Name
SIADH
DESCRIPTION
DETAIL
* SECONDARY ADRENAL INSUFFICIENCY * HYPONATREMIA TYPE I & TYPE II * OCULT LUNG CANCERPLASMA OSMOLALITY - DECREASED URINE OSMOLALITY - INCREASED ( > 300 MICR GM / KG ) WATER LOAD TEST - 20 ML / KG WATER LOAD - 65% EXCRETED IN 4 HRS & 80% EXCRETED IN 5 HRS., LOWEST URINE OSMOLALITY < 100 MICRO GM / KG PLASMA AVP - DETECTABLE EVEN AFTER WATER LOAD IN SIADH PLASMA AVP & URINE AVP UNRELATED TO PLASMA OSMOLALITY. BUN, S. URIC ACID , S. CREATININE ARE LOW C.T. SCAN THORAX- TO RULE OUT OCCULT LUNG CANCER PLASMA CORTISOL LEVELS - TO RULE OUT UNSUSPECTED ADRENAL INSUFFICIENCY RATE OF URINARY SODIUM EXCRETION & PLASMA RENIN ACTIVITY.
TYPENOTES
RELATED DISEASE
Not Available Disease
DISEASE
INVESTIGATION
BLOOD UREA, SERUM CREATININE, SERUM URIC ACID, URINE ROUTINE, BUN, COMPLETE BLOOD COUNT, PLASMA RENIN ANGIOTENSIN, MRI