Penicillin G procaine 240,000 units Intramuscularly (IM) is prescribed for a 4-year-old child who has a streptococcal respiratory infection. The medication vial is labeled, *1,200,000 units/2 mL" How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["0.4"]
Here's the breakdown of the calculation:
The medication vial is labeled 1,200,000 units/2 mL, which means there are 1,200,000 units of penicillin G per every 2 mL of the medication.
We need to find out how many mL are needed to administer the prescribed dose of 240,000 units.
To do this, we can divide the desired dose (240,000 units) by the concentration of the medication (units per mL).
Calculation:
Dose per mL = 1,200,000 units / 2 mL = 600,000 units/mL
Desired dose / Dose per mL = 240,000 units / 600,000 units/mL = 0.4 mL
Rounding to the nearest tenth, the nurse should administer 0.4 mL of Penicillin G procaine.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["168"]
Explanation
Here's how to calculate the total zidovudine dosage (mg) the nurse should prepare to administer:
1. Convert client weight from pounds to kilograms:
Client weight (kg) = Client weight (lb) / 2.2
Client weight (kg) = 185 lb / 2.2
Client weight (kg) = 84.1 kg (approximately)
2. Calculate the total zidovudine dose based on weight and prescribed dosage:
Dose (mg) = Dose (mg/kg) x Client weight (kg)
Dose (mg) = 2 mg/kg x 84.1 kg
Dose (mg) = 168.2 mg (round to nearest whole number as requested)
Therefore, the nurse should prepare to administer 168 mg of zidovudine.
Correct Answer is ["10"]
Explanation
First, we need to calculate the total amount of medication that will be administered in a day.
The prescription is for 250 mg every 8 hours, which means three doses per day (since there are 24 hours in a day).
Therefore, the total daily dosage is 250 mg x 3 = 750 mg.
Next, we need to find out how many milligrams are in the entire bottle.
Since each 5 mL contains 250 mg, we can calculate this by setting up a proportion:
(250 mg / 5 mL) = (Total mg / 150 mL)
Solving for Total mg gives us:
Total mg = (250 mg / 5 mL) * 150 mL Total mg = (50 * 150) Total mg = 7500 mg
Now that we know there are a total of 7500 mg in the bottle, we can determine how many days it will last by dividing this number by the total daily dosage:
Days = Total medication in bottle / Daily dosage Days = 7500 mg / (3 doses * 250mg) Days = 7500mg /750mg Days =10
Therefore, the bottle of medication will last for 10 days.
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