Certified Emergency Nurse (CEN) Practice Test

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What is a common symptom of hyponatremia?

Vomiting

Muscle cramps

Hyponatremia, which is defined as a low sodium concentration in the blood, can lead to various symptoms due to the body's response to the imbalance of electrolytes. Muscle cramps are a common manifestation because sodium plays a crucial role in muscle contraction and nerve function. When sodium levels drop, it can result in abnormal neuromuscular function, leading to cramps or spasms as the body attempts to compensate for the electrolyte deficiency.

While vomiting, severe dehydration, and chest pain can occur in various medical conditions, they are not direct symptoms of hyponatremia specifically. Vomiting may lead to electrolyte imbalances but is not indicative of hyponatremia on its own. Severe dehydration typically involves low fluid levels rather than an electrolyte imbalance, and chest pain is more associated with cardiac or respiratory conditions rather than specifically with dysnatremias.

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Severe dehydration

Chest pain

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