| Estrone | Serum or Plasma | Chemistry - non-challenge | LP381294-0 | 1 |
| Ethanol | Serum or Plasma | Drug toxicology | LP391422-5 | 1 |
| Ethanolamine | Cerebral spinal fluid | Chemistry - non-challenge | LP383935-6 | 1 |
| Ethanolamine | Serum or Plasma | Chemistry - non-challenge | LP383936-4 | 1 |
| Ethosuximide | LP16137-9 | 1 |
| Ethosuximide | Serum or Plasma | Drug toxicology | LP390777-3 | 1 |
| Ethylene glycol | LP14106-6 | 1 |
| Ethylene glycol | Serum, Plasma or Blood | Drug toxicology | LP387839-6 | 1 |
| Ethylmalonate | DBS | Chemistry - non-challenge | LP383939-8 | 1 |
| Ethylmalonate | Serum or Plasma | Chemistry - non-challenge | LP383940-6 | 1 |
| Everolimus | LP65523-0 | 1 |
| Everolimus | Blood | Drug toxicology | LP390584-3 | 1 |
| Evidence of adrenal cortical hormone excess | LP419496-7 | 1 |
| Evidence of adrenal cortical hormone excess | Urine | Chemistry - non-challenge | LP421925-1 | 1 |
| F2 gene | LP14459-9 | 1 |
| F2 gene c.20210G>A | LP14458-1 | 1 |
| F2 gene c.20210G>A | Blood or Tissue | Mutations | LP409659-2 | 1 |
| Fabry disease | LP113911-4 | 1 |
| Fabry disease | DBS | Chemistry - non-challenge | LP416996-9 | 1 |
| Fat | Urine | Chemistry - non-challenge | LP382043-0 | 1 |
| Fat.neutral | LP18150-0 | 1 |
| Fat.neutral | Stool | Chemistry - non-challenge | LP382046-3 | 1 |
| Fatty acid oxidation conditions suspected | LP97724-6 | 1 |
| Fatty acid oxidation conditions suspected | DBS | Chemistry - non-challenge | LP417006-6 | 1 |
| Fatty acid oxidation defects | DBS | Chemistry - non-challenge | LP385866-1 | 1 |
| Fatty acids | Red Blood Cells | Chemistry - non-challenge | LP382050-5 | 1 |
| Fatty acids | Serum or Plasma | Chemistry - non-challenge | LP382051-3 | 1 |
| Fatty acids.very long chain C22:0 (Docosanoate) | Red Blood Cells | Chemistry - non-challenge | LP382228-7 | 1 |
| Fatty acids.very long chain C22:0 (Docosanoate) | Serum or Plasma | Chemistry - non-challenge | LP382229-5 | 1 |
| Fatty acids.very long chain C24:0 (Tetracosanoate) | Red Blood Cells | Chemistry - non-challenge | LP382233-7 | 1 |
| Fatty acids.very long chain C26:0 (Hexacosanoate) | Red Blood Cells | Chemistry - non-challenge | LP382239-4 | 1 |
| Fatty acids.very long chain C26:1 (Hexacosenoate) | Red Blood Cells | Chemistry - non-challenge | LP382244-4 | 1 |
| Fatty acids.very long chain pattern | LP30851-7 | 1 |
| Fatty acids.very long chain pattern | Serum or Plasma | Chemistry - non-challenge | LP382247-7 | 1 |
| Fatty acids.very long chain.C22:1n9 (Erucate) | Red Blood Cells | Chemistry - non-challenge | LP382230-3 | 1 |
| Fatty acids.very long chain.C22:1n9 (Erucate) | Serum or Plasma | Chemistry - non-challenge | LP382231-1 | 1 |
| fentaNYL | LP15167-7 | 1 |
| fentaNYL | Urine | Drug toxicology | LP389898-0 | 1 |
| Fetal lung maturity | LP33021-4 | 1 |
| Fetal lung maturity | Amniotic fluid | Chemistry - non-challenge | LP386917-1 | 1 |
| Fibers | LP34980-0 | 1 |
| Fibrin degradation products | Blood | Coagulation | LP394003-0 | 1 |
| Fibrin strands | LP31530-6 | 1 |
| Fibrin strands | Blood | Hematology and Cell counts | LP393372-0 | 1 |
| Fibrin.soluble | LP15993-6 | 1 |
| Fibrin.soluble | Serum | Coagulation | LP394018-8 | 1 |
| Fibrin+Fibrinogen fragments | Platelet poor plasma | Coagulation | LP394004-8 | 1 |
| Fibrin+Fibrinogen fragments | Serum | Coagulation | LP394005-5 | 1 |
