A member asked:

My hematocrit is 53 and my hemoglobin is 18, hemoconcentration. my blood sodium has been 133-135. my random urine sodium is 80 mmol/l. random urine osmolality is in 900. my symptoms are chronic muscle cramping. is this hypovolemic hyponatremia?

A doctor has provided 1 answer
Dr. Hiep Le answered

Specializes in Nephrology and Dialysis

Serum sodium should be high (hypernatremia) when blood is concentrated and urine sodium should be below 20 mmol/L when volume is low (hypovolemia). With the given info, I'm afraid that you may have 2 separate conditions, # 1 erythrocytosis (high altitude, chronic lung disease, high erythropoietin, etc.) and #2 problem with diluting the urine such as SIADH. You should see a nephrologist. Good luck.

Answered 7/7/2023

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