## Clinical Diagnosis This patient has **acute hepatitis A** (Anti-HAV IgM positive, negative HBc, no biliary symptoms). The markedly elevated transaminases, mild-to-moderate hyperbilirubinemia, and normal INR indicate acute hepatitis with preserved synthetic function. ## Management Approach for Acute Hepatitis A **Key Point:** Acute hepatitis A is self-limited in immunocompetent adults. Management is supportive; no antiviral therapy is indicated unless fulminant hepatic failure develops. **High-Yield:** The normal INR (1.2) indicates preserved synthetic function and rules out fulminant hepatic failure at presentation. This is the critical finding that determines management. ### Rationale for Correct Answer 1. **Admission criteria met:** Jaundice, elevated bilirubin, and need for daily monitoring of coagulation and bilirubin trends. 2. **Supportive care:** Fluid management, nutritional support, rest. 3. **Monitoring:** Daily INR and bilirubin to detect early signs of fulminant hepatic failure (rising INR despite falling bilirubin = poor prognostic sign). 4. **Counseling:** Fecal–oral transmission; contact precautions essential in household and healthcare settings. 5. **Prognosis:** >95% of immunocompetent adults recover fully within 3–6 months. **Clinical Pearl:** In acute hepatitis A, the degree of aminotransferase elevation does NOT correlate with prognosis. The **INR and encephalopathy** are the true markers of severity. ## Why Imaging and Antiviral Are Not Indicated - **No biliary obstruction pattern:** Bilirubin is elevated but ALT/AST are disproportionately high (hepatocellular pattern, not obstructive). - **No indication for antivirals:** Antivirals (sofosbuvir, ribavirin) are NOT standard for acute HAV; they are reserved for fulminant hepatic failure in select cases. - **Ursodeoxycholic acid:** Not indicated in acute hepatitis; no evidence of benefit. ## Monitoring Parameters During Admission | Parameter | Frequency | Action if Abnormal | |-----------|-----------|-------------------| | INR | Daily | Rising INR = sign of fulminant failure; consider ICU transfer, N-acetylcysteine, transplant evaluation | | Bilirubin | Daily | Falling INR + rising bilirubin = good sign (recovery phase) | | Encephalopathy | Clinical exam q4–6h | Presence = fulminant hepatic failure | | Albumin | Every 2–3 days | Falling albumin = worsening synthetic function | **Mnemonic — Signs of Fulminant Hepatic Failure in Acute Hepatitis:** **ENCEPHALOPATHY** (Encephalopathy, coagulopathy [INR >1.5], jaundice <7 days before encephalopathy).
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