| oxyCODONE | LP15003-4 | 3 |
| oxyCODONE | Urine | Drug toxicology | LP390102-4 | 3 |
| Palmitoyl protein thioesterase | LP32455-5 | 3 |
| Parathyrin | LP18184-9 | 3 |
| Parathyroid Hormones- | LP31659-3 | 3 |
| Pentacarboxylporphyrin I | LP30893-9 | 3 |
| Pentacarboxylporphyrin III | LP30894-7 | 3 |
| Phencyclidine | Urine | Drug toxicology | LP390195-8 | 3 |
| Phenylalanine | DBS | Chemistry - non-challenge | LP384225-1 | 3 |
| Phosphate | Urine | Chemistry - non-challenge | LP386061-8 | 3 |
| Platelet function (closure time) | LP14452-4 | 3 |
| Platelet function (closure time) | Blood | Coagulation | LP394311-7 | 3 |
| Polyclonal plasma cells | LP281418-6 | 3 |
| Polyclonal plasma cells | Bone marrow | Hematology and Cell counts | LP407477-1 | 3 |
| Porphobilinogen | LP14481-3 | 3 |
| Pregnanolone | LP221174-8 | 3 |
| Pregnanolone | Urine | Chemistry - non-challenge | LP381462-3 | 3 |
| Prolactin | Serum or Plasma | Chemistry - non-challenge | LP381387-2 | 3 |
| Propoxyphene | LP15017-4 | 3 |
| Propoxyphene | Urine | Drug toxicology | LP390147-9 | 3 |
| Protein S | Platelet poor plasma | Coagulation | LP394126-9 | 3 |
| Protein.monoclonal | Serum or Plasma | Chemistry - non-challenge | LP384954-6 | 3 |
| Protein.monoclonal isotype | LP269335-8 | 3 |
| Protoporphyrin | Stool | Chemistry - non-challenge | LP386509-6 | 3 |
| Protoporphyrin.zinc | LP15840-9 | 3 |
| Protoporphyrin.zinc | Red Blood Cells | Chemistry - non-challenge | LP386514-6 | 3 |
| Pyridoxal | LP28588-9 | 3 |
| Pyridoxal phosphate | LP28587-1 | 3 |
| Pyridoxine | LP15842-5 | 3 |
| Pyruvate | LP15693-2 | 3 |
| RBC casts | Urine | Urinalysis | LP402450-3 | 3 |
| Red cell indices | LP31669-2 | 3 |
| Rheumatoid arthritis disease activity | LP187192-2 | 3 |
| Rheumatoid factor | Serum | Serology - non-micro | LP403919-6 | 3 |
| Salicylates | LP16276-5 | 3 |
| Salicylates | Serum or Plasma | Drug toxicology | LP388622-5 | 3 |
| Sezary cells | LP18254-0 | 3 |
| Sezary cells | Blood | Hematology and Cell counts | LP392954-6 | 3 |
| Smudge cells | LP17685-6 | 3 |
| Smudge cells | Blood | Hematology and Cell counts | LP392950-4 | 3 |
| Sodium urate crystals | LP18869-5 | 3 |
| Specimen volume | LP19577-3 | 3 |
| Spermatozoa | Semen | Fertility testing | LP400920-7 | 3 |
| Stearoylcarnitine (C18) | LP29115-0 | 3 |
| Streptococcus pyogenes | Throat | Microbiology | LP376020-6 | 3 |
| Succinylaminoimidazole carboxamide riboside | LP113963-5 | 3 |
| Sucrose | LP15873-0 | 3 |
| Sucrose | Urine | Chemistry - non-challenge | LP385641-8 | 3 |
| Sugar alcohols | LP64092-7 | 3 |
| Sulfocysteine | LP31555-3 | 3 |
| Testosterone | Serum or Plasma | Chemistry - non-challenge | LP381179-3 | 3 |
| Tetrahydrocorticosterone | LP17921-5 | 3 |
| Tetrahydrocorticosterone | Urine | Chemistry - non-challenge | LP381088-6 | 3 |
