| YVGCCA | P/Q-Type Voltage-Gated Calcium Channel (VGCC) Antibody | — |
| YPMDSU | Pain Management Drug Screen with Interpretation, Urine | — |
| YPMPRQ | Pain Management Panel, Screen with Reflex to Quantitation | — |
| YPALIP | Paliperidone (Invega) | — |
| YPCRTN | Pancreastatin | — |
| YPNCRE | Pancreatic Elastase, Fecal | — |
| YPPTD | Pancreatic Polypeptide | — |
| YPANCNGS | Pancreatitis Panel (CFTR, CTRC, PRSS1, SPINK1), Sequencing | — |
| YPAP Liq Base | Pap Liquid Based - SurePath (North Platte ONLY) | — |
| YPRWASP | Paper Wasp IgE | — |
| YPARANE | Paraneoplastic Autoantibody Evaluation | — |
| YPARARE | Paraneoplastic Reflexive Panel | — |
| YMALP | Parasite Exam, Blood | — |
| YPARM | Parasite Examination, Macroscopic | Visual Identification/Microscopy |
| YPTHRP | Parathyroid Hormone Related Peptide (PTHrP) | — |
| YAPCA | Parietal Cell Antibody, IgG | Semi-Quantitative Enzyme-Linked Immunosorbent Assay (ELISA) |
| YPNHPAN | Paroxysmal Nocturnal Hemoglobinuria Panel, RBC and WBC | — |
| YPNHRW | Paroxysmal Nocturnal Hemoglobinuria, High Sensitivity, RBC | — |
| YPNHW | Paroxysmal Nocturnal Hemoglobinuria, High Sensitivity, WBC | — |
| YPARVO | Parvovirus B19 Antibodies, IgG & IgM | — |
| YPB19P | Parvovirus B19 DNA Detection | — |
| YPXIL | Paxil (Paroxetine) | — |
| YPEACH | Peach IgE | — |
| YPEANUT | Peanut, IgE | — |
| YPECNUT | Pecan (Food) IgE | — |
| YPECAN | Pecan/Hickory Tree IgE | — |
| YPGOID | Pemphigoid Ab Panel, IgG/IgA | — |
| YPEMPHI | Pemphigus Panel | — |
| YCANNUM | Pepper Bell/Paprika (Capsicum annuum) IgE | — |
| YFPEPS | Pepsinogen I | — |
| YPERAMP | Perampanel Quant, Serum or Plasma | — |
| YPRFEV | Periodic Fever Syndromes Panel | — |
| YNPPAN | Peripheral Neuropathy Genetic Panels (NGS), Blood | — |
| YPDFCU | Peritoneal Dialysis Fluid (PDF) Culture | — |
| YACASM | Pernicious Anemia Cascade | Competitive-Binding Immunoenzymatic Assay |
| YFPH | pH, Body Fluid | — |
| YFPHL | pH, Fecal | — |
| YPNCDN | Phencyclidine (PCP) Confirmation/Quantitation - Urine | — |
| YPCPQ | Phencyclidine (PCP) Quant, Serum or Plasma | — |
| YPHENOB | Phenobarbital | — |
| YPSII | PhenoSense Integrase Inhibitor | — |
| YPHETYR | Phenylalanine & Tyrosine | Quantitative Liquid Chromatography-Tandem Mass Spectrometry |
| YPHTN | Phenytoin (Dilantin) | Kinetic Interaction of Microparticles in Solution (KIMS) Methodology |
| YFPHE | Phenytoin, Free | — |
| YPHFT | Phenytoin, Free and Total (Dilantin) | — |
| YPETHL | Phosphatidylethanol (PEth) | — |
| YAPSPT | Phosphatidylserine and Prothrombin Abs, IgG/IgM | Semi-Quantitative Enzyme-Linked Immunosorbent Assay (ELISA) |
| YAPPDL | Phosphatidylserine Antibodies, IgG, IgM, and IgA | Semi-Quantitative Enzyme-Linked Immunosorbent Assay (ELISA) |
| YPT217 | Phospho-Tau 217, Plasma | — |
| YPLA2R | Phospholipase A2 Receptor (PLA2R) Ab, IgG w/ reflex to titer | — |
| YPHOS | Phosphorus (Inorg) | Photometric UV Method |
