Essential Facts on the Go: Internal Medicine (16 page)

III_4_a
Abdominal Pain by the Quadrant

III_4_b
Inflammatory Bowel Disease

Extraintestinal Manifestations of Inflammatory Bowel Disease

NEPHROLOGY

IV_1_a
Acute Kidney Injury

Intrinsic

UNa > 20

(although, early UN can have ↓ UNa)

FeNa > 1%

Fe urea > 30

Urine sediment:

- GN = RBC cast. dysmorphic RBC

- Nephritic syndrome: proteinuria

- AIN: WBC casts, urine eosinophils

- Urine: muddy brown/granular casts

IV_1_b
Acute Kidney Injury

Prerenal

U
_Na
< 20, FeNa < 1%, bland sediment, FeUrea < 30

Volume loss

GI – diarrhea/vomiting

Renal – diuretics

Hemorrhage