Lab Report Interpretation - Mst. Arnav (Age 6, Male)

HAEMATOLOGY

• Mild anaemia - Hb 12.7 is below the normal range for age (note: the lab's reference range appears set for adults; for a 6-year-old, normal Hb is ~11.5-13.5 g/dL, so this is borderline low but mild).
• Leukopenia (low WBC) - TLC of 4,800 is below the lab's reference range. In the context of liver disease/viral illness, this is common and expected - many hepatotropic viruses (Hepatitis A, EBV, etc.) cause leukopenia.
• Differential (DLC) is otherwise normal - no left shift, no atypical counts.

LIVER FUNCTION TESTS (LFT) - CRITICAL FINDINGS

Clinical Interpretation

• Values this high (20-30x upper limit of normal) are the hallmark of acute hepatitis - most commonly viral hepatitis (Hepatitis A is the #1 cause in a 6-year-old in India).
• Other causes include Hepatitis E, EBV (infectious mononucleosis), CMV, or drug/toxin-induced liver injury.
• AST slightly higher than ALT (AST:ALT ratio ~1.16) - consistent with viral hepatitis (an AST:ALT ratio >2 would suggest alcoholic hepatitis, not relevant here).

• Both conjugated (direct) AND unconjugated (indirect) bilirubin are elevated.
• The predominant fraction is conjugated (direct) bilirubin (4.01 out of 6.44 mg/dL = ~62%) - this is the pattern of hepatocellular jaundice, where damaged hepatocytes cannot excrete conjugated bilirubin into bile, causing it to back up into the blood.
• Total bilirubin of 6.44 mg/dL = clinically visible jaundice (jaundice appears at >2.5-3 mg/dL).

• ALP elevation in the context of acute hepatitis can reflect intrahepatic cholestasis (bile stasis).
• In children, ALP can also be elevated from bone growth, but the degree here in this clinical context suggests hepatic origin.

• Liver synthetic function is preserved - a reassuring sign that this is likely an acute, not chronic, process. The liver still has adequate synthetic capacity.

• Fits with a viral aetiology - viruses like Hepatitis A, EBV suppress white cell production or cause peripheral destruction.

Most Likely Diagnosis

Acute Viral Hepatitis in a 6-year-old - Hepatitis A is the most probable cause given the age, likely faeco-oral exposure, and this classic biochemical pattern in India.

Urgent Recommendations

1. Hepatitis A IgM antibody - to confirm Hepatitis A (most likely)
2. Hepatitis E IgM antibody - to rule out Hep E
3. EBV/CMV serology - if Hep A/E negative
4. Prothrombin Time (PT/INR) - to assess liver synthetic function and rule out acute liver failure
5. Serum Albumin - further assessment of liver function
6. Repeat LFTs in 3-7 days - to monitor trend (improving vs worsening)
7. Watch for signs of acute liver failure: worsening jaundice, confusion/drowsiness (encephalopathy), bleeding, dark urine - these require emergency hospitalisation

• Adequate rest and hydration
• Avoid hepatotoxic drugs (paracetamol at usual doses is generally safe, but NSAIDs should be avoided)
• Avoid fatty foods
• No alcohol (not relevant at age 6, but household medicines/herbal remedies should be reviewed)
• Hepatitis A is self-limiting in most children and resolves in 4-8 weeks

Disclaimer: This interpretation is for informational purposes only and does not replace a physician's evaluation. The child should be seen by a paediatrician or gastroenterologist urgently given the degree of liver enzyme elevation.