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ARUP’s Commitment
On November 28, 2017, the FDA issued a Safety Communication warning that “Biotin May Interfere with Lab Tests.”
ARUP sent an announcement to clients regarding the original FDA Safety Communication warning on December 6, 2017. ARUP has also identified the tests that can potentially be affected by high levels of biotin.
On November 5, 2019, the FDA issued an updated Safety Communication “Update: The FDA Warns that Biotin May Interfere with Lab Tests: FDA Safety Communication.” Read more here.
Please be assured that ARUP responds to FDA notifications in a manner that is consistent with our commitment to quality and patient care. ARUP continues to encourage health care providers to interpret associated clinical results for patients that are taking high levels of biotin with caution.
For additional questions, please contact ARUP Client Services, (800) 522-2787, and refer to the key word: Biotin Interference.
About Biotin
Biotin (vitamin B7) is a water-soluble B vitamin that helps turn carbs, fats, and proteins into energy. The recommended daily intake (RDI) varies based on age (adults: 30 µg/day). Biotin can be found in various foods, as well as multivitamins, prenatal vitamins, and dietary supplements.2 However, dietary supplements marketed for hair, skin, and nail growth may contain biotin concentrations up to 650 times (5–10 mg) the RDI. High dose supplementation of biotin (>10 mg/day) may be recommended for patients with certain inherited metabolic deficiencies/diseases or conditions such as multiple sclerosis (MS).3
Potential Effect(s) on Testing
While standard intake levels of biotin do not typically cause interference, higher levels may cause significant interference with certain immunoassays that use biotin-streptavidin technology and affect corresponding test results.1,3 This interference can cause false highs and false lows, potentially leading to misdiagnosis.
Patients may be unaware they are taking higher-than-recommended levels of biotin, so it is important for physicians to be diligent in obtaining a full list of supplements for testing accuracy. This information should then be communicated with the lab(s) conducting the test(s). For suspicious or inconsistent patient results, biotin interference may be considered. Consult with testing laboratory to discuss potential impact.
Additional Resources
References
- FDA in Brief: FDA reminder about the potential for biotin interference 2019.
- National Institutes of Health. Biotin fact sheet for consumers.
- Roche Diagnostics. Biotin facts.
Test List
Last updated: August 2023
| Mnemonic | Test Number | Test Name |
|---|---|---|
| ACTH IHC | 2003427 | ACTH by Immunohistochemistry |
| ADENOV IHC | 2003430 | Adenovirus by Immunohistochemistry |
| ACTH | 0070010 | Adrenocorticotropic Hormone |
| ACTH IVC1 | 0070279 | Adrenocorticotropic Hormone, IVC1 |
