(3B)-cholesta-5,7-dien-3-ol B-27 Antigen B15:02 HLA, Carbamazepine HS, Asians B27 B27 for Ankylosing Spondylitis B51 HLA for Behcet Disease B57:01 HLA for Abacavir HS B58:01 HLA for Allopurinol HS B-type Natriuretic Peptide Babesia Bacterial Culture Bacterial Vaginosis (BV Yeast) BAL Barbiturates - Urine Barium Bartonella henselae Serology Basic Metabolic Profile B Cell Subsets bcr/abl BCR-ABL1 Transcripts by Quantitative PCR Behcet Disease 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-Galactosidase Beta Globulin Beta-Glucosidase Beta HCG, Free Beta HCG, Qualitative - Urine Beta HCG, Quantitative - Blood Beta-Hydroxybutyrate Beta-Mannosidase BHB BHLA ABS Bicarbonate Bicarbonate Content Bile Bile Acids Bilharziasis Bilirubin, Conjugated Bilirubin - Blood Bilirubin - Fluid Bioavailable Testosterone Bioavailable Measured Testosterone Biochemical Genetics Referred-Out Testing Biochemical Screen Biotinidase Birdshot Bismuth BK Virus Blastomyces Culture Blastomyces dermatitis Serology Blastomyces ID Blastomyces Immunodiffusion Blastomyces Serology 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 Donor Typing - Cord Blood Sample Bone Marrow Donor Typing - Non-Sibling Bone Marrow Donor Typing - Sibling Bone Marrow Donor Typing - Verification Bone Marrow Examination Bone Marrow Recipient Typing Bone Marrow Recipient Typing - High Resolution Bone Marrow Recipient Typing - Verification Bordatella pertussis Nucleic Acid Test Bordetella pertussis PCR Boron Borrelia afzelii Serology Borrelia burgdorferi Serology Borrelia garinii 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
