Dosage Calculations - Part 1 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

Dosage Calculations - Part 1 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified You need to administer 10,000 units of heparin. The vial reads 5,000 units/mL. How many mL will you draw up? **Work:** 10,000 units ÷ 5,000 units/mL = 2 mL 2 mL The doctor orders 300 mg of morphine. The vial contains 100 mg/2 mL. How many mL will you administer? **Work:** 300 mg ÷ (100 mg/2 mL) = 6 mL 6 mL The patient is to receive 500 mL of normal saline over 4 hours. What is the rate in mL/hr? **Work:** 500 mL ÷ 4 hours = 125 mL/hr 125 mL/hr A prescription is written for 1.5 g of amoxicillin. The available stock is 500 mg per capsule. How many capsules should you administer? 2 **Work:** 1.5 g = 1500 mg 1500 mg ÷ 500 mg/capsule = 3 capsules 3 capsules You are preparing to administer an IV infusion of potassium chloride. The doctor orders 40 mEq in 250 mL over 2 hours. What is the infusion rate in mL/hr? **Work:** 250 mL ÷ 2 hours = 125 mL/hr 125 mL/hr The order is for 750 mg of cephalexin. The vial contains 250 mg per 5 mL. How many mL will you give? **Work:** 750 mg ÷ (250 mg/5 mL) = 15 mL 15 mL A patient needs 4 mg of ondansetron. The available solution is 2 mg/mL. How many mL will you administer? **Work:** 4 mg ÷ 2 mg/mL = 2 mL 2 mL A doctor orders an infusion of 1,000 mL of D5W over 8 hours. What is the rate in mL/hr? 3 **Work:** 1,000 mL ÷ 8 hours = 125 mL/hr 125 mL/hr The patient is to receive 250 mg of hydrocodone. The available concentration is 10 mg/5 mL. How many mL will you administer? **Work:** 250 mg ÷ (10 mg/5 mL) = 125 mL 125 mL You need to give a dose of 30 mg of furosemide. The available vial contains 20 mg/mL. How many mL will you give? **Work:** 30 mg ÷ 20 mg/mL = 1.5 mL 1.5 mL The order is for 1.2 g of paracetamol. The available tablets contain 300 mg each. How many tablets should you give? **Work:** 1.2 g = 1200 mg 1200 mg ÷ 300 mg/tablet = 4 tablets 4 tablets 4 You are ordered to give 800 mg of vancomycin. The vial contains 500 mg/10 mL. How many mL will you draw up? **Work:** 800 mg ÷ (500 mg/10 mL) = 16 mL 16 mL The doctor orders 0.5 mg of lorazepam. The