Question

A patient had been shoveling snow from his driveway and fell after feeling dizzy. Two days later, he came to the ER complaining that he had injured his left arm and his chest had been "aching" due to the fall. This 52-year-old patient was significantly overweight and a smoker. The following lab results were reported:

Results	Normal Values
CK (total): 157	34 - 145 IU/L
CK-MB: 3.0	< 3.9% of total CK
LD (total): 503	180 - 360 IU/L
LD1/LD2: 1.0	0.5 – 0.8
Troponin: 1.2	0.0 – 0.5 ng/mL

1. What likely condition do the results indicate (be specific by type)?
2. Which of the above parameters indicates the condition and why?
3. What other blood tests might the physician have ordered to rule out alternative diagnoses?
4. Are there labs that were not included due to the timeline between the patient injury and the arrival at the ER?