A nurse is preparing, to administer ampicillin 150 mg IM to an infant. Available is ampicillin injection 250 mg/mL. How many mL should the nurse administer? Round the answer off to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.6"]
Given:
Desired dose of ampicillin: 150 mg
Concentration of ampicillin injection: 250 mg/mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
150 mg / Volume = 250 mg/mL
Step 3: Solve for the unknown volume:
Volume = 150 mg / 250 mg/mL
Step 4: Calculate the volume:
Volume = 0.6 mL
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.8"]
Explanation
Given:
Desired dose of estradiol cypionate: 4 mg
Concentration of estradiol cypionate injection: 5 mg/mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
4 mg / Volume = 5 mg/mL
Step 3: Solve for the unknown volume:
Volume = 4 mg / 5 mg/mL
Step 4: Calculate the volume:
Volume = 0.8 mL
Correct Answer is ["0.25"]
Explanation
Given:
Desired dose of phytonadione: 0.5 mg
Concentration of phytonadione injection: 1 mg/0.5 mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
0.5 mg / Volume = 1 mg/0.5 mL
Step 3: Solve for the unknown volume:
Volume = 0.5 mg / (1 mg/0.5 mL)
Step 4: Calculate the volume:
Volume = 0.25 mL
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