hyponatremia Flashcards
1
Q
hyponatremia
A
low sodium concentration
increase in ADH due to a true or sensed decrease in blood volume
2
Q
hyponatremia evaluation
A
1.) urine and serum osmolality
low osmolality with low urine sodium is due to increased fluid intake or decreased salt intake
high urine osmolality
hypovolemic
hypervolemic
euvolemic
3
Q
hypovolemic hyponatremia
A
renin angiotensin release due to volume loss despite low sodium.
low sodium in urine
- vomiting
- diarrhea
high sodium in urine
- diuretic therapy
- renal nephropathies
4
Q
hypervolemic hyponatremia
A
increased total water leading to dilution
low sodium in urine
- heart failure
- renal failure
- liver failure
high sodium in urine
-renal failure
5
Q
euvolemic hyponatremia
A
high urine sodium
SIADH
