Management of Elevated Liver Enzymes with Acidosis

Immediate Assessment and Critical Actions

The American College of Physicians recommends obtaining arterial blood gas to confirm metabolic acidosis and assess pH in patients with elevated liver enzymes and acidosis 1
The Infectious Diseases Society of America suggests measuring venous lactate level immediately, as lactic acidosis can present with elevated liver enzymes and normal lipase 1
If lactate is 2-5 mmol/L, close monitoring is required; if >5 mmol/L with acidosis, this represents a medical emergency requiring immediate intervention, according to the Clinical Infectious Diseases guidelines 1
The Hepatology society recommends checking for hepatic steatosis via ultrasound, as serum transaminase abnormalities are common with lactic acidosis due to associated fatty liver 1
Consider fatty acid oxidation defects (FAOD), which present with hypoketotic hypoglycemia, acute metabolic acidosis, and liver dysfunction without pancreatitis, as suggested by the Hepatology guidelines 2

The Clinical Infectious Diseases guidelines recommend repeat lactate measurement if initial value is abnormal to confirm trend 1
Check serum glucose, as hypoglycemia with acidosis suggests FAOD, according to the Hepatology society 2

Discontinue all NRTIs or other medications causing mitochondrial toxicity immediately if lactic acidosis is confirmed, as recommended by the Clinical Infectious Diseases guidelines 1
Provide supportive care with close monitoring in intensive care setting if pH is significantly abnormal, according to the Clinical Infectious Diseases guidelines 1
First-line therapy for FAOD is dietary management and intravenous glucose administration, as suggested by the Hepatology guidelines 2

Refer immediately to hepatology or gastroenterology if ALT >8× ULN or >5× baseline in those with elevated baseline, or if ALT >3× ULN with total bilirubin >2× ULN, according to the Praxis Medical Insights guidelines 4
Refer immediately if there is evidence of synthetic dysfunction, persistent or worsening acidosis despite initial management, or suspected FAOD with recurrent episodes requiring consideration of liver transplantation, as recommended by the Clinical Infectious Diseases and Hepatology guidelines 1, 2