## 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 7 (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 7 (EM)*. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%

## Text Mode

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

1. You have on hand enoxaparin (Lovenox) 30 mg/0.3 mL. You need to administer 1 mg/kg SC. Your patient weighs 200 pounds. How much will you draw into a syringe?

- 0.3 mL
- 0.9 mL
- 3 mL
- 6 mL

2. Amoxil (amoxicillin) suspension 180 mg PO bid is ordered for a patient who cannot swallow pills. It is supplied as 125 mg/5 mL. How many milliliters should you administer?

- 1.4 mL
- 3.5 mL
- 5 mL
- 7.2 mL

3. Heparin sodium, 1000 units/hour IV, is ordered for a patient with a blood clot in the leg. It is supplied as 50,000 units in 500 mL of dextrose and water. How many milliliters per hour should be set on the controller?

- 10 mL/hour
- 5 mL/hour
- 10.5 mL/hour
- 1 mL/hour

4. Diltiazem (Cardizem) 90 mg PO tid is ordered for a patient with hypertension. It is supplied in 60 mg scored tablets. How many tablets should you administer?

- 3.5 tablets
- 3 tablets
- 1.5 tablets
- 1 tablet

5. Atropine 0.6 mg IM is ordered preoperatively. It is supplied as 0.4 mg/mL. How many milliliters should you administer?

- 2.3 mL
- 2 mL
- 1.5 mL
- 0.7 mL

6. Morphine sulfate 2 mg IV push is ordered to relieve shortness of breath in a patient with chronic lung disease. It is supplied as gr 1/6 /mL. How many milliliters should you administer?

- 1 mL
- 0.2 mL
- 1.6 mL
- 0.03 mL

7. Each acetaminophen (Tylenol) #3 tablet has 325 mg of acetaminophen and 30 mg codeine. A patient is told to take 2 tablets PO every 4 hours for pain. The maximum safe dose of acetaminophen is 4 g/day. The safe dose of codeine varies with tolerance. Is the dose safe?

- 3.25 grams per day. Safe!
- 3.9 grams per day. Safe!
- 8.25 grams per day. Not safe!
- 8.9 grams per day. Not safe!

8. Levothyroxine (Synthroid) 150 mcg PO per day is ordered for a patient with hypothyroidism. It is supplied as 0.075 mg tablets. How many tablets should the patient take daily? A safe dose of Synthroid is 1.5 mcg/kg/day. The patient weighs 196 pounds. Is the dose safe?

- 2 tablets. The patient is receiving 1.5 mcg/kg. Safe!
- 1.5 tablets. The patient is receiving 1.5 mcg/kg. Safe!
- 2 tablets. The patient is receiving 1.7 mcg/kg. Not safe!
- 1.5 tablets. The patient is receiving 1.7 mcg/kg. Not safe!

9. A patient is receiving 250 mL normal saline IV over 4 hours, using tubing with a drip factor of 10 drops/mL. How many drops per minute should be delivered?

- 10 gtts/minute
- 18 gtts/minute
- 23 gtts/minute
- 31 gtts/minute

10. Cephazolin 1 g IV is ordered three times a day for a patient with pneumonia. It is supplied in 100 mL dextrose and water, to run over 20 minutes. How many milliliters per hour should you set the controller to deliver?

- 50 mL/hour
- 100 mL/hour
- 200 mL/hour
- 300 mL/hour

###### Answers and Rationales

**Answer: B.**(1~~mg~~/~~kg~~) x (0.3 mL/30~~mg~~) x 200~~lb~~s x (1~~kg~~/2.2~~lbs~~)=**0.9 mL****Answer: D.**180~~mg~~x (5 mL/125~~mg~~)=**7.2 mL****Answer: A.**(1,000~~units~~/ 1 hour) x (500 mL/ 50,000~~units~~)=**10 mL/hour****Answer: C.**90~~mg~~x (1 tablet/60~~mg)~~=**1.5 tablets****Answer: C.**0.6~~mg~~x (1 mL/0.4~~mg)~~=**1.5 mL****Answer: B.**2~~mg~~x (1~~gr~~/60~~mg~~) x [1 mL/(1/6~~gr~~)]=**0.2 mL****Answer: B.***Because the safe dose of codeine is variable and is determined by patient response, you only need to figure safe dose for the Tylenol for this problem. (325~~mg~~/~~tablet~~) x (2~~tablets~~/~~dose~~) x (6~~doses~~/day) x (1 gram/1,000~~mg~~)=**3.9 grams per day. Safe!***3.9 grams per day is less than the maximum safe dose of 4 grams, so it is safe.**Answer: C. 2 tablets. The patient is receiving 1.7 mcg/kg. Not safe!**- 150
~~mcg~~x (1~~mg~~/1,000~~mcg~~) x (1 tablet/0.075~~mg~~) = 2 tablets - (150 mcg/ 196
~~lbs~~) x (2.2~~lbs~~/1 kg ) = the patient is receiving 1.7 mcg/kg - *Not safe, the dose of 1.7 mg/kg is greater than 1.5 mg/kg, so the dose is too high

- 150
**Answer: A.**(250~~mL~~/ 4~~hrs~~) x (1~~hr~~/60 mins) x (10 gtts/~~mL~~)=**10 gtts/min****Answer: D.**(100 mL/ 20~~mins~~) x (1 hr/ 60~~mins~~)=**300 mL/hour**