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 ["188"]
Explanation
Given:
Total volume to be infused: 1,500 mL
Infusion time: 8 hours
Step 1: Calculate the infusion rate:
Infusion rate (mL/hr) = Total volume (mL) / Infusion time (hr)
Step 2: Substitute the values:
Infusion rate (mL/hr) = 1,500 mL / 8 hr
Step 3: Calculate the infusion rate:
Infusion rate (mL/hr) = 187.5 mL/hr
Step 4: Round to the nearest whole number:
Infusion rate (mL/hr) ≈ 188 mL/hr
Correct Answer is ["2"]
Explanation
Given:
Desired dose of acetaminophen: 0.65 g
Concentration of acetaminophen tablets: 325 mg/tablet
Conversion factor: 1 g = 1,000 mg
Step 1: Convert the desired dose to milligrams:
Desired dose in mg = Desired dose in g x 1,000 mg/g
Desired dose in mg = 0.65 g x 1,000 mg/g
Desired dose in mg = 650 mg
Step 2: Calculate the number of tablets:
Number of tablets = Desired dose in mg / Concentration per tablet (mg/tablet)
Number of tablets = 650 mg / 325 mg/tablet
Number of tablets = 2 tablets
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