| ACTH LP1 | 0070300 | Adrenocorticotropic Hormone, LP1 |
| ACTH RP1 | 0070311 | Adrenocorticotropic Hormone, RP1 |
| ALKD5F3 IP | 2007324 | ALK (D5F3) with Interpretation by Immunohistochemistry |
| A1 AT IHC | 2003424 | Alpha-1-Antitrypsin (AAT) by Immunohistochemistry |
| AFP IHC | 2003436 | Alpha-1-Fetoprotein (AFP) by Immunohistochemistry |
| ASYN IHC | 2003419 | Alpha-Synuclein by Immunohistochemistry |
| ALK1 IHC | 2003439 | Anaplastic Lymphoma Kinase 1 (ALK-1) by Immunohistochemistry |
| AR IHC | 3002791 | Androgen Receptor by Immunohistochemistry |
| BEREP4 IHC | 2003463 | Anti-Human Epithelial Antigen, Ber-EP4 by Immunohistochemistry |
| AQP4 | 2003036 | Aquaporin-4 Receptor Antibody |
| AQP4 R | 2013327 | Aquaporin-4 Receptor Antibody by ELISA with Reflex to Aquaporin-4 Receptor Antibody, IgG by IFA |
| ARG1 IHC | 2011890 | Arginase 1 by Immunohistochemistry |
| ATRX IHC | 2014499 | ATRX by Immunohistochemistry |
| BOB1 IHC | 2003442 | B Cell Specific Octamer Binding Protein-1 (BOB-1) by Immunohistochemistry |
| BAP1 IHC | 3004244 | BAP1 by Immunohistochemistry |
| BCL10 IHC | 3003393 | BCL-10 by Immunohistochemistry |
| BCL2 IHC | 2004513 | BCL-2 by Immunohistochemistry |
| BCL6 IHC | 2003457 | BCL-6 by Immunohistochemistry |
| BCAT1 IHC | 2003454 | Beta-Catenin-1 by Immunohistochemistry |
| BHCG TM | 0070029 | Beta-hCG, Quantitative (Tumor Marker) |
| BHCG CSF | 0020730 | Beta-hCG, Quantitative (Tumor Marker), CSF |
| BF1 IHC | 2003466 | BF-1 by Immunohistochemistry |
| BRACHY IHC | 3003824 | Brachyury by Immunohistochemistry |
| C1 INH PAN | 0050139 | C-1-Esterase Inhibitor Panel |
| CMYCIHC | 2008317 | C-MYC by Immunohistochemistry |
| CTX | 0070416 | C-Telopeptide, Beta-Cross-Linked, Serum |
| C1 INH F | 0050141 | C1-Esterase Inhibitor Functional |
| C4D IHC | 2003475 | C4D by Immunohistochemistry |
| CALCIT IHC | 2003481 | Calcitonin by Immunohistochemistry |
| CALDES IHC | 2003484 | Caldesmon by Immunohistochemistry |
| CALPON IHC | 2003487 | Calponin by Immunohistochemistry |
| CALRET IHC | 2003490 | Calretinin by Immunohistochemistry |
| CA125 | 0080462 | Cancer Antigen 125 |
| CA-BREAST | 0080464 | Cancer Antigen-Breast (CA 15-3) |
| CA-GI | 0080461 | Cancer Antigen-GI (CA 19-9) |
| CA-GI FL | 0020746 | Cancer Antigen-GI (CA 19-9), Body Fluid |
| CAIX IHC | 3001697 | Carbonic Anhydrase IX by IHC |
| CEA | 0080080 | Carcinoembryonic Antigen |
| CEA FL | 0020742 | Carcinoembryonic Antigen, Fluid |
| CEA M IHC | 2003824 | Carcinoembryonic Antigen, Monoclonal (CEA M) by Immunohistochemistry |
| CD10 IHC | 2003523 | CD10 (CALLA) by Immunohistochemistry |
| CD117 IHC | 2003806 | CD117 (c-Kit) by Immunohistochemistry |
| CD123 IHC | 2003809 | CD123 by Immunohistochemistry |
| CD138 IHC | 2003812 | CD138 (Syndecan-1) by Immunohistochemistry |
| CD15 IHC | 2003529 | CD15, Leu M1 by Immunohistochemistry |
| CD163 IHC | 2003815 | CD163 by Immunohistochemistry |
| CD19 IHC | 2005114 | CD19 by Immunohistochemistry |
