In the normal human body, certain feedback mechanisms prevent the pituitary from producing ADH when the patient is well hydrated. This encourages urination. However, in a patient with SIADH, the hormone is produced continuously no matter what the level of hydration. Initial symptoms are prosaic - nausea, headache and vomiting. However, as the condition progresses, the patient can suffer convulsions and coma.
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| - In the normal human body, certain feedback mechanisms prevent the pituitary from producing ADH when the patient is well hydrated. This encourages urination. However, in a patient with SIADH, the hormone is produced continuously no matter what the level of hydration. Initial symptoms are prosaic - nausea, headache and vomiting. However, as the condition progresses, the patient can suffer convulsions and coma.
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mortalityrate
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symptom
| - Failure to urinate, fluid buildup in the blood
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Type
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treatment
| - Treatment of underlying cause, fluid restriction
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Cause
| - Excess production of the hormone that discourages urination
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abstract
| - In the normal human body, certain feedback mechanisms prevent the pituitary from producing ADH when the patient is well hydrated. This encourages urination. However, in a patient with SIADH, the hormone is produced continuously no matter what the level of hydration. Initial symptoms are prosaic - nausea, headache and vomiting. However, as the condition progresses, the patient can suffer convulsions and coma. SIADH can be diagnosed by blood tests which will show a combination of low sodium levels and high blood volume with low relative red blood cell volume. The patient will show no sign of edema or high blood pressure usually associated with other conditions that cause fluid buildup, such as kidney failure. Once SIADH is diagnosed, fluid intake should be severely restricted. SIADH is caused by many underlying conditions and treating the underlying condition will usually relieve the condition.
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