W-27 (HLA-B27)
WATSON-SCHWARTZ, URINE
WEIL-FELIX (? FOR SPECIFIC TEST)
WELLBUTRIN
WEST NILE AB IGG AND IGM, SERUM
WEST NILE VIRUS ANTIBODY, IGG AND IGM, CSF
WESTERN BLOT, LYME DISEASE
WET MOUNT FOR PARASITES
WET MOUNT FUNGUS, YEAST, TRICHOMONAS(GENITAL SITE)
WHITE CELLS, TRANSFUSION
WHOLE BLOOD, TRANSFUSION
WILSON'S DISEASE