The nurse is collecting data for a patient with acute liver failure. Which of the following laboratory test findings would the nurse recognize as supporting this diagnosis? (Select all that apply.)
a. Elevated prothrombin time
b. Elevated aspartate aminotransferase level (AST)
c. Elevated serum bilirubin level
d. Elevated serum potassium level
e. Elevated alanine aminotransferase level (ALT)
f. Elevated platelet count
ANS: A, B, C, E
AST and ALT are found in high concentrations in liver cells and are released with death of liver cells. Serum bilirubin and urobilinogen may be elevated. In patients with severe hepatitis, prothrombin time may be elevated because the liver can no longer make prothrombin. Glucose, potassium, and platelet counts are not directly affected.
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