Liver Function Test Without GGT

Function

The Liver Function Test (LFT) without GGT is a panel of blood tests used to evaluate the health and functional capacity of the liver. It typically includes measurements of Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST), Alkaline Phosphatase (ALP), Bilirubin, and Albumin. These enzymes and proteins provide a snapshot of liver cell integrity and the liver's ability to process waste and synthesize essential blood components.

Why it is Ordered

This panel is ordered for routine health screenings, to monitor the side effects of medications known to be hepatotoxic (like statins or NSAIDs), or to investigate symptoms such as jaundice (yellowing of eyes/skin), dark urine, or abdominal pain. Omitting Gamma-Glutamyl Transferase (GGT) is common in standard panels as the other markers often provide sufficient information for general screening, though GGT is more specific for biliary obstruction or alcohol consumption.

Associated Conditions

• Fatty Liver Disease (NAFLD): Often characterized by mild elevations in ALT and AST.
• Hepatitis (Viral or Toxic): Causes significant 'spikes' in liver enzymes due to acute cell death.
• Cirrhosis: Long-term scarring that leads to decreased albumin and increased bilirubin.
• Gallstones: Can cause an increase in ALP and Bilirubin due to bile duct blockage.

Summary

Understanding LFT results requires looking at the pattern of elevations. For example, an ALT much higher than AST often points to liver-specific injury, whereas a high AST/ALT ratio might suggest alcoholic liver disease. Because the liver has massive regenerative capacity, early damage may present with only subtle changes in these markers.