## Practice Mode

**Practice Mode**** ^{ }**– Questions and choices are randomly arranged, the answer is revealed instantly after each question, and there is no time limit for the exam.

*NCLEX: Drug Dosage Calculation Exam 3 (PM)*. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%

## Exam Mode

**Exam Mode **– Questions and choices are randomly arranged, time limit of 1min per question, answers and grade will be revealed after finishing the exam.

*NCLEX: Drug Dosage Calculation Exam 3 (EM)*. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%

## Text Mode

**Text Mode **– Text version of the exam

1. Your patient is taking acetaminophen (Tylenol) gr 15 every 6 hours PO for headache pain. You know the maximum safe dose is 4 g in 24 hours. Is the dose safe?

- 2 g/day, safe!
- 4 g/day, safe!
- 6 g/day, not safe!
- 8 g/day, not safe!

2. You are caring for your ill grandmother at home. She has an order for magnesium hydroxide/aluminum hydroxide (Maalox) 10 mL PO prn stomach upset. How do you instruct her to measure her dose using household measuring spoons?

- 1 teaspoon
- 1 1/2 teaspoons
- 2 teaspoons
- 2 1/2 teaspoons

3. Your patient needs 2,000 mL of saline IV over 4 hours for severely deficient fluid volume. How many milliliters per hour will you set on a controller?

- 500 mL/hour
- 250 mL/hour
- 33 mL/hour
- 8 mL/hour

4. Your patient needs 2,000 mL of D5W IV over 24 hours, to be delivered with a tubing set with a drop factor of 15. How many drops per minute will you set for an infusion rate?

- 83 gtts/minute
- 42 gtts/minute
- 36 gtts/minute
- 21 gtts/minute

5. You have on hand penicillin 300,000 units/mL. Your order reads penicillin 1,000,000 units IM. How will you fill the syringe?

- 0.3 mL
- 3.3 mL
- 4.4 mL
- 5.5 mL

6. The physician orders alprazolam (Xanax) 0.5 mg PO. You have on hand Xanax 0.25 mg tablets. How many will you give?

- 1/2 tablet
- 1 tablet
- 1 1/2 tablets
- 2 tablets

7. You need to administer 250 mg of erythromycin PO. You have on hand 0.5 g tablets. How many tablets will you give?

- 1/2 tablet
- 1 tablet
- 1 1/2 tablets
- 2 tablets

8. You need to administer 400 mg of erythromycin PO. You have on hand a suspension of 125 mg/5 mL. How much will you prepare?

- 1.6 mL
- 3.2 mL
- 12 mL
- 16 mL

9. You need to administer furosemide (Lasix) 2 mg/minute via continuous IV infusion on a controller. Pharmacy has sent a bag of Lasix 400 mg diluted in D5W 250 mL. How many milliliters per hour will you set on the controller?

- 75 mL/hour
- 100 mL/hour
- 150 mL/hour
- 250 mL/hour

10. A patient with HIV infection is receiving 200 mg of didanosine PO bid. The pharmacy only has powder packets with 167 mg each, to be mixed with 4 oz of water. How many packets should the patient mix? How much should the patient take? How can it be measured?

- 4.8 oz
- 3.3 oz
- 2.2 oz
- 1.8 oz

###### Answers and Rationales

**Answer: B.**(15~~gr~~/~~dose~~) x (4~~doses~~/day) x (1g/15~~gr~~) =**4 g/day.***The dose is at the upper limit of a safe dose.**Answer: C.**10~~mL~~x (1 tsp/5~~mL~~) =**2 teaspoons****Answer: A.**(2,000 mL/ 4 hours) =**500 mL/ hour****Answer: D.**(2,000~~mL~~/24~~hours~~) x (1~~hour~~/60 minutes) x 15 gtts/~~mL~~=**21 gtts/minute****Answer: B.**1,000,000~~units~~x (1 mL/ 300,000~~units~~) =**3.3 mL****Answer: D.**0.5~~mg~~x (1 tablet/ 0.25~~mg~~) =**2 tablets****Answer: A.**250~~mg~~x (1~~g~~/1,000~~mg~~) x (1 tablet/ 0.5~~g~~) =**1/2 tablet****Answer: D.**400~~mg~~x (5 mL/125~~mg~~) =**16 mL****Answer: A.**(2~~mg~~/~~minute~~) x (250 mL/400~~mg~~) x (60~~minutes~~/ 1 hour)=**75 mL/hour****Answer: A.**200~~mg~~x (4 oz / 167~~mg~~) =**4.8 oz***The patient will have to mix two packets, each in 4 oz of water, and drink 4.8 oz measured in a calibrated measuring cup. If a cup that measures milliliters is available, then: 4.8~~oz~~x (30 mL/1~~oz~~)= 144 mL or 144~~mL~~x (1 tbsp/15~~mL~~)= 9.6 tbsp.