• B Vitamins

  • B-Type Natriuretic Peptide (BNP) Test

  • B-cell Gene Clonality Molecular Genetic Tests

  • B-cell Gene Rearrangement

  • B-cell Immunoglobulin Gene Rearrangement

  • B-type natriuretic peptides

  • B1 (thiamine or thiamin); B2 (riboflavin); B3 (niacin); B5 (pantothenic acid); B6 (pyridoxal phosphate, pyridoxine); B7 (biotin); Vitamins B9 (folate, folic acid) and

  • B12 are also part of the group but are more commonly measured individually and are discussed separately.

  • B27

  • B2M

  • BCGR

  • BCR-ABL

  • BCR-ABL Fusion

  • BCR-ABL Kinase Domain Mutation Analysis

  • BCR/ABL1

  • BChE / BCHE

  • BRCA

  • BRCA-1 and BRCA-2 (Breast Cancer Gene 1 and 2) Tests

  • BUN (Blood Urea Nitrogen) Test

  • Bacterial Wound Culture

  • Beta 2 transferrin

  • Beta 2GP1 Ab

  • Beta Tryptase

  • Beta hCG

  • Beta-2 Glycoprotein 1 Antibodies

  • Beta-2 Microglobulin Kidney Disease

  • Beta-2 Microglobulin Tumour Marker

  • Beta-2 glycoprotein 1 antibodies (IgG, IgM, and very rarely IgA)

  • Beta-hydroxybutyrate

  • Beta-hydroxybutyric acid

  • Beta2 Microglobulin, Serum or Urine

  • Beta2 Microglobulin, Serum, Urine, or CSF

  • Bicarb

  • Bicarbonate

  • Bilirubin

  • Blood Creatinine

  • Blood Culture

  • Blood Film

  • Blood Gas Tests

  • Blood Glucose; Urine Glucose

  • Blood Ketones

  • Blood Typing

  • Blood cholesterol

  • Blood clotting factors

  • Blood glucose

  • Blood lead test

  • Blood sugar

  • Bone Markers

  • Bone Marrow

  • Bone Marrow Aspiration and Biopsy

  • Bone Marrow Aspiration; Bone Marrow Aspirate; Bone Marrow Biopsy; Bone Marrow Trephine Biopsy

  • Bone Marrow Test

  • Bordetella pertussis Culture; Bordetella pertussis by PCR; Bordetella pertussis by DFA; Bordetella pertussis Antibodies, IgA, IgG, IgM

  • Borrelia burgdorferi IgM and IgG antibodies; Borrelia burgdorferi DNA by PCR

  • Brain natriuretic peptide, NT-proBNP, N terminal pro B type natriuretic peptide, natriuretic peptides

  • Breast Cancer Gene 1 and Breast Cancer Gene 2

  • Breast Cancer Susceptibility Genes 1 and 2

  • Butyrylcholinesterase

  • bcr-abl oncogene

  • blood lead level