ATI LPN Pharmacology and Dosage Calculation Proctored Exam
A doctor orders nine units /kg/hr for a Heparin infusion. The patient weighs 76 kg. You're supplied with a Heparin bag that reads 50 untis/mL. How many mL/hr will you administer? |Round your answer to the nearest tenths)
Explanation & Rationale
Given: Ordered dose of Heparin: 9 units/kg/hr Patient weight: 76 kg Concentration of Heparin: 50 units/mL Step 1: Calculate the total dose of Heparin: Total dose (units/hr) = Ordered dose (units/kg/hr) x Patient weight (kg) Total dose (units/hr) = 9 units/kg/hr x 76 kg Total dose (units/hr) = 684 units/hr Step 2: Calculate the infusion rate in mL/hr: Infusion rate (mL/hr) = Total dose (units/hr) / Concentration (units/mL) Infusion rate (mL/hr) = 684 units/hr / 50 units/mL Infusion rate (mL/hr) = 13.68 mL/hr Step 3: Round to the nearest tenth: Infusion rate (mL/hr) ≈ 13.7 mL/hr
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