- Rapid Malaria/Babesia Smear, Varies (Malaria/Babesia Smear)
- Rapid Plasma Reagin Screen Response to Therapy, Serum (RPR Screen, Response to Therapy)
- Red Top, IgE, Serum (Red Top, IgE)
-
Renal Cell Carcinoma (
RCC
) - Renal Function Panel (Kidney Function Panel)
- Renin Activity, Plasma (PRA (Plasma Renin Activity))
- Respiratory Panel-WA,OR,MT,Northern ID (Allergy, Profile, Montana, Washington, Idaho, Oregon, Northwest, Area 16, Area 17, Area 11)
- Reticulocyte Count (Retic)
-
Reticulum Stain (
RETIC
) - Rheumatoid Factor (RF)
- Rice, IgE, Serum (Rice, IgE)
- Rotavirus Antigen, Feces (Rotavirus Ag)
- Rough Marsh Elder, IgE, Serum (Rough Marsh Elder, IgE)
- Rubella, IgG
- Russian Thistle, IgE (Saltwort)
- Rye Grass, IgE, Serum (Rye Grass, IgE)
- Rye, IgE, Serum (Rye, IgE)
