dosing D. Tablet shape alone

Question 08 • Single best answer

Which is the best first step in rational prescribing?

A. Define the clinical problem and therapeutic objective B. Choose the newest brand C. Copy a relative's prescription D. Increase all existing doses

Question 09 • Single best answer

What should be included during medication reconciliation?

A. Only hospital injections B. Herbal and over-the-counter products as well as prescriptions C. Only drugs started today D. Only medicines with known allergies

Question 10 • Single best answer

Must a clinician prove a serious suspected adverse reaction before reporting it?

A. Yes; only a randomized trial permits reporting B. Yes; rechallenge is mandatory C. No; a well-documented suspicion can be reported D. No report is ever useful