Ascites fluid total protein (AFTP)
- <2.5 (Pre- & Intrahepatic)
- ≥2.5 (Post-hepatic)
- useful when SAAG ≥1.1 to →
- distinguish cirrhosis (AFTP <2.5 g/dL) ← from
- Ascitic protein <2.5 g/dL
- Cirrhosis
- Late Budd-Chiari syndrome
- Massive liver metastases
- cardiac ascites (AFTP ≥2.5 g/dL).
- Low AFTP (<1 g/dL) assoc. w/ ↑ risk of SBP (see “Cirrhosis” for guidelines on SBP Ppx based on AFTP).
- I Heart failure/constrictive pericarditis
- Early Budd-Chiari syndrome
- IVC obstruction, SVC syndrome
- Sinusoidal obstruction syndrome