RA Factor Titer - see Rheumatoid Factor Titer
RA Screen - see Rheumatoid Factor Scn
RA Screen Fluid - see Rheumatoid Factor Scn Fld
Rabies AB Immune Status
Rabies AG - Animal
Raji Cell (Immune Complexes)
Rapid Plasma Reagin - see RPR
Rast Allergen Profile Region VII
Rast Cat Dander
Rast Dog Dander
Rast Milk
RBC Folate
RBC Fragility - see Osmotic Fragility RBC
RBC Morphology
RBC Pellet
Reducing Substance Feces
Reducing Substance Urine
Renal Biopsy
Renal Function Panel
Renin
Respiratory Allergy Profile Region VII
Respiratory Viral Panel by PCR
Retic Count
Retinol - see Vitamin A
Reverse T3
RFP (Renal Function Panel) - see Renal Function Panel
RH Phenotyping
Rheumatoid Factor Scn
Rheumatoid Factor Scn Fld
Rheumatoid Factor Titer 
Rickettsia IgG + IgM Panel - RETIRED; See Rocky Mtn Spotted Fever Ab Panel (R.rickettsii)   
                                                          and Typhus Ab IgG/IgM Panel (R.typhi)
Rickettsia rickettsii Ab, IgG and IgM by IFA
Rickettsia typhi Ab, IgG and IgM by IFA
Risperal - see Risperidone
Risperidone
Ristocetin Cofactor - see Factor VIII Ristocetin Cofact
RNP Ab
Rocky Mountain Spotted Fever Ab Panel
Rotavirus AG
RPR
RSV Rapid Viral Culture
Rubella AB IgG
Rubella Immune Status - see Rubella AB IgG
Rubeola AB IgG
Rubeola Immune Status - see Rubeola AB IgG