The healthcare provider prescribes the standard heparin protocol for a client who weighs 95 kg and is diagnosed with a deep vein thrombosis. The loading dose is an IV bolus of 80 units/kg. Heparin is available in vials of 5,000 units/mL. How many mL of heparin should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["1.5"]
Given:
Ordered loading dose of Heparin: 80 units/kg
Patient weight: 95 kg
Concentration of Heparin: 5,000 units/mL
Step 1: Calculate the total loading dose of Heparin:
Total loading dose (units) = Ordered dose (units/kg) x Patient weight (kg)
Total loading dose (units) = 80 units/kg x 95 kg
Total loading dose (units) = 7600 units
Step 2: Calculate the volume to be administered:
Volume (mL) = Total loading dose (units) / Concentration (units/mL)
Volume (mL) = 7600 units / 5000 units/mL
Volume (mL) = 1.52 mL
Step 3: Round to the nearest tenth:
Volume (mL) ≈ 1.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.5"]
Explanation
Given:
Ordered loading dose of Heparin: 80 units/kg
Patient weight: 95 kg
Concentration of Heparin: 5,000 units/mL
Step 1: Calculate the total loading dose of Heparin:
Total loading dose (units) = Ordered dose (units/kg) x Patient weight (kg)
Total loading dose (units) = 80 units/kg x 95 kg
Total loading dose (units) = 7600 units
Step 2: Calculate the volume to be administered:
Volume (mL) = Total loading dose (units) / Concentration (units/mL)
Volume (mL) = 7600 units / 5000 units/mL
Volume (mL) = 1.52 mL
Step 3: Round to the nearest tenth:
Volume (mL) ≈ 1.5 mL
Correct Answer is ["2"]
Explanation
Given:
Ordered dose of Fentanyl: 100 mcg
Concentration of Fentanyl: 0.05 mg/mL
Step 1: Convert mcg to mg:
Ordered dose (mg) = Ordered dose (mcg) / 1000 mcg/mg
Ordered dose (mg) = 100 mcg / 1000 mcg/mg
Ordered dose (mg) = 0.1 mg
Step 2: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 3: Substitute the values:
0.1 mg / Volume = 0.05 mg/mL
Step 4: Solve for the unknown volume:
Volume = 0.1 mg / (0.05 mg/mL)
Volume = 0.1 mg x (1 mL / 0.05 mg)
Volume = 2 mL
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