A nurse is caring for a client who has hyponatremia and is receiving an infusion of a prescribed hypertonic solution.
Which of the following findings should indicate to the nurse that the treatment is effective?
Improved cognition.
Cardiac arrhythmias absent.
Decreased vomiting.
Absent Chvostek’s sign.
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is B
Explanation
Hot flashes are a common side effect of tamoxifen, which is hormone therapy for breast cancer that blocks the action of estrogen.
Tamoxifen can cause menopause-like symptoms in women, such as irregular or missing periods, vaginal discharge or bleeding, and mood changes. Choice A is wrong because tinnitus (ringing in the ears) is not a known side effect of tamoxifen.
Choice C is wrong because urinary frequency (needing to urinate more often) is not a known side effect of tamoxifen.
Choice D is wrong because constipation (difficulty passing stools) is not a known side effect of tamoxifen.
Correct Answer is A
Explanation
An aPTT of 90 seconds is much higher than the normal range of 30-40 seconds, which means the blood takes longer to clot and the client is at risk of bleeding. An increased pulse rate is a sign of blood loss and shock.
Choice B is wrong because increased blood pressure is not a sign of bleeding, but rather a sign of hypertension or stress.
Choice C is wrong because decreased temperature is not a sign of bleeding, but rather a sign of hypothermia or infection.
Choice D is wrong because decreased respiratory rate is not a sign of bleeding, but rather a sign of respiratory depression or sedation.
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