Master your PTCB Measurement Conversion skills with our challenging quiz. Convert units fast, sharpen accuracy, and boost your confidence. Take the quiz now to ace conversions like a pro.
Being able to accurately convert measurements is a critical skill for pharmacy technicians and is frequently tested on the PTCB exam. Questions may ask for simple unit conversions or use conversions as part of more complex calculations. It’s important to understand both the metric system and the US customary system.
Test your skills with our measurement conversion quiz and make sure you’re ready for any challenge on the exam.
Measurement Conversion Quiz
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Question 1 |
How many milligrams are in 0.75 grams?
75 mg | |
750 mg | |
7.5 mg | |
0.075 mg |
Question 1 Explanation:
1 gram = 1000 milligrams.
0.75 grams × 1000 = 750 mg.
Question 2 |
Convert 500 milliliters to liters.
0.05 L | |
5 L | |
0.5 L | |
50 L |
Question 2 Explanation:
1 liter = 1000 milliliters.
500 mL ÷ 1000 = 0.5 L.
Question 3 |
A prescription requires 2 teaspoons of medication. How many milliliters should be administered? (1 teaspoon = 5 mL)
10 mL | |
15 mL | |
5 mL | |
20 mL |
Question 3 Explanation:
2 teaspoons × 5 mL per teaspoon = 10 mL.
Question 4 |
How many micrograms are in 0.003 grams?
3 mcg | |
30 mcg | |
300 mcg | |
3000 mcg |
Question 4 Explanation:
1 gram = 1,000,000 micrograms.
0.003 grams × 1,000,000 = 3000 micrograms.
Question 5 |
Convert 1 fluid ounce (fl oz) to milliliters, knowing that 1 fl oz ≈ 29.57 mL.
28 mL | |
30 mL | |
29.57 mL | |
25 mL |
Question 5 Explanation:
By standard conversion, 1 fl oz ≈ 29.57 mL.
Question 6 |
A prescription order is for 5000 mcg of a drug. How many milligrams is this?
500 mg | |
0.5 mg | |
5 mg | |
50 mg |
Question 6 Explanation:
1 milligram = 1000 micrograms.
5000 mcg ÷ 1000 = 5 mg.
Question 7 |
How many pints are in 2 liters? (1 pint ≈ 473 mL)
2.12 pints | |
4.23 pints | |
1.89 pints | |
3.5 pints |
Question 7 Explanation:
2 liters = 2000 mL.
2000 mL ÷ 473 mL ≈ 2.12 pints.
Question 8 |
A dose of medication is prescribed as 0.25 mg. Express this dose in micrograms (mcg).
0.25 mcg | |
2500 mcg | |
25 mcg | |
250 mcg |
Question 8 Explanation:
1 mg = 1000 mcg → 0.25 mg × 1000 = 250 mcg.
Question 9 |
How many drops (gtt) are in 15 mL if 1 mL = 20 gtt?
200 gtt | |
300 gtt | |
250 gtt | |
150 gtt |
Question 9 Explanation:
15 mL × 20 gtt/mL = 300 gtt.
Question 10 |
A medication label states a concentration of 50 mg per 5 mL. How many mg are present in 10 mL?
100 mg | |
150 mg | |
200 mg | |
50 mg |
Question 10 Explanation:
50 mg per 5 mL means 10 mg per 1 mL → 10 mL × 10 mg/mL = 100 mg.
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