A nurse is preparing to administer levothyroxine 0.4 mg IV bolus. The nurse reconstitutes a vial of levothyroxine to yield a final concentration of 100 mcg/ml. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it apples. Do not use a trailing zero.)
The Correct Answer is ["4"]
The nurse should administer 4 mL of levothyroxine.
Calculations:
Convert 0.4 mg to mcg: 0.4 mg x 1000 mcg/mg = 400 mcg
Desired dose = 400 mcg
Concentration = 100 mcg/mL
Volume = Desired dose / Concentration = 400 mcg / 100 mcg/mL = 4 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["3"]
Explanation
1 mg = 1000 mcg
To convert from micrograms (mcg) to milligrams (mg), divide by 1000:
3000 mcg ÷ 1000 = 3 mg
Correct Answer is ["3"]
No explanation
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