| Bisphosphoglycerate mutase | Red Blood Cells | Chemistry - non-challenge | LP382861-5 | 1 |
| Bite cells | LP14567-9 | 1 |
| Bite cells | Blood | Hematology and Cell counts | LP393400-9 | 1 |
| Bladder cells | LP15196-6 | 1 |
| Bladder cells | Urine sediment | Urinalysis | LP402465-1 | 1 |
| Bleeding time | LP15045-5 | 1 |
| Bleeding time | Patient | Coagulation | LP394250-7 | 1 |
| Blister cells | LP14568-7 | 1 |
| Blister cells | Blood | Hematology and Cell counts | LP393402-5 | 1 |
| Blood group antibodies | Serum or Plasma | Blood bank | LP444742-3 | 1 |
| Blood group antibody investigation | LP67165-8 | 1 |
| Blood group antibody investigation | Plasma or RBC | Blood bank | LP398976-3 | 1 |
| Blood smear finding | Blood | Hematology and Cell counts | LP393370-4 | 1 |
| Body height | LP64598-3 | 1 |
| Body height (length) | LP29699-3 | 1 |
| Body height | Patient | General body height (length) | LP415671-9 | 1 |
| Body weight | LP65139-5 | 1 |
| Body weight | LP29703-3 | 1 |
| Body weight | Patient | General body weight | LP415675-0 | 1 |
| Bordetella pertussis | Nasopharynx | Microbiology | LP374183-4 | 1 |
| Borrelia burgdorferi | LP14087-8 | 1 |
| Borrelia burgdorferi | XXX | Microbiology | LP374219-6 | 1 |
| Borrelia sp | LP14436-7 | 1 |
| Branched chain keto-acid dehydrogenase complex | LP30840-0 | 1 |
| Branched chain keto-acid dehydrogenase complex | DBS | Chemistry - non-challenge | LP385743-2 | 1 |
| Bronchodilators | LP31460-6 | 1 |
| Buprenorphine | LP16054-6 | 1 |
| Buprenorphine | Urine | Drug toxicology | LP389832-9 | 1 |
| Burr cells | LP17676-5 | 1 |
| Burr cells | Blood | Hematology and Cell counts | LP393403-3 | 1 |
| Butyrylcarnitine (C4) | LP19304-2 | 1 |
| Butyrylcarnitine (C4) | Serum or Plasma | Chemistry - non-challenge | LP381602-4 | 1 |
| C peptide | LP15454-9 | 1 |
| C peptide | Serum or Plasma | Chemistry - non-challenge | LP385487-6 | 1 |
| Cabot rings | LP15198-2 | 1 |
| Cabot rings | Blood | Hematology and Cell counts | LP393387-8 | 1 |
| Cadmium | LP16810-1 | 1 |
| Cadmium | Blood | Drug toxicology | LP388214-1 | 1 |
| Caffeine | LP16057-9 | 1 |
| Caffeine | Serum or Plasma | Drug toxicology | LP389344-5 | 1 |
| Calcidiol and Calciferol | LP64677-5 | 1 |
| Calcidiol and Calciferol | Serum or Plasma | Chemistry - non-challenge | LP416973-8 | 1 |
| Calciferol | LP15553-8 | 1 |
| Calciferol | Serum or Plasma | Chemistry - non-challenge | LP385192-2 | 1 |
| Calcitonin | LP14649-5 | 1 |
| Calcitonin | Serum or Plasma | Chemistry - non-challenge | LP381195-9 | 1 |
| Calcitriol | LP15277-4 | 1 |
| Calcitriol | Serum or Plasma | Chemistry - non-challenge | LP385194-8 | 1 |
| Calcium | Blood | Chemistry - non-challenge | LP385949-5 | 1 |
| Calcium | Hair | Chemistry - non-challenge | LP385960-2 | 1 |
| Calcium bilirubinate crystals | LP18871-1 | 1 |
| Calcium bilirubinate crystals | Calculus (stone) | Chemistry - non-challenge | LP386701-9 | 1 |
| Calcium carbonate crystals | Calculus (stone) | Chemistry - non-challenge | LP386703-5 | 1 |
| Calcium hydrogen phosphate crystals | LP18875-2 | 1 |
