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
Related Questions
Correct Answer is C
Explanation
Clozapine is an antipsychotic medication that is used to treat schizophrenia and other psychotic disorders. It works by affecting the balance of certain chemicals in the brain.
Choice A is wrong because clozapine can cause weight gain, not weight loss, in some people. This can increase the risk of diabetes, high cholesterol, and heart problems. The nurse should advise the client to monitor their weight regularly and to follow a healthy diet and exercise plan.
Choice B is wrong because ringing in the ears (tinnitus) is not an expected adverse effect of clozapine. However, clozapine can cause other ear problems, such as otitis media (middle ear infection) or otitis externa (outer ear infection). The nurse should instruct the client to report any ear pain, discharge, or hearing loss to their provider.
Choice D is wrong because diarrhoea is not a common adverse effect of clozapine. However, clozapine can cause constipation, which can be severe and lead to bowel obstruction or perforation. The nurse should advise the client to drink plenty of fluids, eat high-fibre foods, and use laxatives as prescribed by their provider.
Choice C is correct because fever is a serious adverse effect of clozapine that may indicate a life-threatening condition called
agranulocytosis. Agranulocytosis is a severe reduction in white blood cells that can impair the immune system and increase the risk of infections. The nurse should instruct the client to notify their provider immediately if they develop a fever or any signs of infection, such as sore throat, cough, or flu-like symptoms. The client should also have regular blood tests to monitor their white blood cell count while taking clozapine.
Correct Answer is A
Explanation
The correct sequence for mixing regular insulin and NPH insulin in the same syringe is important to ensure proper dosing. The nurse should follow these steps:
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Inject air into the NPH (intermediate-acting) insulin vial: Injecting air into the NPH vial first helps to equalize the pressure in the vial, making it easier to withdraw the insulin later. This step is done first to avoid contaminating the regular insulin vial with NPH insulin.
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Inject air into the regular insulin vial: Next, inject an amount of air equal to the intended regular insulin dose into the regular insulin vial.This also helps to equalize the pressure and makes it easier to withdraw the insulin.
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Withdraw the regular insulin from the vial: The nurse should withdraw the regular insulin first because it is clear and not contaminated. This prevents any NPH insulin from mixing into the regular insulin vial.
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Withdraw the regular insulin from the vial: Finally, the nurse withdraws the NPH insulin. Since the regular insulin has already been drawn up, there is no risk of contaminating the regular insulin with NPH insulin.
This sequence ensures that you don't contaminate the vials, and you accurately withdraw the appropriate doses of each insulin type.
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