Amoxicillin 500 mg PO every 8 hours is prescribed for a client with an infection. The drug is available in a suspension of 125 mg/5ml. How many ml should the nurse administer with each dose?
100 ml.
4 ml.
20 ml.
10 ml.
The Correct Answer is C
To calculate the volume of amoxicillin to be administered, we can use the following formula:
Volume (mL) = Desired Dose (mg) / Concentration (mg/mL)
Plugging in the given values:
Volume (mL) = 500 mg / 125 mg/mL
Calculating the result:
Volume (mL) = 20 mL
Therefore, the nurse should administer 20 mL of amoxicillin.
The correct answer is C. 20 ml.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2000"]
Explanation
To calculate the infusion rate of magnesium sulfate, we'll follow these steps:
1. Calculate the concentration of magnesium sulfate in the IV solution:
Magnesium Sulfate Concentration = Magnesium Sulfate (g) / Solution Volume (mL)
Magnesium Sulfate Concentration = 4 grams / 250 mL
Magnesium Sulfate Concentration = 16 mg/mL
2. Calculate the magnesium sulfate infusion rate in mg/hour:
Magnesium Sulfate Infusion Rate = Infusion Rate (mL/hour) x Magnesium Sulfate Concentration (mg/mL)
Magnesium Sulfate Infusion Rate = 125 mL/hour x 16 mg/mL
Magnesium Sulfate Infusion Rate = 2000 mg/hour
Therefore, the nurse should administer 2000 mg/hour of magnesium sulfate.
Correct Answer is ["5.8"]
Explanation
To calculate the infusion rate, we'll follow these steps:
1. Calculate the desired dose rate in mcg/minute:
Desired Dose Rate = Weight (kg) x Dose (mcg/kg/minute)
Desired Dose Rate = 86 kg x 8 mcg/kg/minute
Desired Dose Rate = 688 mcg/minute
2. Convert micro-grams to milligrams:
688 mcg x (1 mg / 1000 mcg) = 0.688 mg/minute
3. Calculate the concentration of dopamine in the IV solution:
Dopamine Concentration = Dopamine (mg) / Solution Volume (mL)
Dopamine Concentration = 800 mg / 500 mL
Dopamine Concentration = 1.6 mg/mL
4. Set up a proportion:
x mL/hour / 0.688 mg/minute = 60 minutes/hour / 1.6 mg/mL
5. Cross-multiply and solve for x:
x mL/hour = 0.688 mg/minute x 60 minutes/hour / 1.6 mg/mL
x mL/hour ≈ 25.8 mL/hour
Therefore, the nurse should program the infusion pump to deliver approximately 25.8 mL/hour.
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