Table 1. Lab parameters of the patient.

CEA: carcinoembryonic antigen; mm/hr: millimeter/hour; ng/mL: nanograms/milliliter

Parameter	Patient value	Normal range
Erythrocyte sedimentation rate	80 mm/hr	Male; >70 years: <30 mm/hr
Serum CEA	1.8 ng/mL	0 to 2.5 ng/mL (median level is 3.4 ng/mL in men)