Medication Safety Flashcards
7 cards from real PSA practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Medication Safety flashcards as text
Before initiating amiodarone therapy, which baseline investigations are most essential?
Answer: Thyroid function tests, liver function tests, and chest X-ray
Amiodarone is iodine-rich and can cause thyroid dysfunction, hepatotoxicity, and pulmonary toxicity, so TFTs, LFTs, and CXR are mandatory at baseline.
A patient on lithium presents with coarse tremor, vomiting, diarrhea, and confusion. What is the most likely cause?
Answer: Lithium toxicity
Coarse tremor, GI upset, and neurotoxicity are hallmarks of lithium toxicity requiring urgent assessment and management.
A patient on long-term methotrexate for rheumatoid arthritis requires regular monitoring. Which combination of tests is most important?
Answer: Full blood count and liver function tests at regular intervals
Methotrexate causes bone marrow suppression and hepatotoxicity, making regular FBC and LFTs essential for safe long-term use.
A patient is being initiated on clozapine for treatment-resistant schizophrenia. Which monitoring is mandatory due to a life-threatening adverse effect?
Answer: Regular white blood cell count to detect agranulocytosis
Clozapine carries a mandatory WBC and neutrophil monitoring program because it can cause potentially fatal agranulocytosis in 1-2% of patients.
A patient on ramipril for hypertension develops a persistent dry cough. What is the most appropriate next step?
Answer: Switch to an angiotensin receptor blocker such as losartan
ACE inhibitor-induced cough is a class effect caused by bradykinin accumulation; switching to an ARB eliminates the cough while maintaining antihypertensive efficacy.
Stevens-Johnson syndrome is a severe mucocutaneous adverse drug reaction most classically associated with which medication?
Answer: Carbamazepine
Carbamazepine and other aromatic anticonvulsants, along with allopurinol and sulfonamides, are strongly associated with Stevens-Johnson syndrome and toxic epidermal necrolysis.
A patient receiving gentamicin for sepsis should be monitored primarily for which two toxicities?
Answer: Nephrotoxicity and ototoxicity via serum creatinine and drug levels
Aminoglycosides like gentamicin are dose-dependently nephrotoxic and ototoxic; serum creatinine and trough/peak drug levels must be monitored regularly.