Question: A 58 year old man had an argument with a co-worker and begins to feel chest pain. The pain subsided and the next day was feeling weak and fatigued. He went to the ER and upon physical exam nothing abnormal was noted. The physician ordered an EKG and some lab tests. The lab results are as follows: (5 pts) CK 220 U/L (15-160 U/L) LD 195 U/L (100-225 U/L) CK-M B 15 U/L (<10 U/L) AST 57 U/L (5-30 U/L) ALT 24 U/L (6-37 U/L)
a. What tests are abnormal?
b. From results given, what is probable diagnosis?
c. Does the LD value correspond with the diagnosis? Why or why not?
d. Assuming the patient remains stable for the next couple of days, what might you expect the LD value to be in two days? The CK value?
e. If the patient's LD value two days later was 302 U/L. What might his LD isoenzyme pattern look like?