| Tetrahydrodeoxycortisol | LP15884-7 | 3 |
| Tetrahydrodeoxycortisol | Urine | Chemistry - non-challenge | LP381097-7 | 3 |
| Thyroglobulin | LP14697-4 | 3 |
| Thyrotropin | Serum or Plasma | Chemistry - non-challenge | LP381405-2 | 3 |
| Thyroxine | DBS | Chemistry - non-challenge | LP381508-3 | 3 |
| Tobramycin | LP16294-8 | 3 |
| Tobramycin | Serum or Plasma | Drug toxicology | LP389051-6 | 3 |
| Tocopherols | LP28550-9 | 3 |
| Transitional cells | Urine | Urinalysis | LP402473-5 | 3 |
| Trichomonas sp | Urine | Urinalysis | LP402507-0 | 3 |
| Trimethyllysine | LP200267-5 | 3 |
| Tripeptidyl peptidase I | LP157346-0 | 3 |
| Triple phosphate crystals | Urine | Urinalysis | LP402414-9 | 3 |
| Tyrosine crystals | Urine | Urinalysis | LP402416-4 | 3 |
| Urate crystals | Urine | Urinalysis | LP402419-8 | 3 |
| Urea nitrogen | Urine | Chemistry - non-challenge | LP385466-0 | 3 |
| Urobilinogen | Urine | Urinalysis | LP402538-5 | 3 |
| Uroporphyrin | Urine | Chemistry - non-challenge | LP386522-9 | 3 |
| Valerates | LP31727-8 | 3 |
| Vancomycin | LP16306-0 | 3 |
| Vancomycin | Serum or Plasma | Drug toxicology | LP389062-3 | 3 |
| Vascular endothelial growth factor | LP32721-0 | 3 |
| Vitamin E | LP31697-3 | 3 |
| Volatiles and gases | LP18221-9 | 3 |
| Waxy casts | Urine | Urinalysis | LP402453-7 | 3 |
| WBC casts | Urine | Urinalysis | LP402456-0 | 3 |
| Xanthine | LP15953-0 | 3 |
| Yeast.budding | Urine | Urinalysis | LP402491-7 | 3 |
| Yeast.hyphae | Urine | Urinalysis | LP402493-3 | 3 |
| Zinc | LP14795-6 | 3 |
| 1,1-Dimethoxy-(9Z)octadecene (DMA 18:1) | Fibroblast | Chemistry - non-challenge | LP382027-3 | 2 |
| 1,1-Dimethoxyhexadecane (DMA 16:0) | DBS | Chemistry - non-challenge | LP441259-1 | 2 |
| 1,1-Dimethoxyhexadecane (DMA 16:0) | Fibroblast | Chemistry - non-challenge | LP382031-5 | 2 |
| 1,1-Dimethoxyoctadecane (DMA 18:0) | DBS | Chemistry - non-challenge | LP441261-7 | 2 |
| 1,1-Dimethoxyoctadecane (DMA 18:0) | Fibroblast | Chemistry - non-challenge | LP382035-6 | 2 |
| 11-Deoxycortisol | LP15252-7 | 2 |
| 11-Hydroxyandrosterone | LP15285-7 | 2 |
| 11-Hydroxyandrosterone | Urine | Chemistry - non-challenge | LP381115-7 | 2 |
| 11-Hydroxyetiocholanolone | LP15286-5 | 2 |
| 11-Hydroxyetiocholanolone | Urine | Chemistry - non-challenge | LP381118-1 | 2 |
| 11-Ketoetiocholanolone | LP15288-1 | 2 |
| 11-Ketoetiocholanolone | Urine | Chemistry - non-challenge | LP381124-9 | 2 |
| 17-Hydroxypregnenolone | Serum or Plasma | Chemistry - non-challenge | LP381017-5 | 2 |
| 17-Hydroxypregnenolone | Urine | Chemistry - non-challenge | LP381018-3 | 2 |
| 17-Hydroxyprogesterone | DBS | Chemistry - non-challenge | LP381454-0 | 2 |
| 17-Hydroxyprogesterone | Serum or Plasma | Chemistry - non-challenge | LP381457-3 | 2 |
| 2-Amino-4-hydroxypteridine | Serum or Plasma | Chemistry - non-challenge | LP384299-6 | 2 |