A healthcare provider prescribes a medication dose of 45 mg intramuscularly. The medication is available in a vial labelled 80 mg per 2 mL. How many millilitres should the nurse draw into the syringe?

Appeared in: NORCET-11 Prelims

Explanation

Option A: 6 mL would deliver 64 mg, which is much higher than the prescribed 45 mg.
Option B: 5 mL would deliver 60 mg, which is higher than the prescribed dose.
Option D: 1mL would deliver only 40 mg, which is less than the prescribed dose.

Clinical Relevance

Nursing practice connection: Knowing Medication dose calculation using stock concentration helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Accurate calculation prevents medication errors and ensures patient safety.
Nurses must double-check all calculations, especially for injectable medications.
What if? If the stock concentration changes, recalculate to avoid underdosing or overdosing.

How to Approach the Question

Concept Tested & Keywords

Q8SX69neO8rUKJq04UkvL1

E6 Nursing Fundamentals Potter Perry 12e Part 3 p. 142-144

Practise the full NORCET-11 Prelims

Attempt every question from this paper in a timed mock, then review the full solution for each one.