| Calcium hydrogen phosphate crystals | Calculus (stone) | Chemistry - non-challenge | LP386704-3 | 1 |
| Calcium hydrogen phosphate dihydrate | LP34391-0 | 1 |
| Calcium hydrogen phosphate dihydrate | Urine | Chemistry - non-challenge | LP386705-0 | 1 |
| Calcium hydrogen phosphate dihydrate crystals | LP18130-2 | 1 |
| Calcium hydrogen phosphate dihydrate crystals | Urine sediment | Urinalysis | LP402385-1 | 1 |
| Calcium oxalate | Urine | Chemistry - non-challenge | LP386708-4 | 1 |
| Calcium oxalate monohydrate crystals | LP18874-5 | 1 |
| Calcium oxalate monohydrate crystals | Calculus (stone) | Chemistry - non-challenge | LP386713-4 | 1 |
| Calcium-phosphorus product | LP18367-0 | 1 |
| Calcium-phosphorus product | Serum or Plasma | Chemistry - non-challenge | LP385347-2 | 1 |
| Calcium.ionized | Blood venous | Chemistry - non-challenge | LP385979-2 | 1 |
| Calprotectin | LP34583-2 | 1 |
| Calprotectin | Stool | Chemistry - non-challenge | LP384547-8 | 1 |
| Campylobacter sp | LP16647-7 | 1 |
| Campylobacter sp | Stool | Microbiology | LP374325-1 | 1 |
| Cancer Ag 15-3 | LP15461-4 | 1 |
| Cancer Ag 15-3 | Serum or Plasma | Chemistry - non-challenge | LP386086-5 | 1 |
| Cancer Ag 19-9 | LP14040-7 | 1 |
| Cancer Ag 19-9 | Serum or Plasma | Chemistry - non-challenge | LP386092-3 | 1 |
| Cancer Ag 27-29 | LP15464-8 | 1 |
| Cancer Ag 27-29 | Serum or Plasma | Chemistry - non-challenge | LP386096-4 | 1 |
| Cannabinoids | Meconium | Drug toxicology | LP389535-8 | 1 |
| carBAMazepine | LP16061-1 | 1 |
| carBAMazepine | Serum or Plasma | Drug toxicology | LP390763-3 | 1 |
| Carbon dioxide | Blood cord | Chemistry - non-challenge | LP383324-3 | 1 |
| Carbon dioxide | Body fluid | Chemistry - non-challenge | LP383329-2 | 1 |
| Carbon dioxide | Serum or Plasma | Chemistry - non-challenge | LP383334-2 | 1 |
| Carbonated calcium phosphate | LP29178-8 | 1 |
| Carbonated calcium phosphate | Calculus (stone) | Chemistry - non-challenge | LP386716-7 | 1 |
| Carboxyhemoglobin | LP21418-6 | 1 |
| Carboxyhemoglobin | Blood | Chemistry - non-challenge | LP383345-8 | 1 |
| Cardiac glycosides | LP31498-6 | 1 |
| Carnitine | Serum or Plasma | Chemistry - non-challenge | LP381546-3 | 1 |
| Carnitine | Urine | Chemistry - non-challenge | LP381548-9 | 1 |
| Carnitine free (C0) | Cerebral spinal fluid | Chemistry - non-challenge | LP381551-3 | 1 |
| Carnitine free (C0) | Serum or Plasma | Chemistry - non-challenge | LP381552-1 | 1 |
| Carnosine | Amniotic fluid | Chemistry - non-challenge | LP383832-5 | 1 |
| Carnosine | Cerebral spinal fluid | Chemistry - non-challenge | LP383833-3 | 1 |
| Carnosine | Serum or Plasma | Chemistry - non-challenge | LP383834-1 | 1 |
| Carotene | LP15477-0 | 1 |
| Carotene | Serum or Plasma | Chemistry - non-challenge | LP426513-0 | 1 |
| CD14 cells | LP14445-8 | 1 |
| CD14 cells | Blood | Cell markers | LP399488-8 | 1 |
| CD16+CD56+ cells | LP19274-7 | 1 |
| CD16+CD56+ cells | XXX | Cell markers | LP400508-0 | 1 |
| CD19 cells | Blood | Cell markers | LP399545-5 | 1 |