Pharmacology

Question 1

Some guy on ACEI and levothyroxine presents with confusion, lack of appetite, fatigue. Low
sodium and low TSH. What’s the cause?
1. ACEi
2. Indapamide
3. Oxybutynin
4. Allopurinol

Answer 1

Thiazide diuretic

Question 2

On warfarin, takes St John wort and INR is low, why?

Answer 2

St john wart is a CYP inducer, increasing metabolism of warfarin and decreasing its efficacy.

Question 3

Person taking ACEi, metoprolol, bendrofluazide, aspirin, spironolactone, has chronic renal
failure. What would regular blood tests most likely help in preventing?

Answer 3

1. Hyperkalemia
2. Hypotension
3. Agranulocytosis
4. Acute renal failure

Question 4

Woman with previous gestational diabetes coming in with several episodes of hypoglycemia.
High insulin levels, low C peptide. Diagnosis?

Answer 4

exogenous insulin use

Question 5

Dude with anaphylaxis. What do you give him?
1. 0.5 ml 1:1000 IM
2. 0.5 ml 1:1000 IV
3. 0.1 ml 1:1000 IM
4. 1ml 1:10,000 IM
5. 1ml 1:1000 IV

Answer 5

0.5 ml 1:1000 IM