| YUPO4B | Phosphorus (PO4), Urine, 24 Hour | — |
| YUPO4S | Phosphorus (PO4), Urine, Random | — |
| YPINNUT | Pine Nut (Pinion), IgE | — |
| YPINAPP | Pineapple IgE | — |
| YPISTAC | Pistachio IgE | — |
| YPAI1 | Plasminogen Activator Inhibitor Activity | — |
| YPAI1G | Plasminogen Activator Inhibitor-1, PAI-1 (SERPINE1) Genotyping | — |
| YPLAACT | Plasminogen Activity | — |
| YPLABN | Platelet Antibody Screen, Serum | — |
| YPAGP | Platelet Antigen Genotyping Panel | — |
| YPAAB | Platelet Associated Antibodies, Direct Assay | — |
| YPLT | Platelet Count | Fluorescent Flow Cytometry; DC Impedance with Hydrodynamic Focusing; Cyanide-Free SLS Method |
| YPMSCL | PM/Scl-100 Antibody, IgG by Immunoblot | — |
| YPJPCR | Pneumocystis jirovecii by PCR | — |
| YPLINK | PNH, PI-Linked Antigen | — |
| YPLIO | Poliovirus (Types 1-3) Antibodies | — |
| YPCBP | Polychlorinated Biphenyls (PCB) Panel, Congeners, Serum or Plasma | — |
| YPLYMS1 | Polymyositis Panel | — |
| YALLPK | Pork IgE | Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay |
| YPORP | Porphobilinogen (PBG), Urine, Random or 24 Hour | — |
| YPBGDE | Porphobilinogen Deaminase, Erythrocyte | — |
| YPORST | Porphyrins, Fecal | — |
| YPRPRF | Porphyrins, Total with Reflex to Fractionation | — |
| YPORS | Porphyrins, Total, Plasma or Serum | — |
| YUQPO | Porphyrins, Urine, Random or 24 Hr. | — |
| YPOSQ | Posaconazole, Quantitation | — |
| YPTDSA | Post Transplant Donor Specific Antibodies | — |
| YK | Potassium | Ion-Selective Electrode, Direct Potentiometric Method |
| YFK | Potassium, Body Fluid | Ion-Selective Electrode, Direct Potentiometric Method |
| YPOFE | Potassium, Fecal, Random or 24 Hour | — |
| YKRBC | Potassium, Total, RBC | — |
| YTKU | Potassium, Urine, 24 Hour | — |
| YKRU | Potassium, Urine, Random | — |
| YPAB | Prealbumin | — |
| YC2AD2 | PrecivityAD2, Plasma | — |
| YPRBN | Pregabalin (Lyrica) | — |
| YPIH | Pregnancy Induced Hypertension Panel | See Individual Components |
| YPREGU | Pregnancy Screen (HCG), Urine Qualitative | — |
| YPREGNEN | Pregnenolone | — |
| YPKA | Prekallikrein (Fletcher Factor) Activity | — |
| YPBCP | Primary Biliary Cholangitis Panel | — |
| YMYSL | Primidone and Metabolite (Mysoline) | — |
| YPCTP | Procalcitonin | Electrochemiluminescence Immunoassay |
| YINTPT | Procollagen Type I Intact N-Terminal Propeptide | — |
| YPRGS | Progesterone | Electrochemiluminescence Immunoassay |
| YPRFT | Progesterone, Free w/Total Progesterone, LC/MS-MS | High-pressure liquid chromatography (HPLC)/tandem mass spectrometry, equilibrium dialysis, calculation |
| YPRIN | Proinsulin | — |
| YPRIIR | Proinsulin, Intact/Insulin Ratio | — |
| YPRLS | Prolactin | Electrochemiluminescence Immunoassay |
| YPLPMA | Prolactin, Pituitary Macroadenoma, Serum | — |
| YFPHEG | Promethazine (Phenergan) | — |
| YPRFN | Propafenone (Rythmol) | — |
| YCDPROP | Propoxyphene & Metabolite, UR (Confirmation only) | — |
