Math Practice Test with Answers for Health Care

Calculations practice sheet (with answers ) 1. You need to administer prochlorperazine (Compazine) 10 mg IM to a nauseated patient. You have on hand Compazine 5 mg/mL. How much will you draw up in the syringe? 2 ml 2. The order reads: Over the next 4 hours, infuse 500 mL of 5% Dextrose in normal saline. Add 20 MEq of KCI to solution. You know that the IV tubing is calibrated to deliver 10 gtt/mL. In drops per minute, what is the rate of flow? (Answer in gtt/min rounded to the nearest whole number). a. 12 gtt/min b. 21 gtt/min c. 31 gtt/min d. 40 gtt/min (500 mL x 10 gtt/mL) ÷ (4 hrs. x 60 min) = 20.83 --> 21 gtt/min 3. An order reads furosemide (Lasix) 40 mg IV push. You have on hand 20 mg/2 mL. What is the correct dose in mL? 4 ml 4. A 500 cc solution of D5NS with 20,000 units of Heparin is infusing at 20 mL per hour. The IV set delivers 60 gtt per cc. How many units of Heparin is the patient receiving each hour? a. 400 units/h b. 600 units/h c. 800 units/h d. 900 units/h (20,000 units ÷ 500 cc) x 20 mL/h = 800 units/h 5. You have on hand diazepam (Valium) 5 mg/mL. You need to administer 8 mg IV push stat to a patient having a seizure. How much should you draw into the syringe? 1.6 6. What volume is required for an injection if 500mg are ordered and stock ampules contain 250mg/ml? 2mL 7. A patient has an IV piggyback of ceftriaxone sodium (Rocephin) 500 mg in 50 mL D5W to run over 20 minutes. The tubing has a drip factor of 10. How many drops per minute should be administered? 25 drops per minute 8. What volume is required for an injection if 600mg are ordered and stock ampules contain 350mg/ml? 1.71428 1.7mL 9. What volume is required for an injection if 750mg are ordered and stock ampules contain 200mg/ml? 3.8mL 10. The doctor orders an IV infusion of D5W 1000 mL to infuse over the next 4 hours. The IV tubing that you are using delivers 20 gtt/mL. What is the correct rate of flow? (Answer in gtt/min rounded to the nearest whole number). a. 42 gtt/min b. 60 gtt/min c. 72 gtt/min d. 83 gtt/min 11. A home care patient must restrict fluid intake to 2 L every 24 hours. He has only household measuring cups. How many cups may he drink daily and not exceed the 2 L limit? 8.3 cups 12. A dose of 2g of medication has ordered for a patient. The medication comes in 4g/0.4mL. What volume will you give the patient? 0.2mL 13. A patient has an IV piggyback of ceftriaxone sodium (Roceph in) 500 mg in 50 mL D5W to run over 20 minutes. If you use an IV pump, how many milliliters per hour will you set? 150 ml 14. A dose of 4500mg of medication has ordered for a patient. The medication comes in 5g/0.3mL. What volume will you give the patient? 0.27 mL 15. You have an order for 500mg vancomycin IVPB every 6 hours for a patient who weighs 120 pounds. You know that you can safely administer up to 40 mg/kg/day. Is the order safe? How many and/kg/day does this equal? 500mg……4(24 hr )=2000 total daily dose 2000 ---------- = 36.67mg/kg/day ..less than 40 mg/kg/day 54.54 ,,so it safe 16. A dose of 3500mg of medication has ordered for a patient. The medication comes in 5g/2mL. What volume will you give the patient? 1.4mL 17. A patient with heart failure has a daily order for digoxin 0.25 mg PO. Digoxin 0.125 mg tablets are available. How many tablets should you give? 2 tablets 18. A flask of 1.5L of 0.9% saline is required over 8hrs with a DF of 20. How many DPM is this? 62dpm 19. Your order reads ceftizoxime 1 g IV piggyback every 8 hours. The pharmacy supplies it in 100 mL D5W. You need to infuse it over 30 minutes. With a drop factor of 10, what drip rate will you set?33.3 gtt /m 20. A flask of 1L of 4% dextrose in saline is required over 6hrs with a DF of 15. How many DPM is this? 41.6666 rounded to 42dpm 21. You have on hand ergocalciferol liquid 8.000 units/2 mL. Your order reads ergocalciferol 225,000 units PO daily. How many milliliters will you administer? 56.25 ML 22. A flask of 850mL of 0.9% saline is required over 12hrs with a DF of 60. How many DPM is this? 70.83333 rounded to 71dpm 23. A child weighs 13.5kg and is prescribed a medication for 0.8mg/kg/dose. The stock strength is 10mg/2mL. What volume will you give the patient? 2.16 rounded to 2.2mL