| CPR | C-Peptide, Serum Mayo Clinic Laboratories in Rochester | 
      
        | CRP | C-Reactive Protein CCH LABORATORY | 
      
        | HSCRP | C-Reactive Protein, High Sensitivity, Serum Mayo Clinic Laboratories in Rochester | 
      
        | C1ES | C1 Esterase Inhibitor Antigen, Serum Mayo Clinic Laboratories in Rochester | 
      
        | C2 | C2 Complement, Functional, with Reflex, Serum Mayo Clinic Laboratories in Rochester | 
      
        | FC4AL | C4 Level by RIA National Jewish Health | 
      
        | C8FX | C8 Complement, Functional, Serum Mayo Clinic Laboratories in Rochester | 
      
        | CDB | Cadmium, Blood Mayo Clinic Laboratories in Rochester | 
      
        | CATN | Calcitonin, Serum Mayo Clinic Laboratories in Rochester | 
      
        | CA | Calcium Level CCH LABORATORY | 
      
        | CALU | Calcium, 24 Hour, Urine Mayo Clinic Laboratories in Rochester | 
      
        | CAI | Calcium, Ionized CCH LABORATORY | 
      
        | CACR3 | Calcium/Creatinine Ratio, Random, Urine Mayo Clinic Laboratories in Rochester | 
      
        | CALPR | Calprotectin, Feces Mayo Clinic Laboratories in Rochester | 
      
        | CALR | CALR Mutation Analysis, Myeloproliferative Neoplasm (MPN), Varies Mayo Clinic Laboratories in Rochester | 
      
        | CA25 | Cancer Antigen 125 (CA 125), Serum Mayo Clinic Laboratories in Rochester | 
      
        | CA153 | Cancer Antigen 15-3 (CA 15-3), Serum Mayo Clinic Laboratories in Rochester | 
      
        | FCANG | Candida albicans IgG Eurofins Viracor | 
      
        | CBG | Capillary Blood Gas CCH LABORATORY | 
      
        | CARB | Carbamazepine (Tegretol) Level CCH LABORATORY | 
      
        | CARBG | Carbamazepine-10,11-Epoxide, Serum Mayo Clinic Laboratories in Rochester | 
      
        | CA19 | Carbohydrate Antigen 19-9 (CA 19-9), Serum Mayo Clinic Laboratories in Rochester | 
      
        | CDG | Carbohydrate Deficient Transferrin for Congenital Disorders of Glycosylation, Serum Mayo Clinic Laboratories in Rochester | 
      
        | CDTA | Carbohydrate Deficient Transferrin, Adult, Serum Mayo Clinic Laboratories in Rochester | 
      
        | CHOU | Carbohydrate, Urine Mayo Clinic Laboratories in Rochester |