| WALN | Walnut Tree, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | BLWX | Walnut-Food Components, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | BLW | Walnut-Food, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WSPV | Wasp Venom, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WMEL | Watermelon, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WRW | Western Ragweed, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | KOH Prep | Wet Prep for Trichomonas vaginalis Charleston Area Medical Center, Inc. | 
      
        | WHT | Wheat, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WHEY | Whey, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | ASHW | White Ash, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | BENW | White Bean, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WBC | White Blood Cell Count (WBC) Charleston Area Medical Center, Inc. | 
      
        | WFHV | White Faced Hornet Venom, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WHIC | White Hickory, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WPIN | White Pine, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | POTA | White Potato, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | SC018 | Whole Blood Mayo Clinic Laboratories in Rochester | 
      
        | WEGG | Whole Egg, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WESR | Whole Exome Sequencing Reanalysis, Varies Mayo Clinic Laboratories in Rochester | 
      
        | WGSDX | Whole Genome Sequencing for Hereditary Disorders, Varies Mayo Clinic Laboratories in Rochester | 
      
        | WRGR | Wild Rye Grass, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WILL | Willow, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WORM | Wormwood, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | C Wound | Wound Culture  Charleston Area Medical Center, Inc. |