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A member asked:
Will blood test be normal with siadh?
4 doctors weighed in across 2 answers
Low sodium: Usually the sodium is low. The ADH (vasopressin) keeps water on board and the body is then forced to get rid of it by disposing of sodium which drags water with it.
Answered 6/10/2014
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No, mostly low: Much of the lab (electrolytes, bun, creat and even blood counts) will be low and serum osmolality will be very low, urinary sodium is commonly elevated as is urine osmolality even though you are fluid overloaded.
Answered 3/31/2023
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People also searched for:
My random urine osmolality test was 910 mOsmol/kg. My random urine sodium was 81 mmol/L. My blood sodium levels are low normal. I was well hydrated for these tests. My symptoms are bad muscle cramping with exercise. Is this diagnostic of siadh?
Ive had low sodium blood tests, and high urine sodium. I get really bad muscle cramping. Could this be siadh?
Edema (extreme), headaches, out if breath when walking, fatigue. Blood test ok- has not checked for urine. Siadh?
I have mildly low sodium blood levels. My random urine sodium is 80 mmol/L. Urine osmolality is normal. My symptoms are bad muscle cramping, thirst, and frequent urination. Im not on any medications and I eat a normal diet. Could this be siadh?
Is siadh when you dilute too much blood sodium, and urinate out too much sodium at the same time?
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