OSCE Pharmacology and Medication Administration 2

Question 1

A patient is prescribed warfarin 5mg daily. Which food should the nurse instruct the patient to keep consistent in their diet?

Accepted Answer

Vitamin K-rich foods like spinach

Answer

Vitamin K directly antagonizes warfarin's anticoagulant effect, so consistent intake (not elimination) prevents INR fluctuations.

Question 2

When administering a Z-track injection, the nurse should release the skin how many seconds after injecting the medication?

Accepted Answer

After 10 seconds

Answer

Waiting 10 seconds allows the medication to disperse into the tissue before releasing the skin, preventing leakage.

Question 3

A patient taking metformin is scheduled for a contrast CT scan. What is the priority nursing action?

Accepted Answer

Hold metformin 48 hours before and after the procedure

Answer

Metformin must be held 48 hours before and after contrast dye to prevent lactic acidosis risk from contrast-induced nephropathy.

Question 4

Which ophthalmic medication administration technique is correct?

Accepted Answer

Pull down the lower eyelid and instill drops into the conjunctival sac

Answer

The conjunctival sac (lower eyelid pocket) is the correct site for eye drop instillation to avoid corneal trauma.

Question 5

A nurse is preparing to administer digoxin 0.125mg. Before giving this medication, which assessment is most critical?

Accepted Answer

Apical pulse for one full minute

Answer

Digoxin is held if the apical pulse is below 60 bpm, as it slows conduction and can cause life-threatening bradycardia.

OSCE Practice Test