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
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Correct Answer is B
Explanation
A) Incorrect- Genetically inherited disorders of family members: While a family history of certain disorders might provide some insight, it is not typically the primary cause of elevated serum magnesium levels in an older adult.
B) Correct- Elevated serum magnesium levels are commonly associated with chronic laxative use, especially those containing magnesium-based compounds. Laxatives can lead to excessive magnesium intake, causing hypermagnesemia.
C. Incorrect- Smoking is not a common cause of elevated serum magnesium levels.
D. Incorrect- While dietary sources can contribute to magnesium intake, chronic laxative use is a more likely cause in this context.
Correct Answer is B
Explanation
A) Incorrect- While it's important for UAPs to report changes in a client's condition, the immediate priority is to assess and address the deteriorating condition of the client. The nurse's first action should be to stop the current care being provided and assess the client.
B) Correct- In this situation, the priority is to ensure the safety and well-being of the client. The client's deteriorated condition needs to be assessed promptly by a licensed nurse to determine the appropriate interventions. Stopping the care being provided by the unlicensed assistive personnel (UAP) allows the nurse to focus on the client's immediate needs.
C) Incorrect- Administering oral medications is not the immediate priority in this situation. The client's deteriorating condition takes precedence over administering medications.
D) Incorrect- While investigating the situation and addressing communication gaps is important, the first priority is to assess and address the client's current condition. The nurse needs to take immediate action to ensure the client's safety and well-being.
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