4.) The patient is showing the fight-or-flight response Show (The adrenal medulla secretes epinephrine and norepinephrine. These two hormones are released in response to stress or threat to life. They facilitate what is referred to as the physiologic stress response, also known as the fight-or-flight response. Many organs respond to the release of epinephrine and norepinephrine. Responses include increased blood pressure and pulse rate, dilation of the pupils, constriction of blood vessels, bronchodilation, and decreased peristalsis. The client does not demonstrate the signs of infection, dehydration, or hypertensive crisis.) What endocrine disorder can cause hyponatremia?Hyponatremia is a common electrolyte abnormality with the potential for significant morbidity and mortality. Endocrine disorders, including adrenal deficiency and hypothyroidism, are uncommon causes of hyponatremia.
What causes hyponatremia in SIADH?The syndrome of inappropriate secretion of antidiuretic hormone (SIADH) is a disorder of impaired water excretion caused by the inability to suppress the secretion of antidiuretic hormone (ADH) [1]. If water intake exceeds the reduced urine output, the ensuing water retention leads to the development of hyponatremia.
How does SIADH cause euvolemic hyponatremia?Hyponatremia is mediated initially by ADH-induced water retention that results in volume expansion which activities secondary natriuretic mechanisms causing sodium and water loss and restoration of euvolemia. This euvolemia should not be confused with normal water content of the body.
Does SIADH cause fluid overload?It is most commonly a syndrome of inappropriate antidiuretic hormone (SIADH) and is associated with elevated arginine vasopressin (AVP) release. Hypervolemic hyponatremia is generally the result of fluid overload associated with raised AVP secretion, advanced liver cirrhosis, renal disease, or congestive heart failure.
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Which of the following endocrine disorder causes the patient to have dilutional hyponatremia?
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