The healthcare provider prescribes penicillin 200,000 units intramuscularly for a patient with pneumonia.
The available vial is labeled “Penicillin 500,000 units/mL”. How much penicillin should be administered to the patient? (Enter numerical value only.
If rounding is required, round to the nearest tenth.)
The Correct Answer is ["0.4"]
Step 1 is to determine the amount of penicillin in each milliliter (mL) of the available solution. The vial is labeled as “Penicillin 500,000 units/mL”.
Step 2 is to divide the prescribed dose by the concentration per mL. So, the calculation is 200,000 units ÷ 500,000 units/mL. The result is 0.4 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
While it’s important to keep the feet moisturized to prevent skin cracks, this statement does not indicate that the client understands how to prevent complications related to diabetes mellitus.
Choice B rationale
Using salt, herbs, and spices to enhance the flavor of foods can be a part of a healthy diet, which is crucial in managing diabetes. This statement indicates that the client understands the importance of dietary management in preventing complications related to diabetes mellitus.
Choice C rationale
While moderate alcohol consumption may be acceptable for some people with diabetes, it’s not a key factor in preventing complications related to diabetes mellitus.
Choice D rationale
While regular monitoring of blood glucose control through tests like the A1C is important, this statement alone does not indicate that the client understands how to prevent complications related to diabetes mellitus.
Correct Answer is ["125"]
Explanation
Step 1 is to convert the volume of the prescription from liters to milliliters. 1 liter is equal to 1000 mL. So, the prescription is for 1000 mL of lactated Ringer’s.
Step 2 is to divide the total volume by the total time. The prescription is to be infused over 8 hours. So, 1000 mL ÷ 8 hours = 125 mL/hr. Therefore, the nurse should program the infusion pump to deliver 125 mL/hr.
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