| CD1A IHC | 2003502 | CD1a by Immunohistochemistry |
| CD2 IHC | 2003505 | CD2 by Immunohistochemistry |
| CD20 IHC | 2003532 | CD20, L26 by Immunohistochemistry |
| CD200 IHC | 2012844 | CD200 by Immunohistochemistry |
| CD21 IHC | 2003535 | CD21 (Dendritic Cell) by Immunohistochemistry |
| CD23 IHC | 2003541 | CD23 by Immunohistochemistry |
| CD25 IHC | 2003544 | CD25 by Immunohistochemistry |
| CD3 IHC | 2003508 | CD3 by Immunohistochemistry |
| CD30 IHC | 2003547 | CD30 (Ki-1) by Immunohistochemistry |
| CD31 IHC | 2003550 | CD31 by Immunohistochemistry |
| CD33 IHC | 2003553 | CD33 by Immunohistochemistry |
| CD34 IHC | 2003556 | CD34, QBEnd/10 by Immunohistochemistry |
| CD35 IHC | 2003559 | CD35 by Immunohistochemistry |
| CD4 IHC | 2003511 | CD4 by Immunohistochemistry |
| CD43 IHC | 2003568 | CD43, L60 (Leu 22) by Immunohistochemistry |
| CD45 IHC | 2003574 | CD45 by Immunohistochemistry |
| CD52 IHC | 2003586 | CD52 (CAMPATH-1) by Immunohistochemistry |
| CD56 IHC | 2003589 | CD56 (NCAM) by Immunohistochemistry |
| CD61 IHC | 2003595 | CD61 (Platelet Glycoprotein IIIA) by Immunohistochemistry |
| CD68 IHC | 2003598 | CD68, KP1 by Immunohistochemistry |
| CD7 IHC | 2003517 | CD7 by Immunohistochemistry |
| CD71 IHC | 3003704 | CD71 by Immunohistochemistry |
| CD79A IHC | 2003800 | CD79A by Immunohistochemistry |
| CD8 IHC | 2003520 | CD8 by Immunohistochemistry |
| CDK4 IHC | 2005534 | CDK4 by Immunohistochemistry |
| CDX2 IHC | 2003821 | CDX2 by Immunohistochemistry |
| CHROMO IHC | 2003830 | Chromogranin A by Immunohistochemistry |
| CHYMO IHC | 3003423 | Chymotrypsin by Immunohistochemistry |
| COTININE | 2007081 | Cotinine Screen, Urine |
| COV19G SQ | 3003648 | COVID-19 IgG (Spike), Semi-Quantitative by CIA |
| CXCL13 IHC | 2008622 | CXCL13 by Immunohistochemistry |
| CYCSP4 IHC | 2003842 | Cyclin D1, SP4 by Immunohistochemistry |
| CYFRA | 0081344 | CYFRA 21-1 (Cytokeratin 19 Fragment), Serum (Test on Delay as of 6/30/2023) |
| CYTO20 IHC | 2003848 | Cytokeratin 20 (CK 20) by Immunohistochemistry |
| CYTO56 IHC | 2003851 | Cytokeratin 5,6 (CK 5,6) by Immunohistochemistry |
| CYTO 7 IHC | 2003854 | Cytokeratin 7 (CK 7) by Immunohistochemistry |
| CAM5.2 IHC | 2003493 | Cytokeratin 8,18 Low Molecular Weight (CAM 5.2) by Immunohistochemistry |
| CYT13 CSF | 3003259 | Cytokine Panel 13, CSF |
| CYT13 PLA | 3002601 | Cytokine Panel 13, Plasma |
| CYT 12 SE | 0051394 | Cytokine Panel 13, Serum |
| CYT MON P | 3002616 | Cytokine Panel, Monokines, Plasma |
| CYT MON SE | 0051524 | Cytokine Panel, Monokines, Serum |
| CYT TH1 P | 3002617 | Cytokine Panel, TH1, Plasma |
| CYT TH1 SE | 0051408 | Cytokine Panel, TH1, Serum |
| CYT TH2 P | 3002627 | Cytokine Panel, TH2, Plasma |
| CYT TH2 SE | 0051518 | Cytokine Panel, TH2, Serum |
| CMV IHC | 2003833 | Cytomegalovirus (CMV) by Immunohistochemistry |
| D240 IHC | 2003857 | D2-40 by Immunohistochemistry |
