Dosage Calculation Quiz
Questions: 16 · 10 minutes
1. A liquid medication is labeled 100 mg per 5 mL. What volume contains 60 mg?
2 mL
5 mL
3 mL
6 mL
2. A solution contains 250 mg in 100 mL. It is prescribed at 5 mg per minute. What pump rate delivers that dose?
120 mL/hour
50 mL/hour
200 mL/hour
12 mL/hour
3. An injectable solution contains 0.5 mg/mL. What volume provides a prescribed dose of 0.25 mg?
1 mL
2 mL
0.25 mL
0.5 mL
4. Convert 0.6 g to milligrams.
60 mg
600 mg
6,000 mg
0.0006 mg
5. A prescription is for 1.5 g of a medication available as 500 mg tablets. How many tablets are needed?
2 tablets
30 tablets
1.5 tablets
3 tablets
6. An order calls for 500 mL to infuse over 4 hours using tubing calibrated at 15 drops/mL. What is the flow rate, rounded to the nearest whole drop per minute?
125 drops/minute
31 drops/minute
47 drops/minute
8 drops/minute
7. A prescription calls for 500 mg. Each tablet contains 250 mg. How many tablets are needed?
2 tablets
0.5 tablet
1 tablet
2.5 tablets
8. An IV bag contains 1,000 mL and must infuse evenly over 8 hours. What pump rate is required?
80 mL/hour
125 mL/hour
120 mL/hour
8,000 mL/hour
9. A person weighs 44 lb. Using 1 kg = 2.2 lb, what dose is required at 2 mg/kg?
20 mg
40 mg
88 mg
9.1 mg
10. After reconstitution, a vial contains 250 mg/mL. What volume provides a 375 mg dose?
0.67 mL
1.25 mL
1.5 mL
2.5 mL
11. A total daily dose of 1,200 mg is to be divided equally every 8 hours over 24 hours. How much is given per dose?
400 mg
300 mg
600 mg
150 mg
12. A child weighs 18 kg, and the prescribed dose is 10 mg/kg per dose. How many milligrams are required for one dose?
1800 mg
28 mg
1.8 mg
180 mg
13. A 1,500 mL infusion is intended to run at a constant rate over 24 hours. How much should infuse during an 8-hour shift?
188 mL
750 mL
500 mL
1,000 mL
14. A recommended range is 10-15 mg/kg per dose. For a person weighing 25 kg, how should a prescribed 300 mg dose be classified?
It is within the 250-375 mg recommended range.
It is 25 mg above the recommended range.
It is 50 mg below the recommended range.
It cannot be compared with a per-dose range without knowing the daily frequency.
15. A liquid contains 250 mg in 5 mL. What volume provides a 750 mg dose?
10 mL
20 mL
15 mL
3 mL
16. Convert 125 micrograms (mcg) to milligrams (mg).
1.25 mg
0.0125 mg
125,000 mg
0.125 mg