| YPPXY | Propoxyphene & Metabolite, Urine Quantitation | — |
| YPROP | Propranolol (Inderal) | — |
| YPGD2 | Prostaglandin D2 (PG D2) Serum or Plasma | — |
| YPD2U | Prostaglandin D2 (PG D2), Urine | — |
| YPHI11 | Prostate Health Index (phi), Serum | — |
| YPSA | Prostate Specific AG | Electrochemiluminescence Immunoassay |
| YPSK4K | Prostate-Specific Kallikrein, 4Kscore | — |
| YPROTCS | Protein C & S Screen | Electromagnetic Mechanical Clot Detection |
| YPCACT | Protein C Activity (Functional) | Electromagnetic Mechanical Clot Detection |
| YPCDPRPS | Protein C Deficiency Profile | CAG - Enzyme-Linked Immunosorbent Assay; PCACT - Electromagnetic Mechanical Clot Detection |
| YCAG | Protein C, Total Antigen | Enzyme-Linked Immunosorbent Assay (ELISA) |
| YUPER | Protein Electrophoresis Urine 24 Hr. | — |
| YSPERI | Protein Electrophoresis w/reflex to Immunofixation, Serum | Quantitative Capillary Electrophoresis, Qualitative Immunofixation Electrophoresis, Quantitative Immunoturbidimetry, Colorimetry |
| YTPEPR | Protein Electrophoresis w/reflex to Immunotyping | Capillary Electrophoresis |
| YPEPCRPS | Protein Electrophoresis, CSF | — |
| YTPEP | Protein Electrophoresis, Serum (RPS) | Capillary Electrophoresis |
| YREPU | Protein Electrophoresis, Urine Random | — |
| YPSTFM | Protein S Antigen, Plasma | — |
| YPSDPRPS | Protein S Deficiency Profile | PSACT, SAG - Microlatex Particle-Mediated Immunoassay; SACT - Electromagnetic Mechanical Clot Detection |
| YPSACT | Protein S Free, Antigen | Microlatex Particle-Mediated Immunoassay |
| YSACT | Protein S, Functional (Activity) | Electromagnetic Mechanical Clot Detection |
| YSAGR | Protein S, Total Antigen | Microlatex Particle-Mediated Immunoassay |
| YUQP | Protein Urine, Random | Colorimetric Endpoint Biuret Method |
| YTQP | Protein Values, 24 Hr. Urine | Colorimetric Endpoint Biuret Method |
| YPRCR | Protein/Creatinine Urine Ratio | Kinetic Colorimetric Assay, |
| YF2DNN | Prothrombin Factor II DNA Analysis | Prothrombin (G20210A) Mutations will be performed on the Cepheid Gene Xpert® as a qualitative real-time DNA amplification-based assay. |
| YPRLEY | Prothrombin Factor II/Leiden Factor V Mutation (FVLM) | 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. |
| YPTF12 | Prothrombin Fragment 1+2 | Enzyme Immunoassay |
| YFPF12 | Prothrombin Fragment 1+2 MoAb | — |
| YPT | Prothrombin Time (PT) | — |
| YPPFE | Protoporphyrins Fractionation, Whole Blood | — |
| YPROTR | Protriptyline | — |
| YPSTFR | PSA Total & Free | — |
| YPSDI | Pseudocholinesterase, Dibucaine Inhibition | — |
| YPTML | PT Mixing Study | — |
| YPTHS | PTH Serial Monitor | Electrochemiluminescence Immunoassay |
| YPTH2 | PTH, Intact | Electrochemiluminescence Immunoassay |
| YPTTM | PTT Mixing Study | — |
| YPPPU | Purine and Pyrimidine Panel, Random Urine | — |
| YPYRUQ | Pyrroles, Urine | — |
| YPYRUK | Pyruvate Kinase | — |
| YPYRUVB | Pyruvic Acid | — |
