| B Cell Lymphoma FISH |
| Babesia Microti IgG / IgM Antibodies |
| Bacterial Vaginosis |
| Bahia Grass |
| Banana |
| Barbituate Screen, Blood |
| Barbiturates Confirmation, Urine |
| Barbiturates, Urine |
| Barley |
| Bartonelle DNA PCR |
| Basophil Absolute Differential |
| BCR/ABL p190 Quantitative PCR |
| BCR/ABL p210 Quantitative PCR |
| BCR/ABL RNA Quantitative PCR |
| BCR/ABL TKI Resistance |
| Beech, American |
| Beef |
| Bence Jones Protein, Quantitative, 24 Hour Urine |
| Bence Jones, Random Urine |
| Bent Grass |
