MACE Dosage Calculation and Measurement 3 — Questions and Answers
Question 1: A medication order is for 750 mcg. The available stock is 0.25 mg per tablet. How many tablets are needed?
- 1 tablet
- 2 tablets
- 3 tablets (Correct answer)
- 4 tablets
Correct answer: 3 tablets
0.25 mg = 250 mcg; 750 mcg ÷ 250 mcg = 3 tablets.
Question 2: If a medicine cup is marked in teaspoon increments, which line represents one teaspoon?
- 2.5 mL
- 5 mL (Correct answer)
- 10 mL
- 15 mL
Correct answer: 5 mL
One teaspoon equals 5 mL.
Question 3: A resident receives 2 tsp of liquid medication. How many mL is this?
- 5 mL
- 10 mL (Correct answer)
- 15 mL
- 20 mL
Correct answer: 10 mL
2 tsp × 5 mL/tsp = 10 mL.
Question 4: A medication label reads 250 mg/5 mL. The order is for 500 mg. How many mL should be given?
- 5 mL
- 10 mL (Correct answer)
- 15 mL
- 20 mL
Correct answer: 10 mL
500 mg ÷ 250 mg × 5 mL = 10 mL.
Question 5: Which unit of weight is smallest?
- Gram
- Milligram
- Microgram (Correct answer)
- Kilogram
Correct answer: Microgram
A microgram (mcg) is one-thousandth of a milligram, making it the smallest unit listed.
Question 6: A patient needs medication QID. How many times per day will they receive it?
- 2 times
- 3 times
- 4 times (Correct answer)
- 6 times
Correct answer: 4 times
QID (quater in die) means four times daily.
Question 7: An order reads: aspirin 325 mg PO PRN for pain. 'PRN' means the medication is given:
- Every morning
- As needed (Correct answer)
- Before meals
- At bedtime
Correct answer: As needed
PRN (pro re nata) means 'as needed.'
MACE Dosage Calculation and Measurement 3
A medication order is for 750 mcg.
The available stock is 0.25 mg per tablet.
How many tablets are needed?