A nurse is preparing to administer iron dextran 75 mg IM to an adolescent. The amount available is iron dextran 50 mg/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 ["1.5"]
Identify the given information:
Dose of iron dextran: 75 mg
Concentration of iron dextran: 50 mg/mL
Calculate the volume of iron dextran to be administered:
Volume = Dose (mg) / Concentration (mg/mL)
Substitute the values:
Volume = 75 mg / 50 mg/mL
Volume = 1.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.65"]
Explanation
Identify the given information:
Dose of prochlorperazine: 0.13 mg/kg
Weight of the child: 55 lb
Concentration of prochlorperazine injection: 5 mg/mL
Convert the child's weight from pounds to kilograms:
1 lb ≈ 0.453592 kg
Calculate the total dose of prochlorperazine in mg:
Total dose = Dose/kg x Weight (kg)
Substitute the values:
Total dose = 0.13 mg/kg x 55 lb x (0.453592 kg/1 lb)
Total dose ≈ 3.4 mg
Calculate the volume of prochlorperazine injection to be administered:
Volume = Total dose (mg) / Concentration (mg/mL)
Substitute the values:
Volume = 3.4 mg / 5 mg/mL
Volume ≈ 0.68 mL
Round the answer to the nearest hundredth:
Volume ≈ 0.65 mL
Correct Answer is ["1.9"]
Explanation
Identify the given information:
Dose of nafcillin: 25 mg/kg/day
Weight of the child: 83 lb
Concentration of nafcillin injection: 250 mg/mL
Convert the child's weight from pounds to kilograms:
1 lb ≈ 0.453592 kg
Calculate the total daily dose of nafcillin in mg:
Total daily dose = Dose/kg/day x Weight (kg)
Substitute the values:
Total daily dose = 25 mg/kg/day x 83 lb x (0.453592 kg/1 lb)
Total daily dose ≈ 936.82 mg
Calculate the dose per dose (every 12 hours):
Dose per dose = Total daily dose / 2
Substitute the values:
Dose per dose = 936.82 mg / 2
Dose per dose ≈ 468.41 mg
Calculate the volume of nafcillin injection to be administered:
Volume = Dose per dose (mg) / Concentration (mg/mL)
Substitute the values:
Volume = 468.41 mg / 250 mg/mL
Volume ≈ 1.87 mL
Round the answer to the nearest tenth:
Volume ≈ 1.9 mL
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