| DHEAS | 0070040 | Dehydroepiandrosterone Sulfate, Serum |
| DESMIN IHC | 2003863 | Desmin by Immunohistochemistry |
| DOG1 IHC | 2010168 | DOG1 by Immunohistochemistry |
| ECADH IHC | 2003869 | E-Cadherin by Immunohistochemistry |
| EMA IHC | 2003872 | Epithelial Membrane Antigen (EMA) by Immunohistochemistry |
| ERA IHC | 2003875 | Epithelial-Related Antigen, MOC-31 by Immunohistochemistry |
| HERCEP IHC | 2007332 | ERBB2 (HER2) (HercepTest) by Immunohistochemistry |
| ERG IHC | 2012555 | ERG by Immunohistochemistry |
| ER IHC | 2004516 | Estrogen Receptor (ER) by Immunohistochemistry |
| O13 IHC | 2004055 | Ewing Sarcoma (O13) by Immunohistochemistry |
| FAC 13 IHC | 2003878 | Factor XIIIa by Immunohistochemistry |
| FSH | 0070055 | Follicle Stimulating Hormone, Serum |
| FUMHYD IHC | 3001416 | Fumarate Hydratase by Immunohistochemistry |
| GAST | 0070075 | Gastrin |
| GASTRI IHC | 2003896 | Gastrin by Immunohistochemistry |
| GAST 1 | 2012636 | Gastrin, 1 Minute |
| GAST 10 | 2012734 | Gastrin, 10 Minute |
| GAST 2 | 2012638 | Gastrin, 2 Minute |
| GAST 30 | 2012736 | Gastrin, 30 Minute |
| GAST 5 | 2012732 | Gastrin, 5 Minute |
| GAST BASE | 2012738 | Gastrin, Baseline |
| GFAP IHC | 2003899 | Glial Fibrillary Acidic Protein (GFAP) by Immunohistochemistry |
| GLUT1 IHC | 2003905 | Glucose Transporter-1 (GLUT-1) by Immunohistochemistry |
| GLYC A IHC | 2003908 | Glycophorin A by Immunohistochemistry |
| GLYP3 IHC | 2011925 | Glypican 3 by Immunohistochemistry |
| GRANZB IHC | 2007173 | Granzyme B by Immunohistochemistry |
| HGH IHC | 2003929 | Growth Hormone by Immunohistochemistry |
| H3K27M IHC | 3004370 | H3K27M by Immunohistochemistry |
| H3K27M3IHC | 3004364 | H3K27me3 by Immunohistochemistry |
| HPYLOR IHC | 2003941 | Helicobacter pylori by Immunohistochemistry |
| HAVAB | 0020591 | Hepatitis A Virus Antibodies (Total) |
| HAVABM | 0020093 | Hepatitis A Virus Antibody, IgM |
| HEP A PAN | 0020597 | Hepatitis A Virus Panel |
| HBV PAN PN | 2014285 | Hepatitis B Virus (HBV) Perinatal Exposure Follow-up by CIA, Panel |
| HEPCHRONIC | 0020454 | Hepatitis B Virus Panel, Chronic with Reflex to HBsAg Confirmation |
| HBSAB | 0020090 | Hepatitis B Virus Surface Antibody |
| HBSAG | 0020089 | Hepatitis B Virus Surface Antigen with Reflex to Confirmation |
| HBSAG PN | 2007573 | Hepatitis B Virus Surface Antigen with Reflex to Confirmation, Prenatal |
| HEP SA IHC | 2003923 | Hepatocyte Specific Antigen (HSA) by Immunohistochemistry |
| HSV IHC | 3000101 | Herpes Simplex Virus (HSV) Types I/II by Immunohistochemistry |
| HHV8 IHC | 2003932 | Herpes Virus 8 by Immunohistochemistry |
| HGAL IHC | 3004201 | HGAL by Immunohistochemistry |
| HNF1B IHC | 3001791 | HNF-1B by Immunohistochemistry |
| HCG IHC | 2003920 | Human Chorionic Gonadotropin (Beta-hCG) by Immunohistochemistry |
| HE4 | 2003020 | Human Epididymis Protein 4 (HE4) |
| IDH1 IHC | 2005857 | IDH1 R132H by Immunohistochemistry |
