| YFXIII | Factor 13, Qual w/reflex to Factor 13 1:1 Mix | — |
| YF2A | Factor II Assay (Activity) | — |
| YF2IP | Factor II Inhibitor | — |
| YF9AG | Factor IX Antigen | — |
| YF9A | Factor IX Assay (Activity) | — |
| YF9IP | Factor IX Inhibitor | — |
| YF5I | Factor V (5) Inhibitor | — |
| YLEYDN | Factor V Leiden Mutation | Factor V Leiden (G1691A; R506Q) and Prothrombin (G20210A) Mutations will be performed on the Cepheid Gene Xpert® as a qualitative real-time DNA amplification-based assay. |
| YFVACT | Factor V, Activity | — |
| YFVR2DNA | Factor V, R2 Mutation DNA Analysis | — |
| YF7I | Factor VII (7) Inhibitor | — |
| YFVAC | Factor VII, Activity | — |
| YF8AG | Factor VIII Antigen | — |
| YF8 | Factor VIII Assay (Activity) | — |
| YF8IB | Factor VIII Inhibitor | — |
| YFXAC | Factor X Assay (Activity) | — |
| YF10CHR | Factor X Chromogenic | — |
| YFAXI | Factor XI Assay (Activity) | — |
| YF12A | Factor XII Assay (Activity) | — |
| YFHPAN | Familial Hypercholesterolemia Panel, Sequencing | — |
| YMEFVS | Familial Mediterranean Fever (MEFV) Sequencing | — |
| YTTRAS | Familial Transthyretin Amyloidosis (TTR) Sequencing | — |
| YFADA | Fanconi Anemia, Group C (FANCC) 2 Mutations | — |
| YFAPCP | Fatty Acid Profile, Comp (C8-C26) | — |
| YESSFA | Fatty Acid Profile, Essential | — |
| YFAPS | Fatty Acid Profile, Peroxisomal (C22-C26) | — |
| YFFACD | Fatty Acids, Free | — |
| YFEBAB | Febrile Antibody Panel | — |
| YFBLD3 | Fecal Blood, Three Specimens | Immunochemical |
| YFNAKCL | Fecal Electrolytes, 24 hr. or Random | — |
| YFF24 | Fecal Fat, 24 Hour | — |
| YFATS | Fecal Fat, Random | — |
| YSFF | Fecal Fat, Semi-Quantitative | — |
| YFBLD | Fecal Occult Blood | Immunochemical |
| YFOBT | Fecal Occult Blood, Colorectal Cancer Screen, Qualitative | — |
| YFRED | Fecal Reducing Substances | — |
| YFELB | Felbamate | — |
| YCDFENT | Fentanyl & Metabolite, UR, Quant | — |
| YFENTU | Fentanyl and Analogues, Urine | — |
| YFNTLM | Fentanyl and Metabolite, Serum | — |
| YFMUQ | Fentanyl and Metabolite, Urine, Quantitative | — |
| YFENURQ | Fentanyl, Urine Screen w/reflex to Quant | — |
| YFERI | Ferritin | Electrochemiluminescence Immunoassay |
| YFIBRN | Fetal Fibronectin | — |
| YKLBT | Fetal Hgb Stain (Kleihauer-Betke) | — |
| YFIB4R | FIB-4 w/reflex to NASH FibroSure® Plus | Please see individual components for methodology |
| YU3RNP | Fibrillarin (U3 RNP) Antibody, IgG | — |
| YFDPP | Fibrin Degradation Products, Plasma | — |
| YFIBRR | Fibrinogen | Clauss clotting method |
| YFBRA | Fibrinogen Antigen | — |
| YFIBRO | FibroTest-ActiTest, Serum | — |
| YFANEU | FISH-Aneuploidy Assay (13,18,21,X,Y) Varies | — |
| YFLEC | Flecainide Level, (Tambocor) | — |
| YFLOBLD | Flow Cytometry (Blood ONLY) | Flow Cytometry/Hematopathology |
| YFLOW | Flow Cytometry (Other) | Flow Cytometry/Hematopathology |
| YFLUCON | Fluconazole, Quantitative | — |
| YFLUN | Flunitrazepam and Metabolites (Rohypnol) | — |
| YFLUNU | Flunitrazepam and Metabolites (Rohypnol), Urine | — |
| YFTACSF | Fluorescent Treponema Antibody, CSF | — |
| YFL | Fluoride Quantitative | — |
| YFROC | Fluoroquinolone-Resistant Organism, Culture | — |
| YFLUO | Fluoxetine (Prozac) | — |
| YFLUP | Fluphenazine (Prolixin) | — |
| YLUVX | Fluvoxamine (Luvox) | — |
| YFOL | Folate, Serum | Electrochemiluminescence Immunoassay |
| YAFCOMP | Food, Allergens, Comprehensive Profile 1 | Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay |
| YFRGX | Fragile X by PCR | — |
| YTULAR | Francisella tularensis Abs, IgG and IgM | — |
| YFE2 | Free Estradiol by ED/LC-MS/MS | — |
| YHGFP | Free Hemoglobin, Plasma | — |
| YFKLU | Free Kappa/Lambda Light Chain, Quant, Urine | — |
| YFT3E | Free T3 | Electrochemiluminescence Immunoassay |
| YFT4MS | Free T4, Equilibrium Dialysis/Mass Spectrometry | — |
| YFT4 | Free Thyroxine (T4) | Electrochemiluminescence Immunoassay |
| YTHYL | Free Thyroxine Index Panel | — |
| YFRU | Fructosamine | — |
| YFSHS | FSH | Electrochemiluminescence Immunoassay |
| YFTA | FTA ABS IgG | — |
| YFABQ | Fungal Antibodies | — |
| YFUNBL | Fungal Culture, Blood | — |
| YFUNID | Fungal ID | — |
| YKOHP | Fungal Stain-KOH w/Calcofluor White | — |
| YFUNGTL | Fungitell (1,3 Beta D Glucan) | — |
| YFUNCU | Fungus Culture | — |
| YFUNDCU | Fungus Culture, Hair/Skin/Nails | — |
| YLSIX | Furosemide (Lasix), Quantitative | — |
