A nurse is caring for a client who is taking triamterene.
For which of the following laboratory values should the nurse withhold the medication?
Sodium 142 mEq/L.
BUN 16 mg/dL.
Potassium 5.3 mEq/L.
Albumin 4 g/dL.
The Correct Answer is C
This is a high level of potassium in the blood (the normal range is 3.5 to 5 mEq/L) and can be dangerous for the heart.
Triamterene is a potassium-sparing diuretic that prevents the body from losing too much potassium in the urine. It can cause hyperkalemia (high potassium), especially in people with kidney disease, diabetes, or severe illness. The nurse should check the potassium level before giving triamterene and hold the medication if it is above 5 mEq/L.
The other choices are incorrect because:
Choice A: Sodium 142 mEq/L.
This is a normal level of sodium in the blood (the normal range is 135 to 145 mEq/L) and does not require withholding triamterene. Triamterene can cause hyponatremia (low sodium) by increasing the excretion of sodium in the urine. The nurse should monitor the sodium level during triamterene therapy and report any signs of low sodium such as confusion, weakness, or seizures.
Choice B: BUN 16 mg/dL.
This is a normal level of blood urea nitrogen (BUN) in the blood (normal range is 7 to 20 mg/dL) and does not require withholding
triamterene. BUN is a measure of kidney function and can be elevated in kidney disease or dehydration. Triamterene can cause an increase in BUN by reducing the blood flow to the kidneys or by interacting with other medications that affect the kidneys. The nurse should monitor the BUN level during triamterene therapy and report any signs of kidney impairment such as decreased urine output, swelling, or nausea. •
Choice D: Albumin 4 g/dL.
This is a normal level of albumin in the blood (the normal range is 3.4 to 5.4 g/dL) and does not require withholding triamterene. Albumin is a protein that helps maintain fluid balance and transport substances in the blood. Triamterene does not affect albumin levels directly, but it can cause fluid loss or retention that may alter albumin levels indirectly. The nurse should monitor the albumin level during triamterene therapy and report any signs of fluid imbalance such as weight changes, edema, or shortness of breath.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
This is the priority for the nurse to report to the provider because cefuroxime is a cephalosporin antibiotic that can cause serious or life-threatening allergic reactions in people who are allergic to penicillin. The nurse should not administer cefuroxime to this client until the provider is notified and an alternative antibiotic is prescribed.
Choice A is wrong because the client has a BUN level of 18 mg/dL, which is within the normal range of 7 to 20 mg/dL.
This does not indicate any renal impairment or adverse reaction to cefuroxime.
Choice B is wrong because the client reports a history of nausea with cefuroxime, which is a common side effect of this drug.
The nurse should instruct the client to take cefuroxime with food to reduce nausea, but this is not a priority to report to the provider.
Choice D is wrong because the client takes aspirin daily, which does not interact with cefuroxime.
The nurse should monitor the client for any signs of bleeding or bruising while taking aspirin, but this is not a priority to report to the provider.
Correct Answer is A
Explanation
Hyponatremia is a condition where the sodium level in the blood is too low, which can cause confusion, lethargy, seizures, and coma. A hypertonic solution is a fluid that has a higher concentration of solutes than the blood, which can help raise the sodium level and reduce the brain swelling caused by hyponatremia. Therefore, improved cognition indicates that the treatment is effective.
Choice B. Cardiac arrhythmias absent.
Cardiac arrhythmias are not a common symptom of hyponatremia unless it is severe or rapid in onset.
Therefore, their absence does not necessarily indicate that the treatment is effective.
Choice C. Decreased vomiting.
Vomiting can be a cause or a consequence of hyponatremia, depending on the underlying condition.
Decreased vomiting may indicate that the patient is less nauseated, but it does not reflect the sodium level or the brain status.
Choice D. Absent Chvostek’s sign.
Chvostek’s sign is a facial twitching that occurs when tapping on the cheek, which indicates hypocalcemia (low calcium level).
It is not related to hyponatremia or hypertonic solution.
Normal ranges for sodium are 135 to 145 mEq/L and for calcium are 8.5 to 10.5 mg/dL.
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