A nurse is assisting with the care of a newborn who has a prescription for nystatin 100,000 units PO four times each day. Available is nystatin suspension 100.000 units/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.).
The Correct Answer is ["1"]
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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
Correct Answer is ["2"]
Explanation
1 mg = 1000 mcg
Prescribed dose: 0.4 mg Converted to mcg: 0.4 mg x 1000 = 400 mcg
Available tablets: 200 mcg each
Next, we divide the prescribed dose by the strength of the available tablets:
400 mcg / 200 mcg per tablet = 2 tablets
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