A nurse is preparing to administer heparin 2.000 units by IV bolus. Available is heparin injection 5.000 units/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.4"]
Step-by-Step Calculation
Understanding the Problem
We need to administer 2000 units of heparin.
The available concentration of heparin is 5000 units/mL.
We need to find the volume to administer.
Calculations
Set up a proportion:
5000 units / 1 mL = 2000 units / x mL
Cross-multiply:
5000x = 2000
Solve for x:
x = 2000 / 5000
x = 0.4 mL
The nurse should administer 0.4 mL of heparin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) 32 units: This calculation only includes the 14 units of regular insulin and a portion of the NPH insulin. The total units of insulin required are not 32 but rather the sum of both regular and NPH insulins.
B) 28 units: This amount represents only the units of NPH insulin and does not include the regular insulin, which is also prescribed.
C) 14 units: This amount represents only the units of regular insulin and does not include the NPH insulin, which is also prescribed.
D) 42 units: The total number of insulin units required is the sum of the regular insulin (14 units) and the NPH insulin (28 units), which equals 42 units. This total should be prepared in the insulin syringe to ensure the correct dosage is administered.
Correct Answer is ["43.2"]
Explanation
Convert pounds to kilograms: 95 lbs ÷ 2.2 lbs/kg = 43.18 kg
Calculate the dose: 1 mg/kg X 43.18 kg = 43.18 mg
Round to the nearest whole number: 43.2 mg
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