IV Calculation Quiz
Questions: 16 · 10 minutes
1. An IV order specifies 0.25 mg of a medication. How many micrograms is this?
25 mcg
2,500 mcg
250 mcg
0.00025 mcg
2. A medication is prescribed at 5 mcg/kg/minute for a 70 kg patient. The prepared solution contains 400 mg in 250 mL. Rounded to the nearest tenth, what pump rate delivers the prescribed dose?
13.1 mL/hour
8.2 mL/hour
21.9 mL/hour
1.3 mL/hour
3. A 150 mL gravity infusion uses tubing with a drop factor of 15 gtt/mL and runs at 50 gtt/minute. How long will the infusion take?
45 minutes
40 minutes
30 minutes
75 minutes
4. A daily IV fluid order is 30 mL/kg/day for a 60 kg patient. If delivered evenly over 24 hours, what hourly rate is required?
30 mL/hour
60 mL/hour
75 mL/hour
1,800 mL/hour
5. A dose of 2 g is prescribed. After reconstitution, the vial concentration is 500 mg/mL. What volume contains the prescribed dose?
1 mL
4 mL
2 mL
10 mL
6. A child weighs 18 kg and is prescribed 12 mg/kg per dose. A solution contains 120 mg in 5 mL. What volume provides one prescribed dose?
9 mL
4.5 mL
0.9 mL
18 mL
7. A gravity infusion contains 250 mL and must run over 2 hours. The tubing has a drop factor of 20 gtt/mL. Rounded to the nearest whole drop, what rate is needed?
42 gtt/minute
25 gtt/minute
21 gtt/minute
50 gtt/minute
8. An infusion runs at 75 mL/hour for 2 hours 15 minutes. Rounded to the nearest whole milliliter, how much fluid is delivered?
150 mL
169 mL
173 mL
338 mL
9. A 1,000 mL bag starts full and runs at 80 mL/hour for 3.5 hours. Ignoring overfill, how much fluid remains?
280 mL
720 mL
800 mL
640 mL
10. A 500 mL IV bag is running at 125 mL/hour. How long will the full bag take to infuse?
2 hours
6.25 hours
5 hours
4 hours
11. A 0.9% weight/volume solution contains 0.9 g per 100 mL. How many grams of solute are present in 500 mL?
45 g
0.45 g
5.0 g
4.5 g
12. An infusion bag contains 25,000 units in 500 mL. The prescribed rate is 1,200 units/hour. What pump rate delivers that amount?
12 mL/hour
20 mL/hour
24 mL/hour
50 mL/hour
13. An order calls for 1,000 mL of IV fluid to infuse evenly over 8 hours. What pump rate is required?
1,000 mL/hour
80 mL/hour
160 mL/hour
125 mL/hour
14. A prescribed IV dose is 750 mg. The available solution contains 250 mg in 5 mL. What volume contains the prescribed dose?
3 mL
62.5 mL
30 mL
15 mL
15. After reconstitution, a vial contains 1 g of medication in a total volume of 20 mL. What is the concentration?
5 mg/mL
50 mg/mL
20 mg/mL
200 mg/mL
16. A solution contains 200 mg in 100 mL. The prescribed continuous dose is 3 mg/minute. What pump rate is required?
60 mL/hour
150 mL/hour
90 mL/hour
180 mL/hour