| IGD IHC | 2003960 | Immunoglobulin D (IgD) by Immunohistochemistry |
| IGG IHC | 2003963 | Immunoglobulin G (IgG) by Immunohistochemistry |
| IGG4 IHC | 2005844 | Immunoglobulin G4 by Immunohistochemistry |
| INHIBI IHC | 2003969 | Inhibin by Immunohistochemistry |
| BAF47 IHC | 2003448 | INI1 (BAF47) by Immunohistochemistry |
| INSM1 IHC | 3016567 | INSM1 by Immunohistochemistry |
| IFNG PLA | 3002628 | Interferon gamma, Plasma |
| IFNG DO | 0051531 | Interferon gamma, Serum |
| IL1B PLA | 3002629 | Interleukin 1 beta, Plasma |
| IL1B DO | 0051536 | Interleukin 1 beta, Serum |
| IL10 PLA | 3002623 | Interleukin 10, Plasma |
| IL10 DO | 0051534 | Interleukin 10, Serum |
| IL12 PLA | 3002624 | Interleukin 12, Plasma |
| IL12 DO | 0051530 | Interleukin 12, Serum |
| IL13 PLA | 3002625 | Interleukin 13, Plasma |
| IL13 DO | 0051535 | Interleukin 13, Serum |
| IL17 PLA | 3002626 | Interleukin 17, Plasma |
| IL17 | 2013115 | Interleukin 17, Serum |
| IL2R CSF | 3003261 | Interleukin 2 Receptor, Soluble, CSF |
| IL2R PLA | 3002631 | Interleukin 2 Receptor, Soluble, Plasma |
| IL2R DO | 0051529 | Interleukin 2 Receptor, Soluble, Serum |
| IL2 PLA | 3002630 | Interleukin 2, Plasma |
| IL2 DO | 0051588 | Interleukin 2, Serum |
| IL4 PLA | 3002622 | Interleukin 4, Plasma |
| IL4 DO | 0051532 | Interleukin 4, Serum |
| IL5 PLA | 3002621 | Interleukin 5, Plasma |
| IL5 DO | 0051533 | Interleukin 5, Serum |
| IL6 CSF | 3003260 | Interleukin 6, CSF |
| IL6 PLA | 3002620 | Interleukin 6, Plasma |
| IL6 DO | 0051537 | Interleukin 6, Serum |
| IL8 PLA | 3002619 | Interleukin 8, Plasma |
| IL8 DO | 0051538 | Interleukin 8, Serum |
| K903 IHC | 2003978 | Keratin 903 (K903) High Molecular Weight by Immunohistochemistry |
| MIB1 IHC | 2004519 | Ki-67, MIB-1, by Immunohistochemistry |
| LANGER IHC | 2013802 | LANGERIN by Immunohistochemistry |
| LH/FSH | 0070193 | Luteinizing Hormone and Follicle Stimulating Hormone |
| LH | 0070093 | Luteinizing Hormone, Serum |
| LYSOZY IHC | 2003990 | Lysozyme (Muramidase) by Immunohistochemistry |
| MASTCT IHC | 2003993 | Mast Cell Tryptase by Immunohistochemistry |
| MELANA IHC | 2003996 | Melan A by Immunohistochemistry (DAB Detection) |
| MELA R IHC | 3003729 | Melan A by Immunohistochemistry (Red Detection) |
| HMB 45 IHC | 2003935 | Melanoma Antibody, HMB45 by Immunohistochemistry (DAB Detection) |
| HMB45R IHC | 3003741 | Melanoma Antibody, HMB45 by Immunohistochemistry (Red Detection) |
| MITF IHC | 2011998 | MITF by Immunohistochemistry |
| MUC1 IHC | 2004002 | Muc-1 by Immunohistochemistry |
| MUC4 IHC | 2004008 | Muc-4 by Immunohistochemistry |
| IRF4 IHC | 2003975 | MUM1/IRF4 by Immunohistochemistry |
| MUSA IHC | 2004011 | Muscle-Specific Actin (MSA) by Immunohistochemistry |
| MYELOP IHC | 2004014 | Myeloperoxidase (MPO) by Immunohistochemistry |
| MYF4 IHC | 2004017 | Myogenin (Myf4) by Immunohistochemistry |
| MYOGL IHC | 2004031 | Myoglobin by Immunohistochemistry |
