A client receives a prescription for azithromycin (Zithromax) 500 mg PO x 3 days. Azithromycin is available as 250 mg scored tablets. How many tablets should the nurse administer per dose? (Enter the numerical value only.)
The Correct Answer is ["2"]
To calculate the number of tablets needed, we can set up a proportion:
x tablets / 500 mg = 1 tablet / 250 mg
Cross-multiplying:
250x = 500
Solving for x:
x = 500 / 250
x = 2
Therefore, the nurse should administer 2 tablets of azithromycin per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["16.8"]
Explanation
To calculate the volume of IV solution needed to dilute the nafcillin, we'll follow these steps:
Step 1: Calculate the total volume of the diluted solution:
Desired Concentration (mg/mL) = Prescribed Dose (mg) / Total Volume (mL)
Rearranging the formula to solve for Total Volume:
Total Volume (mL) = Prescribed Dose (mg) / Desired Concentration (mg/mL)
Total Volume = 800 mg / 40 mg/mL
Total Volume = 20 mL
Step 2: Calculate the volume of nafcillin solution to be added:
Volume of Nafcillin Solution = Prescribed Dose (mg) / Concentration of Nafcillin (mg/mL)
Volume of Nafcillin Solution = 800 mg / 250 mg/mL
Volume of Nafcillin Solution = 3.2 mL
Step 3: Calculate the volume of IV solution needed to dilute:
Volume of IV Solution = Total Volume - Volume of Nafcillin Solution
Volume of IV Solution = 20 mL - 3.2 mL
Volume of IV Solution = 16.8 mL
Therefore, the nurse should add 16.8 mL of IV solution to the volume control device to dilute the nafcillin.
Correct Answer is ["10.5"]
Explanation
To calculate the volume of pyridostigmine to be administered, we can use the following formula:
Volume (mL) = Desired Dose (mg) / Concentration (mg/mL)
However, the concentration is given in mg/5 mL. We need to convert it to mg/mL:
Concentration (mg/mL) = 60 mg / 5 mL = 12 mg/mL
Now, plug in the given values into the formula:
Volume (mL) = 126 mg / 12 mg/mL
Volume (mL) = 10.5 mL
Therefore, the nurse should administer 10.5 mL of pyridostigmine syrup.
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