Please enable JavaScript.
Coggle requires JavaScript to display documents.
低血鈉的診斷準則 - Coggle Diagram
低血鈉的診斷準則
測血漿的滲透壓
pseudohyponatremia
Low plasma [Na+]、normal Posm(275~290)
Severe hyperlipidemia (高血脂)
hyperproteinemia (高血漿蛋白)
Post-TURP (Glycine irrigation of bladder):
手術時用純水灌洗膀胱
Low plasma [Na+ ]、increased Posm (>290)
Hyperglycemia
Administration of hypertonic mannitol
真的低血鈉
急性
3% normal saline
慢性
Urine osmolality≦100mOsm/kg
polydipsia(多渴症)
potomania (啤酒過量)
攝取太少鈉
Urine osmolality>100mOsm/kg
Urine sodium concentration≦30mmol/L
ECF 容積增加
heart failure
liver cirrhosis
nephrotic syndrome
有效循環量(Effective Volume)下降,但身體水分其實過多
ECF 容積減少
Diarrhea、vomiting
使用舊式diuretics
Third spacing
Urine sodium concentration>30mmol/L
ECF 容積正常
SIADH
(ADH分泌過多)
次級腎上腺異常
ECF 容積減少
腸胃道的問題(vomiting)
大腦/腎性耗鹽症候群(renal/cerebral salt wasting)
初級腎上腺異常