Dosage calculation practice with answers PDF

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Dosage Calculations Practice Questions – NUR 313

1. A patient is receiving 500 mg of cefaclor oral suspension by mouth every 8 hours for pneumonia. The label reads cefaclor 250 mg/5mL, and the bottle contains 100 mL. How many milliliters of cefaclor should you give?

2. The physician’s order states Dulcolax 10 mg per rectum at 6am. You only have 5 mg suppositories on hand. How many suppositories should you give the patient?

3. Order: methotrexate 0.025 g IM weekly How many milliliters will the nurse administer?

4. Order: Epogen 1,200 units subcutaneous 3 times per week. How many milliliters should be administered per dose?

5. The physician prescribed an antibiotic, 20 mg/kg/day, PO. The patient weighs 44 lb. The antibiotic is available as 250 mg per 10 mL. The nurse should give_______________mL, twice daily.

6. Enoxaparin 1 mg per kg subcutaneously every 12 hr is prescribed for a patient weighing 190 lb. A prefilled syringe is available. How many milliliters should be administered to deliver the appropriate dose? How many milliliters must be expelled from the syringe to achieve the desire dose?

7. Order: potassium chloride 40 mEq PO daily Supplied: See picture below. How much potassium chloride will you prepare for the correct dose?

a. ½ fl oz

c. 1 fl oz

b. 15 mL

d. 5 mL

8. A patient is told to take ½ t of a medication. What is the equivalent dose amount in milliliters?

9. A medication is ordered to be administered QID. Which of the following possible administration times would be appropriate? Select all that apply. a. 0400, 0800, 1200, 1600, 2000, 2400 b. 0730, 1330, 1830, 2230 c. 2:00 am, 6:00 am, 10:00 am, 2:00 pm, 6:00 pm, 10:00 pm d. 0800, 1200, 2000, 2400 e. 7:00 am, 13:00 pm, 7:00 pm, 1:00 am

10. Calculate the total fluid intake in mL for 24 hours. Breakfast

8 oz milk 6 oz orange juice 4 oz water with medication

Lunch

8 oz iced tea

Snack

10 oz coffee 4 oz gelatin dessert

Dinner

8 oz water 6 oz tomato juice 6 oz beef broth

Snack

12 oz diet soda 4 oz water with medication

11. Conversions:

a. 1 in = _________cm b. 1 t = __________mL c. 35 degrees C = __________degrees F d. 103.5 degrees F = ________degrees C

12. Order: acetaminophen 150 mg PO q 4 hr fever greater than 102 degrees F Calculate the correct dose. The nurse drew up the amount below. Is the amount correct?

Answer Key

1. 10 mL 2. 2 supp 3. 1 mL 4. 0.12 mL 5. 16 mL 6. 0.57 mL (0.23 mL wasted) 7. 1 fl oz 8. 2.5 mL 9. b, e 10. 2280 mL 11. a. 2.5 cm b. 5 mL c. 95 degrees F d. 39.7 degrees C 12. 1.5 mL; no...