Certified Hemodialysis Technologist/Technician Exam Medications and Pharmacology in Dialysis 3

Question 1

Which medication is commonly used to treat hypotension during hemodialysis?

Accepted Answer

Midodrine

Answer

Furosemide

Answer

Captopril

Answer

Metoprolol

Question 2

Why should antihypertensive medications ideally be withheld on the morning of hemodialysis?

Accepted Answer

They may cause excessive hypotension during fluid removal

Answer

They interfere with dialysis membrane function

Answer

They are dialyzed out and lose effectiveness

Answer

They increase clotting risk during treatment

Question 3

Kayexalate (sodium polystyrene sulfonate) is used in dialysis patients to manage which condition?

Accepted Answer

Hyperkalemia

Answer

Hyperphosphatemia

Answer

Metabolic acidosis

Answer

Hypercalcemia

Question 4

Which antibiotic class should be used with caution in dialysis patients due to risk of accumulation and ototoxicity?

Accepted Answer

Aminoglycosides

Answer

Penicillins

Answer

Macrolides

Answer

Cephalosporins

Question 5

What is the mechanism of action of sevelamer (Renvela) as a phosphate binder?

Accepted Answer

Non-calcium, non-metal polymer that binds phosphate in the intestine

Answer

Binds phosphate through calcium exchange in the GI tract

Answer

Chelates phosphate in the blood

Answer

Increases renal phosphate excretion

Question 6

Patients on long-term dialysis are often prescribed active vitamin D analogs such as paricalcitol primarily to:

Accepted Answer

Suppress elevated PTH and prevent renal osteodystrophy

Answer

Treat anemia by stimulating erythropoiesis

Answer

Lower serum phosphorus levels

Answer

Improve dialysis adequacy