| MYOG-S | 0020224 | Myoglobin, Serum |
| MYOG-U | 0020223 | Myoglobin, Urine |
| MYOSIN IHC | 2004034 | Myosin by Immunohistochemistry |
| NAPSIN IHC | 2008716 | Napsin A by Immunohistochemistry |
| NEUROF IHC | 2004049 | Neurofilament by Immunohistochemistry |
| NEUN IHC | 2004046 | Neuronal Nuclei (NeuN) by Immunohistochemistry |
| NKX2.2 IHC | 3004316 | NKX2.2 by Immunohistochemistry |
| NUT IHC | 3002780 | Nuclear Protein in Testis by Immunohistochemistry |
| OCT2 IHC | 2004061 | Octamer Transcription Factor-2 (Oct 2) by Immunohistochemistry |
| OCT3/4 IHC | 2004058 | Octamer Transcription Factor-3 and -4 (Oct 3/4) by Immunohistochemistry |
| OSTEO NMID | 0020728 | Osteocalcin by Electrochemiluminescent Immunoassay |
| P16 IHC | 2004064 | p16 by Immunohistochemistry |
| P40 IHC | 2010142 | P40 by Immunohistochemistry |
| P501S IHC | 3001890 | P501S (Prostein) by IHC |
| P504S IHC | 2004076 | P504S (AMACR) by Immunohistochemistry |
| P53 IHC | 2004522 | p53 by Immunohistochemistry |
| P57 IHC | 2005542 | P57 by Immunohistochemistry |
| P63 IHC | 2004073 | p63 by Immunohistochemistry |
| PHFTAU IHC | 2004094 | Paired Helical Filament-Tau (PHF-Tau) by Immunohistochemistry |
| AE1,3 IHC | 2003433 | Pan Cytokeratin (AE1,3) by Immunohistochemistry |
| PTH IHC | 2004118 | Parathyroid Hormone (PTH) by Immunohistochemistry |
| PTH FNA | 2001491 | Parathyroid Hormone, Fine Needle Aspiration (FNA) |
| PTH-INT | 0070346 | Parathyroid Hormone, Intact |
| PTHI | 0070172 | Parathyroid Hormone, Intact with Calcium |
| PAX5 IHC | 2004082 | Pax-5 by Immunohistochemistry |
| PAX8 IHC | 2010787 | PAX8 by Immunohistochemistry |
| PD1 IHC | 2004085 | PD-1 by Immunohistochemistry |
| PIN4 IHC | 2010045 | PIN4 Prostate Triple Stain by Immunohistochemistry |
| PLAP IHC | 2004097 | Placental Alkaline Phosphatase (PLAP) by Immunohistochemistry |
| PRO BNP | 0050083 | proBrain Natriuretic Peptide, NT |
| PR IHC | 2004525 | Progesterone Receptor (PR) by Immunohistochemistry |
| PROLAC IHC | 2004109 | Prolactin by Immunohistochemistry |
| PSA IHC | 2004112 | Prostate Specific Antigen by Immunohistochemistry |
| PSA FP | 0080206 | Prostate Specific Antigen, Free Percentage (Includes Free PSA and Total PSA) |
| PSA | 0070121 | Prostate Specific Antigen, Total |
| PSA SCN | 0070234 | Prostate Specific Antigen, Total - Medicare Screening |
| TPSAR | 0080264 | Prostate Specific Antigen, Total with Reflex to Free PSA (Includes Free Percentage) |
| PSA ULTRA | 0098581 | Prostate Specific Antigen, Ultrasensitive |
| PAP IHC | 2004079 | Prostatic Acid Phosphatase (PAP) by Immunohistochemistry |
| RCC IHC | 2004124 | Renal Cell Carcinoma (RCC) Antigen by Immunohistochemistry |
| ROMA | 2012618 | Risk of Ovarian Malignancy Algorithm |
| ROS1 IP | 2008414 | ROS1 with Interpretation by Immunohistochemistry with Reflex to FISH if Equivocal or Positive |
| S100 IHC | 2004127 | S-100 Protein by Immunohistochemistry (DAB Detection) |
