A nurse is preparing to administer sulfadiazine 150mg/kg PO to divide equally every 6 hr to an adolescent who weighs 88 Ib.
Available is sulfadiazine 500 mg/tab.
How many tablets should the nurse administer per dose?
(Round to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.).
1 tablet.
3 tablets.
4 tablets.
8 tablets.
The Correct Answer is B
Step 1: Convert weight from lb to kg.
88 lb ÷ 2.2 = 40 kg
Step 2: Calculate total daily dose in mg.
150 mg/kg × 40 kg = 6000 mg
Step 3: Calculate dose per administration (every 6 hr).
6000 mg ÷ 4 = 1500 mg
Step 4: Calculate number of tablets per dose.
1500 mg ÷ 500 mg/tab = 3 tablets
Answer:
3 tablets per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Metformin is an antidiabetic agent used to treat type 2 diabetes mellitus.
It works by decreasing carbohydrate absorption from the gut, increasing glucose uptake in peripheral tissues in the presence of insulin, and reducing hepatic gluconeogenesis.
In normal patients, metformin ingestion is not associated with hypoglycemia.
However, it is still important to check the client’s glucose level to ensure that it is within a safe range.
Choice A is wrong because collecting the client’s uric acid level is not necessary after accidental administration of metformin.
Choice B is wrong because obtaining the client’s HDL level is not necessary after accidental administration of metformin.
Choice D is wrong because monitoring the client’s thyroid function levels is not necessary after accidental administration of metformin.
Correct Answer is C
Explanation
- A. Assist the client to a left lateral position.
- This is generally used for clients at risk of aspiration, and it's not indicated based on the lithium level.
- B. Implement fluid restrictions.
- Fluid restrictions are usually implemented when there is a risk of fluid overload or hyponatremia, and not in this case. In fact, dehydration can raise lithium levels to toxic levels, so proper hydration is important.
- C. Request a dosage increase from the provider.
- While 0.6 mEq/L is within the therapeutic range, some providers may want to see a level slightly higher for maintenance. So requesting a dosage increase from the provider is the correct action.
- D. Prepare the client for hemodialysis.
- Hemodialysis is used to remove lithium from the blood in cases of severe lithium toxicity, which is indicated by levels significantly higher than 1.5 mEq/L. This is not needed when the lithium level is 0.6 mEq/L.
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