| 2-Hydroxyestrone | LP64855-7 | 2 |
| 2-Hydroxyestrone | Serum or Plasma | Chemistry - non-challenge | LP381303-9 | 2 |
| 2-methyl-3-hydroxybutyrate (C5-OH) | LP18406-6 | 2 |
| 2-Methylbutyrylglycine | LP14511-7 | 2 |
| 2-Methylbutyrylglycine | Urine | Chemistry - non-challenge | LP383968-7 | 2 |
| 2-Oxo,3-Methylvalerate | LP18407-4 | 2 |
| 2-Oxoisocaproate | LP16012-4 | 2 |
| 2-Oxoisovalerate | LP18410-8 | 2 |
| 2,8-Dihydroxyadenine | LP201704-6 | 2 |
| 25-Hydroxyvitamin D3+25-Hydroxyvitamin D2 | LP182450-9 | 2 |
| 25-Hydroxyvitamin D3+25-Hydroxyvitamin D2 | Serum or Plasma | Chemistry - non-challenge | LP385185-6 | 2 |
| 3-Hydroxybutyrylcarnitine (C4-OH) | LP19307-5 | 2 |
| 3-Hydroxydecanoate (3-OH-C10:0) | LP62924-3 | 2 |
| 3-Hydroxydodecanoate (3-OH-C12:0) | LP28558-2 | 2 |
| 3-Hydroxydodecanoylcarnitine (C12-OH) | LP28984-0 | 2 |
| 3-Hydroxyhexanoate (3-OH-C6:0) | LP61805-5 | 2 |
| 3-Hydroxyhexanoylcarnitine (C6-OH) | LP28987-3 | 2 |
| 3-Hydroxyisovalerate | LP15301-2 | 2 |
| 3-Hydroxyisovalerylcarnitine+2-Methyl,3-Hydroxybutyrylcarnitine (C5-OH) | LP66332-5 | 2 |
| 3-Hydroxylinoleoylcarnitine (C18:2-OH) | LP19329-9 | 2 |
| 3-Hydroxymyristate (3-OH-C14:0) | LP62751-0 | 2 |
| 3-Hydroxyoctanoate (3-OH-C8:0) | LP62921-9 | 2 |
| 3-Hydroxyoleoylcarnitine (C18:1-OH) | LP19330-7 | 2 |
| 3-Hydroxypalmitate (3-OH-C16:0) | LP62750-2 | 2 |
| 3-Hydroxypalmitoleylcarnitine (C16:1-OH) | LP28986-5 | 2 |
| 3-Hydroxypalmitoylcarnitine (C16-OH) | DBS | Chemistry - non-challenge | LP381897-0 | 2 |
| 3-Hydroxypropionate (3-OH-C3) | LP18417-3 | 2 |
| 3-Hydroxystearoylcarnitine (C18-OH) | LP33294-7 | 2 |
| 3-Hydroxytetradecanoylcarnitine (C14-OH) | LP28990-7 | 2 |
| 3-Hydroxytetradecenoylcarnitine (C14:1-OH) | LP19324-0 | 2 |
| 3-Hydroxytrimethyl-L-lysine | Cerebral spinal fluid | Chemistry - non-challenge | LP384041-2 | 2 |
| 3-Hydroxytrimethyl-L-lysine | DBS | Chemistry - non-challenge | LP384040-4 | 2 |
| 3-Hydroxytrimethyl-L-lysine | Serum or Plasma | Chemistry - non-challenge | LP384042-0 | 2 |
| 3-Methylglutaconate | LP18420-7 | 2 |
| 4-Hydroxy-3-Methoxyphenyllactate | LP61809-7 | 2 |
| 5-Aminoimidazole-4-carboxamide | LP201703-8 | 2 |
| 5-Hydroxymethyluracil | LP199591-1 | 2 |
| 5-Oxoproline+Pipecolate | LP70201-6 | 2 |
| 5-Oxoproline+Pipecolate | DBS | Chemistry - non-challenge | LP383662-6 | 2 |
| 5-Pregnenediol | LP419508-9 | 2 |
| 5-Pregnenediol | Urine | Chemistry - non-challenge | LP421926-9 | 2 |
| 5-Pregnenetriol | LP419507-1 | 2 |
| 5-Pregnenetriol | Urine | Chemistry - non-challenge | LP421927-7 | 2 |
| 5,6-Dihydrouracil | LP201702-0 | 2 |
| 5,6-Dihydrouridine | LP201695-6 | 2 |
| 6-Beta-Hydroxycortisol | LP18380-3 | 2 |
| 6-Beta-Hydroxycortisol | Urine | Chemistry - non-challenge | LP380984-7 | 2 |
| 6-Monoacetylmorphine | LP14980-4 | 2 |
| 6-Monoacetylmorphine | Urine | Drug toxicology | LP389805-5 | 2 |
| 7-Alpha hydroxy-4-cholesten-3-one | Serum or Plasma | Chemistry - non-challenge | LP382400-2 | 2 |
| Abnormal lymphocytes | Blood | Hematology and Cell counts | LP392946-2 | 2 |
| Abnormal lymphocytes | Body fluid | Hematology and Cell counts | LP392947-0 | 2 |
