PSB-PN Pharmacology & Medication Administration 3

Question 1

A practical nurse is about to administer insulin. Which type of insulin appears cloudy and requires mixing by gently rolling the vial?

Accepted Answer

NPH insulin (intermediate-acting)

Answer

NPH (isophane) insulin is an intermediate-acting suspension that appears cloudy and must be gently rolled to resuspend the particles before drawing up the dose.

Question 2

A patient taking a monoamine oxidase inhibitor (MAOI) antidepressant asks if they can eat aged cheese. The practical nurse explains they must avoid it because it can cause:

Accepted Answer

A severe hypertensive crisis

Answer

Aged cheese contains tyramine; MAOIs block its breakdown, leading to a dangerous surge in blood pressure known as a hypertensive crisis.

Question 3

The practical nurse is administering eye drops to a patient. After instilling the drops, the patient should be instructed to:

Accepted Answer

Apply gentle pressure to the inner corner of the eye (nasolacrimal duct)

Answer

Applying pressure to the nasolacrimal duct for 1–2 minutes reduces systemic absorption and keeps the medication in the eye longer for better local effect.

Question 4

A patient is prescribed metformin for type 2 diabetes. The practical nurse should notify the RN if the patient is scheduled for:

Accepted Answer

An iodine contrast dye procedure (CT scan with contrast)

Answer

Iodine contrast dye combined with metformin increases the risk of contrast-induced nephropathy and lactic acidosis; metformin is typically held before and after such procedures.

Question 5

Which lab value is MOST important to monitor in a patient who is receiving long-term furosemide (Lasix) therapy?

Accepted Answer

Serum potassium

Answer

Furosemide is a loop diuretic that causes significant potassium excretion in the urine, making hypokalemia the primary electrolyte concern with ongoing use.

PSB-PN Exam Practice Test

PSB-PN Exam Practice Test

PSB-PN Pharmacology & Medication Administration 3