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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Related Questions
Correct Answer is ["1"]
Explanation
Given:
Desired dose of nystatin: 100,000 units
Concentration of nystatin suspension: 100,000 units/mL
Step 1: Set up the proportion:
Desired dose (units) / Volume to administer (mL) = Concentration (units/mL)
Step 2: Substitute the values:
100,000 units / Volume = 100,000 units/mL
Step 3: Solve for the unknown volume:
Volume = 100,000 units / 100,000 units/mL
Step 4: Calculate the volume:
Volume = 1 mL
Correct Answer is ["2"]
Explanation
Given:
Desired dose of citalopram: 20 mg
Concentration of citalopram solution: 10 mg/5 mL
Conversion factor: 1 tsp = 5 mL
Step 1: Calculate the volume of citalopram solution needed:
Volume of citalopram solution (mL) = Desired dose (mg) / Concentration (mg/mL)
Volume of citalopram solution (mL) = 20 mg / (10 mg / 5 mL)
Volume of citalopram solution (mL) = 20 mg / 2 mg/mL
Volume of citalopram solution (mL) = 10 mL
Step 2: Convert the volume to teaspoons:
Number of teaspoons = Volume of citalopram solution (mL) / Volume per teaspoon (mL/tsp)
Number of teaspoons = 10 mL / 5 mL/tsp
Number of teaspoons = 2 tsp
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