(3B)-cholesta-5,7-dien-3-ol B-27 Antigen B27 B-type Natriuretic Peptide Babesia Bacterial Culture Bacterial Vaginosis (BV Yeast) BAL Barbiturates - Urine Barium Bartonella henselae Serology Basic Metabolic Panel B Cell Subsets bcr/abl BCR-ABL1 Transcripts by Quantitative PCR Bence Jones Protein Benedict's Test for Positive Reducing Substances Benzodiazepine Benzodiazepines - Urine Benzol Benzoylecgonine Beryllium Beta-2 Glycoprotein Antibody Beta-2 Microglobulin Beta-Carotene Beta Cross Laps Beta Globulin Beta HCG, Free Beta HCG, Quantitative - Blood Beta HCG, Qualitative - Urine Beta-Hydroxybutyrate BHB Bicarbonate Bicarbonate Content Bile Bile Acids Bilharziasis Bilirubin OD 450 - Amniotic Fluid Bilirubin, Conjugated Bilirubin - Blood Bilirubin - Fluid Bioavailable Testosterone Bioavailable Measured Testosterone Biochemical Genetics Referred-Out Testing Biochemical Screen Biotinidase Bismuth BK Virus Blastomyces Culture Blastomyces Immunodiffusion Bleeding Time Blood Cultures Blood Gas Arterial Blood Gas Arterial Community Blood Gas Capillary Blood Gas Cord Blood Blood Gas Fetal Scalp Blood Gas Venous Blood Group Type Blood Parasites Blood Smear Blood - Urine BLS BMP and CMP BMP BNP Bone Marrow Bone Marrow Examination Bordetella pertussis by PCR Boron Borrelia burgdorferi Serology BRCA1 and BRCA2 Breast CA1 & CA2 Breath Hydrogen Test for Small Bowel Bacterial Overgrowth Bromide Bronchial Alveolar Lavage and Bronchial Wash Brucella Antibody Bruton Tyrosine Kinase Protein Expression BTD BTK Buffy Coat Hematology Bullous Autoimmune Skin Disease Profile Busulfan BW BUN