| Fibronectin.fetal | XXX | Chemistry - non-challenge | LP384780-5 | 1 |
| Fibrosis stage | LP63143-9 | 1 |
| Fibrosis stage | Serum or Plasma | Chemistry - non-challenge | LP385329-0 | 1 |
| Filtration Fraction | LP420297-6 | 1 |
| Filtration Fraction | Urine and Serum or Plasma | Chemistry - non-challenge | LP421847-7 | 1 |
| First and Second trimester integrated maternal screen | LP69851-1 | 1 |
| First and Second trimester integrated maternal screen | Patient | Chemistry - non-challenge | LP386785-2 | 1 |
| First trimester maternal screen with nuchal translucency | LP69855-2 | 1 |
| First trimester maternal screen with nuchal translucency | Patient | Chemistry - non-challenge | LP386784-5 | 1 |
| Flavin adenine dinucleotide | LP15574-4 | 1 |
| Flavin adenine dinucleotide | Serum or Plasma | Chemistry - non-challenge | LP385098-1 | 1 |
| Flavin mononucleotide | LP70671-0 | 1 |
| Flavin mononucleotide | Serum or Plasma | Chemistry - non-challenge | LP385100-5 | 1 |
| FMR1 gene CGG repeats | LP19788-6 | 1 |
| FMR1 gene CGG repeats | Blood or Tissue | Nucleotide repeats | LP409275-7 | 1 |
| Folate | Blood | Chemistry - non-challenge | LP385215-1 | 1 |
| Folate | Red Blood Cells | Chemistry - non-challenge | LP385217-7 | 1 |
| Folate | Serum or Plasma | Chemistry - non-challenge | LP385218-5 | 1 |
| Follitropin | LP14499-5 | 1 |
| Follitropin | Serum or Plasma | Chemistry - non-challenge | LP381364-1 | 1 |
| Formiminoglutamate | LP70083-8 | 1 |
| Formiminoglutamate | DBS | Chemistry - non-challenge | LP384016-4 | 1 |
| Fragments | LP14569-5 | 1 |
| Fragments | Blood | Hematology and Cell counts | LP393412-4 | 1 |
| FRAXE gene CGG repeats | LP19790-2 | 1 |
| FRAXE gene CGG repeats | Blood or Tissue | Nucleotide repeats | LP409276-5 | 1 |
| Free Hemoglobin | Serum | Hematology and Cell counts | LP392477-8 | 1 |
| Fructosamine | LP15578-5 | 1 |
| Fructosamine | Serum or Plasma | Chemistry - non-challenge | LP385500-6 | 1 |
| Fructose | Urine | Chemistry - non-challenge | LP385506-3 | 1 |
| Fumarate | Serum or Plasma | Chemistry - non-challenge | LP385508-9 | 1 |
| Fumarate | Urine | Chemistry - non-challenge | LP385509-7 | 1 |
| Fungus | Blood | Microbiology | LP442133-7 | 1 |
| Fungus | Isolate | Microbiology | LP442143-6 | 1 |
| Fungus | Skin | Microbiology | LP376133-7 | 1 |
| Gabapentin | LP17989-2 | 1 |
| Gabapentin | Serum, Plasma or Blood | Drug toxicology | LP390785-6 | 1 |
| Galactitol | LP61820-4 | 1 |
| Galactitol | Urine | Chemistry - non-challenge | LP385626-9 | 1 |
| Galactose | Urine | Chemistry - non-challenge | LP385517-0 | 1 |
| Galactose 1 phosphate | LP15586-8 | 1 |
| Galactose 1 phosphate | DBS | Chemistry - non-challenge | LP385521-2 | 1 |
| Galactosemias | LP56739-3 | 1 |
| Galactosemias | DBS | Chemistry - non-challenge | LP385881-0 | 1 |
| Galactosylceramidase | DBS | Chemistry - non-challenge | LP385760-6 | 1 |
| Gamma aminobutyrate | Amniotic fluid | Chemistry - non-challenge | LP386209-3 | 1 |
| Gamma aminobutyrate | Cerebral spinal fluid | Chemistry - non-challenge | LP386212-7 | 1 |
| Gamma aminobutyrate | Serum or Plasma | Chemistry - non-challenge | LP386214-3 | 1 |
| Gamma aminobutyrate.free | LP157335-3 | 1 |
| Gamma aminobutyrate.free | Cerebral spinal fluid | Chemistry - non-challenge | LP386218-4 | 1 |
| Gamma globulin | Body fluid | Chemistry - non-challenge | LP384748-2 | 1 |
| Gamma glutamyl transferase | LP15590-0 | 1 |