Syndrome of inappropriate antidiuretic hormone laboratory findings: Difference between revisions
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==Overview== | ==Overview== | ||
Laboratory findings which are helpful in diagnosing [[SIADH]] include, serum [[electrolytes]], especially[[ sodium]], [[BUN]], [[creatinine]], [[glucose]] levels, and [[osmolality]]. Laboratory findings in patients with[[ syndrome of inappropriate antidiuretic hormone]] may show [[hyponatremia]] ([[sodium]] <135 mEq/L) and low serum [[osmolality]] (<280 mOsm/kg). Patients with syndrome of inappropriate antidiuretic hormone show elevated urinary [[sodium]] level (>20 mmol/L) and urine [[osmolality ]] (generally >100 mOsm/L). Patients with SIADH also have low | [[Laboratory]] findings which are helpful in diagnosing [[SIADH]] include, serum [[electrolytes]], especially[[ sodium]], [[BUN]], [[creatinine]], [[glucose]] levels, and [[osmolality]]. Laboratory findings in patients with[[ syndrome of inappropriate antidiuretic hormone]] may show [[hyponatremia]] ([[sodium]] <135 mEq/L) and low serum [[osmolality]] (<280 mOsm/kg). Patients with syndrome of inappropriate antidiuretic hormone show elevated urinary [[sodium]] level (>20 mmol/L) and urine [[osmolality ]] (generally >100 mOsm/L). Patients with SIADH also have low | ||
[[BUN]], normal [[creatinine]], [[hypouricemia]] and [[hypoalbuminemia]] | [[BUN]], normal [[creatinine]], [[hypouricemia]] and [[hypoalbuminemia]] | ||
==Laboratory Findings== | ==Laboratory Findings== | ||
[[ | [[Laboratory]] findings consistent with the [[diagnosis]] of [[SIADH]] are; | ||
*[[Hyponatremia]](<135 meq/l) | *[[Hyponatremia]](<135 meq/l) |
Revision as of 12:48, 31 August 2017
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vindhya BellamKonda, M.B.B.S [2]
Overview
Laboratory findings which are helpful in diagnosing SIADH include, serum electrolytes, especiallysodium, BUN, creatinine, glucose levels, and osmolality. Laboratory findings in patients withsyndrome of inappropriate antidiuretic hormone may show hyponatremia (sodium <135 mEq/L) and low serum osmolality (<280 mOsm/kg). Patients with syndrome of inappropriate antidiuretic hormone show elevated urinary sodium level (>20 mmol/L) and urine osmolality (generally >100 mOsm/L). Patients with SIADH also have low BUN, normal creatinine, hypouricemia and hypoalbuminemia
Laboratory Findings
Laboratory findings consistent with the diagnosis of SIADH are;
- Hyponatremia(<135 meq/l)
- Hypoosmolality(<280mosm/kg)
- Low BUN levels
- Hypoalbuminemia
- Hypouricemia
- NormalCreatinine
- Normal thyroid hormones
- Normalcortisol
- Increased GFR
- Increased plasma ADH levels[1]