| LBCS | Labile Bound Copper, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LACO | Lacosamide, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LDH | Lactate Dehydrogenase FMH Laboratory | 
      
        | LDBF | Lactate Dehydrogenase (LDH), Body Fluid Mayo Clinic Laboratories in Rochester | 
      
        | LDHBF | Lactate Dehydrogenase Body Fluid FMH Laboratory | 
      
        | LAPYP | Lactate Pyruvate Panel, Plasma Mayo Clinic Laboratories in Rochester | 
      
        | LAC | Lactic Acid FMH Laboratory | 
      
        | LASF1 | Lactic Acid, Spinal Fluid Mayo Clinic Laboratories in Rochester | 
      
        | FLACF | Lactoferrin, Fecal by ELISA ARUP Laboratories | 
      
        | FLACQ | Lactoferrin, Quantitative, Stool Quest Diagnostics Nichols Institute | 
      
        | LAMB | Lamb, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LAMQ | Lamb's Quarter, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LAMO | Lamotrigine, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LATX | Latex, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | PBOU | Lead Occupational Exposure, Random, Urine Mayo Clinic Laboratories in Rochester | 
      
        | PBUOE | Lead Occupational Exposure, Random, Urine Mayo Clinic Laboratories in Rochester | 
      
        | PBPFD | Lead Profile Occupational Exposure, Blood Mayo Clinic Laboratories in Rochester | 
      
        | PBDC | Lead, Capillary, with Demographics, Blood Mayo Clinic Laboratories in Rochester | 
      
        | PBDV | Lead, Venous, with Demographics, Blood Mayo Clinic Laboratories in Rochester | 
      
        | PBUCR | Lead/Creatinine Ratio, Random, Urine Mayo Clinic Laboratories in Rochester | 
      
        | PBCU | Lead/Creatinine Ratio, Urine Mayo Clinic Laboratories in Rochester | 
      
        | LAGU | Legionella Antigen, Random, Urine Mayo Clinic Laboratories in Rochester | 
      
        | SLEG | Legionella pneumophila (Legionnaires Disease), Antibody, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LEGRP | Legionella species, Molecular Detection, PCR, Varies Mayo Clinic Laboratories in Rochester | 
      
        | LEM | Lemon, IgE, Serum Mayo Clinic Laboratories in Rochester |