| S100 R IHC | 3003733 | S-100 Protein by Immunohistochemistry (Red Detection) |
| S 100B | 2001766 | S-100B Protein, Serum |
| S100B CSF | 2013358 | S100B, CSF |
| SALL4 IHC | 2005432 | Sal-like 4 (SALL4) by Immunohistochemistry |
| SHBG | 0099375 | Sex Hormone Binding Globulin |
| SV40 IHC | 2004137 | Simian Virus 40 (SV-40) by Immunohistochemistry |
| SMA IHC | 2004130 | Smooth Muscle Actin (SMA) by Immunohistochemistry |
| SOX10 IHC | 3001562 | SOX-10 By Immunohistochemistry (DAB Detection) |
| SOX10R IHC | 3003737 | SOX-10 by Immunohistochemistry (Red Detection) |
| SOX11 IHC | 2012561 | SOX11 by Immunohistochemistry |
| STAT6 IHC | 2013251 | STAT6 by Immunohistochemistry |
| SP REQUEST | 8090010 | Surgical Pathology Tissue |
| SYNAPT IHC | 2004139 | Synaptophysin by Immunohistochemistry |
| T UPTAKE | 3005977 | T Uptake |
| TIA1 IHC | 2004148 | T-cell Intracytoplasmic Antigen (TIA-1) by Immunohistochemistry |
| TCL1 IHC | 3003595 | TCL1 by Immunohistochemistry |
| TCR D IHC | 3001896 | TCR DELTA by Immunohistochemistry |
| TDP43 IHC | 3003407 | TDP43 by Immunohistochemistry |
| TDT IHC | 2004142 | TdT by Immunohistochemistry |
| TESTOS | 0070130 | Testosterone (Adult Males or Individuals on Testosterone Hormone Therapy) |
| BIO T | 0070102 | Testosterone, Bioavailable and Total, Includes Sex Hormone-Binding Globulin (Adult Males or Individuals on Testosterone Hormone Therapy) |
| FREE T2 | 0070111 | Testosterone, Free (Adult Males or Individuals on Testosterone Hormone Therapy) |
| FREE T | 0070109 | Testosterone, Free and Total, Includes Sex Hormone-Binding Globulin (Adult Males or Individuals on Testosterone Hormone Therapy) |
| TFE3 IHC | 2010688 | TFE3 by Immunohistochemistry |
| ATHYG | 0050105 | Thyroglobulin Antibody |
| THYRO IHC | 2004145 | Thyroglobulin by Immunohistochemistry |
| THYRO | 0050645 | Thyroid Antibodies |
| AMICR | 0050075 | Thyroid Peroxidase (TPO) Antibody |
| TR AB | 2002734 | Thyroid Stimulating Hormone Receptor Antibody (TRAb) |
| TTF1 IHC | 2004166 | Thyroid Transcription Factor (TTF-1) by Immunohistochemistry |
| FT4 | 0070138 | Thyroxine, Free (Free T4) |
| T4 TOTAL | 3005978 | Thyroxine, Total T4 |
| TLR | 0051589 | Toll-Like Receptor Function |
| TOXOPL IHC | 2004157 | Toxoplasma gondii by Immunohistochemistry |
| TPALL IHC | 3001704 | Treponema Pallidum by IHC |
| FT3 | 0070133 | Triiodothyronine, Free (Free T3) |
| T3 TOTAL | 0070474 | Triiodothyronine, Total (Total T3) |
| CTNT | 3001831 | Troponin T (cTnT) 5th Generation |
| TRYPS IHC | 3003458 | Trypsin by Immunohistochemistry |
| TNFA PLA | 3002618 | Tumor Necrosis Factor - alpha, Plasma |
| TNFA DO | 0051539 | Tumor Necrosis Factor - alpha, Serum |
| UBIQUI IHC | 2004169 | Ubiquitin by Immunohistochemistry |
| UROPII IHC | 3001149 | Uroplakin II by Immunohistochemistry |
| VIMENT IHC | 2004181 | Vimentin by Immunohistochemistry |
| WT1 IHC | 2004184 | Wilms Tumor (WT-1), N-terminus by Immunohistochemistry |
