An infant who weighs 22 pounds receives a prescription for amoxicillin 20 mg/kg/day by mouth in divided doses every 8 hours. The bottle is labeled, "Amoxicillin for Oral Suspension, USP 250 mg per 5 mL." How many mL should the nurse administer with each dose? (Enter numerical value only. If rounding is necessary, round to the nearest tenth.)
The Correct Answer is ["1.3"]
1. Convert the infant's weight from pounds to kilograms. We can use the conversion factor 1 kg
= 2.2 lb. So, 22 lb x (1 kg / 2.2 lb) = 10 kg.
2. Calculate the total daily dose of amoxicillin for the infant. We can use the formula D = d x W, where D is the total daily dose, d is the dose per kg per day, and W is the weight in kg. So, D = 20 mg x 10 kg = 200 mg.
3. Calculate the single dose of amoxicillin for the infant. We can divide the total daily dose by the number of doses per day. Since the prescription is for every 8 hours, there are 3 doses per day. So, 200 mg / 3 = 66.67 mg.
4. Calculate the volume of amoxicillin suspension for the single dose. We can use the ratio of the concentration of the suspension, which is 250 mg per 5 mL. So, 66.67 mg x (5 mL / 250 mg) =
1.33 mL.
5. Round the volume to the nearest tenth= 1.3 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Given the client's symptoms of constant chest pressure that is unrelieved with rest, along with the client's appearance of anxiety, pallor, and diaphoresis, it indicates a high likelihood of an acute coronary event, such as a myocardial infarction (heart attack). In this situation, the nurse should prioritize immediate actions that address the potential cardiac emergency.
Aspirin is an essential medication in the initial management of acute coronary syndrome, including unstable angina and myocardial infarction. It helps to inhibit platelet aggregation and reduce the risk of clot formation in the coronary arteries. The chewable form of aspirin is recommended because it allows for more rapid absorption.
While evaluating extremities for perfusion, pulse volume, and pitting edema is important in assessing the client's overall cardiovascular status, it is not the immediate next step when faced with a suspected acute coronary event.
Securing client consent for coronary angiography and percutaneous coronary intervention (PCI) is a relevant step in the management of unstable angina and myocardial infarction, but it is not the immediate action to be taken in the emergency department. The client requires stabilization and initial medical interventions before procedural consent can be obtained.
Placing an indwelling urinary catheter and instituting strict intake and output measurements is not a priority action in this situation. The focus should be on addressing the potential acute coronary event and ensuring the client's cardiac stability. Urinary catheterization and monitoring of intake and output can be considered later, if necessary.
Correct Answer is ["400"]
Explanation
To calculate the mL/hr rate for the infusion pump, we can use the following formula: mL/hr = (Total volume to be infused in mL) / (Time in hours)
In this case, the total volume to be infused is 200 mL, and the infusion time is 30 minutes, which is equal to 0.5 hours.
mL/hr = 200 mL / 0.5 hours mL/hr = 400 mL/hr
Therefore, the nurse should program the infusion pump to deliver 400 mL/hr.
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