| Abnormal lymphocytes | Cerebral spinal fluid | Hematology and Cell counts | LP392948-8 | 2 |
| Abnormal lymphocytes | Synovial fluid | Hematology and Cell counts | LP392949-6 | 2 |
| Acetaminophen crystals | LP36570-7 | 2 |
| Acetaminophen crystals | Urine sediment | Urinalysis | LP402380-2 | 2 |
| Acetoacetate | LP15312-9 | 2 |
| Acetoacetate+Acetone | LP28813-1 | 2 |
| Acetone | Serum or Plasma | Drug toxicology | LP387770-3 | 2 |
| Acetylcarnitine (C2) | LP19301-8 | 2 |
| Acid alpha glucosidase | White blood cells | Chemistry - non-challenge | LP385779-6 | 2 |
| Acid sphingomyelinase | LP14035-7 | 2 |
| Aconitate | LP18428-0 | 2 |
| Acrylylcarnitine (C3:1) | LP70254-5 | 2 |
| Activated clotting time | LP15960-5 | 2 |
| Activated protein C resistance | Platelet poor plasma | Coagulation | LP394078-2 | 2 |
| Acute leukemia markers | LP36898-2 | 2 |
| Acute leukemia markers | XXX | Cell markers | LP400832-4 | 2 |
| Acyl CoA dehydrogenases | LP200316-0 | 2 |
| Acyl CoA dehydrogenases | Fibroblast | Chemistry - non-challenge | LP382661-9 | 2 |
| Acylcarnitine | Serum or Plasma | Chemistry - non-challenge | LP381573-7 | 2 |
| Adenine | LP15320-2 | 2 |
| Adipate | LP15330-1 | 2 |
| Adipoylcarnitine+Methylglutarylcarnitine (C6-DC) | LP65147-8 | 2 |
| Alanine aminotransferase | LP15333-5 | 2 |
| Alanine aminotransferase | Serum or Plasma | Chemistry - non-challenge | LP382703-9 | 2 |
| Albumin | Body fluid | Chemistry - non-challenge | LP384477-8 | 2 |
| Aldolase | LP15021-6 | 2 |
| Aldosterone | Serum or Plasma | Chemistry - non-challenge | LP381044-9 | 2 |
| Alkaline phosphatase.intestinal | LP15348-3 | 2 |
| Alkaline phosphatase.intestinal | Serum or Plasma | Chemistry - non-challenge | LP382737-7 | 2 |
| Alkaline phosphatase.liver | Serum or Plasma | Chemistry - non-challenge | LP382744-3 | 2 |
| Alkaline phosphatase.liver 1 | LP18470-2 | 2 |
| Alkaline phosphatase.liver 1 | Serum or Plasma | Chemistry - non-challenge | LP382745-0 | 2 |
| Alkaline phosphatase.liver 2 | LP18471-0 | 2 |
| Alkaline phosphatase.liver 2 | Serum or Plasma | Chemistry - non-challenge | LP382747-6 | 2 |
| Alkaline phosphatase.placental | LP14640-4 | 2 |
| Alkaline phosphatase.placental | Serum or Plasma | Chemistry - non-challenge | LP382755-9 | 2 |
| Alkaline phosphatase.regan | LP15350-9 | 2 |
| Alkaline phosphatase.regan | Serum or Plasma | Chemistry - non-challenge | LP382759-1 | 2 |
| Alloisoleucine | Serum or Plasma | Chemistry - non-challenge | LP383714-5 | 2 |
| Alpha 1 antitrypsin | Serum or Plasma | Chemistry - non-challenge | LP384606-2 | 2 |
| Alpha 1 globulin | Cerebral spinal fluid | Chemistry - non-challenge | LP384600-5 | 2 |
| Alpha 1 globulin | Serum or Plasma | Chemistry - non-challenge | LP384601-3 | 2 |
| Alpha 2 globulin | Cerebral spinal fluid | Chemistry - non-challenge | LP384646-8 | 2 |
| Alpha 2 globulin | Serum or Plasma | Chemistry - non-challenge | LP384647-6 | 2 |
| Alpha galactosidase A | LP14012-6 | 2 |
| Alpha hydroxybutyrate | LP18402-5 | 2 |
| Alpha ketoglutarate | LP15365-7 | 2 |
| Alpha linolenate (C18:3w3) | LP33071-9 | 2 |