Certified Medical Assistant (CMA AAMA)PharmacologyEasy
A patient is prescribed warfarin 5 mg PO daily. The pharmacy dispenses 2.5 mg tablets. How many tablets should the medical assistant instruct the patient to take per dose?
- A2.5 tablets
- B1 tablet
- C2 tablets
- D0.5 tablet
Show answer & explanationAnswer & explanation
Correct answer: C. 2 tablets
To calculate the number of tablets, divide the ordered dose by the dose per tablet: 5 mg (ordered) / 2.5 mg (per tablet) = 2 tablets.
Why the other options are wrong
- A. This is incorrect; it seems to be confusing the ordered dose with the number of tablets.
- B. This would be the result if the ordered dose was 2.5 mg.
- D. This would be the result if the ordered dose was 1.25 mg.
Tablet Dosage Calculation
Tablet dosage calculation involves determining the number of tablets required to deliver a prescribed dose, given the strength of each tablet.
- Formula: (Ordered Dose / Dose per Tablet) = Number of Tablets.
- Ensure units are consistent (e.g., mg/mg).
- Always double-check calculations before administering medication.
Memory trick: Divide Desired by Available