Oliguria
🚨 Life-Threatening — exclude first
If suspected, escalate now.
Septic Shock
Obstructive Uropathy with AKI
Severe AKI with hyperkalaemia
Hypovolaemic Shock / Haemorrhage
🚨
Dangerous Causes Causes
Septic ShockObstructive UropathySevere AKIHaemorrhagic Shock
💧
Pre-Renal Causes
DehydrationHypovolaemia / HaemorrhageHeart FailureSepsisHepatorenal Syndrome
🫘
Renal Causes
Acute Tubular NecrosisGlomerulonephritisInterstitial NephritisNephrotoxic Drugs
🚽
Post-Renal Causes
Urinary RetentionBlocked CatheterBilateral Ureteric ObstructionProstatic Obstruction