Question

which of the following isoenzymes of creatine phosphokinase would be elevated in a patient with lung cancer? a) cpk - mb b) cpk - mm c) cpk - md d) cpk - bb

Explanation:

Creatine phosphokinase (CPK) has different isoenzymes. CPK - BB is found in brain and some tumors including lung cancer, and its levels can be elevated in patients with lung cancer. CPK - MB is mainly associated with heart muscle, CPK - MM with skeletal muscle, and CPK - MD is not a standard CPK isoenzyme notation.

Answer:

d) CPK - BB