Final answer:
Elevated alkaline phosphatase (alk phos) with normal gamma glutamyl transpeptidase (GGT) and normal calcium (Ca) levels can indicate several conditions related to the liver.
Step-by-step explanation:
Elevated alkaline phosphatase (alk phos) with normal gamma glutamyl transpeptidase (GGT) and normal calcium (Ca) levels can indicate several conditions related to the liver. Elevated alk phos is often seen in acute liver damage, but it is not specific to the liver as it is also present in red cells and muscles. The AST to ALT ratio can be helpful in differentiating between causes of liver damage. Alk phos is also higher in growing children and elderly patients with Paget's disease due to its presence in bone and placental tissue.