Question

blood work reveals elevated creatine phosphokinase. the diagnosis we can give with the most confidence is which of the following?
a) lung cancer
b) myocardial infarction
c) cell damage
d) muscle trauma

Explanation:

Creatine phosphokinase (CPK) is an enzyme found in various tissues, especially muscle (skeletal and cardiac) and brain. Elevated CPK levels are most strongly associated with muscle - related issues. While myocardial infarction (heart muscle damage) can cause CPK elevation (especially CPK - MB isoform), muscle trauma (direct damage to skeletal muscle) is a more straightforward cause of general CPK elevation. Lung cancer is not typically associated with significant CPK elevation. Cell damage is a very broad term, and muscle trauma is a more specific and likely diagnosis based on CPK elevation.

Answer:

d) Muscle trauma