**Dosage (drug) calculations nursing comprehensive quiz** for students!

This drug calculations review contains questions that cover a wide variety of dosage calculations problems you will encounter on exams and on the job. Here are 13 categories you will be tested on with this quiz:

**Conversions****Oral Liquid Medications****Capsules and Tablets****IV Boluses****IV Flow Rates (gtts/min)****IV Flow Rate (mL/hr)****IV Flow Rates (Infusion Time)****Weight-based Medications****Heparin Dosage based on PTT****Pediatric Safe Dosages****IV Drug Reconstitution****Tube Feedings****Body Surface Area**

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## Dosage (Drug) Calculations for Nursing

1.) 27 mg= mcg

A. 270 mcg

B. 27,000 mcg

C. 0.027 mcg

D. 37 mcg

The answer is B.

2.) 6 tsp = ml

A. 5 ml

B. 1.2 ml

C. 30 ml

D. 15 ml

The answer is C.

3.) The doctor writes an order for a liquid oral medication. The order says to administer 15 mg by mouth every 4 hours as needed for sore throat. Pharmacy dispenses you with 30 mg/3ml. How many ml will you administer per dose?

A. 0.5 ml/dose

B. 3 ml/dose

C. 1.5 ml/dose

D. 6 ml/dose

The answer is C.

4.) The doctor writes an order a liquid oral medication. The order says to administer 20 grams by mouth BID. Pharmacy dispenses you with 10 gram/15 ml. How many ml will you administer per dose?

A. 30 ml/dose

B. 15 ml/dose

C. 20 ml/dose

D. 7.5 ml/dose

The answer is A.

5.) The doctor writes an order for a medication. The order says to administer 12.5 mg PO BID. Pharmacy dispenses you with 6.25 mg tablets. How many tablets do you administer with this dose?

A. 2 tablets/dose

B. 2.75 tablets/dose

C. 1.5 tablet/dose

D. 4 tablets/dose

The answer is A.

6.) The doctor writes an order for a medication. The order says to administer 0.1 gram by mouth daily. Pharmacy dispenses you with 100 mg per tablet. How many tablets will you administer per dose?

A. 1 tablet

B. 9 tablets

C. 0.25 tablet

D. 0.5 tablet

The answer is A.

7.) The doctor orders an IV bolus. The order says to administer IV now 12.5 mg. You are supplied with a via that is labeled 50mg/ml. How many ml will you draw up and administer per dose?

A. 1 ml/dose

B. 0.25 ml/dose

C. 12.5 ml/dose

D. 25 ml/dose

The answer is: B.

8.) The doctor writes an order for an IV bolus. The order says to administer 20 mg IV BID. You’re supplied with a vial that is labeled 40mg/ml. How many ml will the patient receive DAILY (NOT per dose)?

A. 2 mL/day

B. 1 ml/day

C. 20 ml/day

D. 0.5 ml/day

The answer is B.

9. The doctor writes an order to infuse a solution. The order reads: “Infuse 1500 mL over 12 hours”. The drip factor is 15 gtt/mL. How many drops per minute (gtts/min) will be administered?

A. 31 gtt/min

B. 32 gtt/min

C. 95 gtt/min

D. 15 gtt/min

The answer is A.

10. The doctor writes an order to infuse a solution. The order reads: “Infuse 650 mL over 6 hours. The drip factor is 10 gtt/mL. How many drops per minute (gtts/min) will be administered?

A. 360 gtt/min

B. 96 gtt/min

C. 9 gtt/min

D. 18 gtt/min

11. The doctor writes an order to infuse a solution. The order reads: “Infuse 300 mL over 6 hours”. What is the hourly rate (mL/hr)?

A. 50 mL/hr

B. 100 mL/hr

C. 1800 mL/hr

D. 90 mL/hr

The answer is A.

12. The doctor writes an order to infuse a solution. The order reads: “Infuse 2,500 mL over 1 day.”. What is the hourly rate (mL/hr)?

A. 104 mL/hr

B. 140 mL/hr

C. 24 mL/hr

D. 5,000 mL/hr

The answer is A.

13. The doctor writes an order to infuse a solution. The order reads: “Infuse 2 L at 150 mL/hr”. How long will it take for the infusion to complete?

A. 13 hrs 20 minutes

B. 18 hrs 25 minutes

C. 6 hrs 9 minutes

D. 14 hrs 3 minutes

The answer is A.

14. The doctor writes an order to infuse a solution. The order reads: “Infuse 500 mL bag at 20 gtt/min”. The drip factor is 10 gtt/mL. You start the IV infusion at 0500. At what time will the infusion be complete?

A. 0630

B. 0853

C. 2210

D. 0910

The answer is D.

15. The doctor orders an IV weight-based medication to be infused at 4 mcg/kg/min. The patient weighs 198 lbs. You are supplied with a bag of the IV medication that reads 250mg/250 ml. How many mL/hr will you administer?

A. 7 mL/hr

B. 8.35 mL/hr

C. 21.6 mL/hr

D. 25 mL/hr

The answer is C.

16. The doctor orders an IV weight-based medication to be infused at 12 mg/kg. The patient weighs 115 lbs. You are supplied with a bag of the IV medication that reads 100 mg/2mL. How many mL/hr will you administer?

A. 24 mL/hr

B. 3 mL/hr

C. 12.5 mL/hr

D. 1.5 mL/hr

The answer is C.

17. The doctor orders your patient to start an IV Heparin drip at 16 units/kg/hr and to administer a loading bolus dose of 60 units/kg IV before initiation of the drip. You’re supplied with a Heparin bag that reads 12,500 units/250 mL. The patient weighs 198 lbs. What is the flow rate you will set the IV pump (mL/hr)?

A. 69.6 mL/hr

B. 12.5 mL/hr

C. 43.6 mL/hr

D. 28.8 mL/hr

The answer is D.

18. The doctor orders a medication dose of 300 mg daily for a child that weighs 72 lbs. The safe dosage range for the ordered medication is 10-12 mg/kg/day. What is the safe dosage range for this child and is this a proper dose?

A. Yes, this is a safe dose.

B. No, this is not a safe dose. A safe dose is 310.8-558.2 mg/day.

C. No, this is not a safe dose. A safe dose is 327.3-392.7 mg/day.

The answer is C.

19. The doctor orders 25 mg of an IV medication that needs to be reconstituted. The instructions say 50 mg of the medication is to reconstitute with normal saline for a solution of 2.5 mg/ml. How many mL will you draw up to achieve this ordered dose?

A. 5 mL

B. 1 mL

C. 10 mL

D. 6 mL

The answer is C.

20. The patient is ordered Glucerna 1.2 cal. You’re supplied with a can of Glucerna that contains 237 mL of feeding formula. The doctor orders the tube feeding to be administered at a 1/2 strength with a rate of 65 mL/hr. How much water will you add to dilute the tube feeding formula as prescribed?

A. 118.5 mL

B. 474 mL

C. 68 mL

D. 237 mL

The answer is D.

21. A pediatric patient is ordered a medication dose of 100 mg/ m² a day by mouth for 5 days. The patient weighs 55 lbs. and is 4 feet 5 inches. What is the daily dose of medication the patient will receive?

A. 0.92 mg

B. 1.12 mg

C. 30 mg

D. 96 mg

The answer is D.

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