| FFN | FFN - Fetal Fibronectin WI Hospital - Chemistry | 
      
        | TFH | FH Mutation Analysis, Next-Generation Sequencing, Tumor Mayo Clinic Laboratories in Rochester | 
      
        | FDP | Fibrin Split Products (FSP) WI Hospital - Hematology | 
      
        | Fibrinogen | Fibrinogen WI Hospital - Hematology | 
      
        | CULFB | Fibroblast Culture for Biochemical or Molecular Testing, Chorionic Villi/Products of Conception/Tissue Mayo Clinic Laboratories in Rochester | 
      
        | 23FBG | Fibroblast Growth Factor-23 (FGF23), In Situ Hybridization Mayo Clinic Laboratories in Rochester | 
      
        | MSFNG | Fibronectin Glomerulopathy Confirmation, Mass Spectrometry Mayo Clinic Laboratories in Rochester | 
      
        | FIBRO | FibroTest-ActiTest, Serum Mayo Clinic Laboratories in Rochester | 
      
        | FLEC | Flecainide, Serum Mayo Clinic Laboratories in Rochester | 
      
        | Quest 18886 | Flunitrazepam Qn Urine Quest Diagnostics | 
      
        | FLUOX | Fluoxetine, Serum Mayo Clinic Laboratories in Rochester | 
      
        | PROLX | Fluphenazine (Prolixin), Serum Medtox Laboratories, Inc. | 
      
        | FFLUR | Flurazepam (Dalmane) and Desalkylflurazepam Medtox Laboratories, Inc. | 
      
        | RFSGS | Focal Segmental Glomerulosclerosis (FSGS) and Nephrotic Syndrome Gene Panel, Varies Mayo Clinic Laboratories in Rochester | 
      
        | ADPKP | Focused Autosomal Dominant Polycystic Kidney Disease Gene Panel, Varies Mayo Clinic Laboratories in Rochester | 
      
        | Folate | Folate Level WI Hospital - Chemistry | 
      
        | AFOLR | Folate Receptor Alpha (FOLR1), Semi-Quantitative Immunohistochemistry, Manual Mayo Clinic Laboratories in Rochester | 
      
        | XL2T | FOXL2 Mutation Analysis, Next-Generation Sequencing, Tumor Mayo Clinic Laboratories in Rochester | 
      
        | FXS | Fragile X Syndrome, Molecular Analysis, Varies Mayo Clinic Laboratories in Rochester | 
      
        | TULAB | Francisella tularensis Antibody, IgM and IgG, ELISA, Serum Mayo Clinic Laboratories in Rochester | 
      
        | FT3 | Free T3 WI Hospital - Chemistry | 
      
        | FT4 | Free T4 WI Hospital - Chemistry | 
      
        | AFXN | Friedreich Ataxia, Repeat Expansion Analysis, Varies Mayo Clinic Laboratories in Rochester | 
      
        | FRUCT | Fructosamine, Serum Mayo Clinic Laboratories in Rochester | 
      
        | FSH | FSH - Follicle Stimulating Hormone WI Hospital - Medical Screening and Special Testing |