Biological Markers / Agents

1 Methylhistidine (Urine) 11-Deoxycortisol 17-Hydroxycorticosteroids 17-Hydroxyprogesterone 2,3 Diphosphoglycerate (2,3-DPG) 24, 25-Dihydroxy Vitamin D3 3 Methylhistidine (Urine) Abnormal Genetic or Biochemical Markers Acetoacetate Acetone Acetylcholine Acetylcholine Receptor Antibody (AChR) Acid Phosphatase Adenosine triphosphate Adenovirus Serology Adrenocorticotrophic hormone Alanine Alanine (Urine) Alanine Aminotransferase (ALT) Albumin (Blood) Albumin (Cerebrospinal Fluid, CSF) Aldosterone Alkaline Phosphatase (ALP) Alpha 1-antitrypsin alpha 2-macroglobulin Alpha Amino N Buryric Acid (Urine) Alpha Aminoadipic Acid (Urine) Alpha-1 Antintrypsin (AAT) alpha-1-Fetoprotein Alpha-1-Globulin (Blood, Serum) Alpha-1-Globulin (Cerebrospinal Fluid, CSF) Alpha-2-Globulin (Blood, Serum) Alpha-2-Globulin (Cerebrospinal Fluid, CSF) alpha-Aminobutyric acid Alpha-Fetoprotein (Amniotic Fluid, Following Amniocentesis at 12 to 16 Weeks) Alpha-Fetoprotein (Maternal Serum, Pregnancy 15-18 Weeks) Alpha-Fetoprotein (Non-Pregnant, Serum) alpha-Ketonic acids, adult alpha-Tocopherol (Vitamin E) Aluminum Amino acids Ammonia Amniotic Fluid Bilirubin Amniotic Fluid Foam Stability Index Amniotic Fluid Index (AFI) Amniotic Fluid Lecithin to Sphingomyelin Ratio (L to S Ratio) Amylase Androstenedione Androsterone Angiotensin Converting Enzyme (ACE) Angiotensin I Angiotensin II Anion Gap (Excluding Potassium) Anion Gap (Including Potassium) Antiglomerular Basement Membrane (AGBM) Antibodies Antihemophilic factor Antithrombin 111 (AT-111) Apolipoprotein A (Apo A) Apolipoprotein B (Apo B) Arden Ratio (Ratio of Maximum Retinal Potential in Light Versus Dark) Arginine Arginine (Urine) Arsenic Ascaris Lumbricoides (Ascariasis on Stool or Sputum Smear) Ascorbic acid (Vitamin C) Asparagine (Urine) Aspartate Aminotransferase (AST) Aspartic acid Aspartic acid (in WBCs) Aspartic Acid (Urine) Aspergillus Fumigatus, Flavus or Terreus on Smear Avian Influenza Virus Culture or PCR (H5N1 Culture or Polymerase Chain Reaction) B Cells ( CD19(plus)) B Cells (CD19 Percentage) Band or Stab cells Basophils Beta Globulin beta-2-microglobulin beta-Carotene Beta-Globulin (Cerebrospinal Fluid, CSF) beta-Hydroxybutyric acid Bicarbonate Bile acids Bilirubin Bilirubin (Conjugated Fraction) Bilirubin (Unconjugated Fraction) Biotin (Vitamin H) blank Blank 3 Blank 30 Blank 4 Blank 5 Blank 6 Blank 7 Blank 8 Blank 9 Blood pH Blood Urea Nitrogen Blood Urea Nitrogen (BUN) Bradykinin Bromide C-Peptide C-reactive protein Cadmium CALCIFEDIOL (25-hydroxy) Calciferol (Vitamin D2) Calcitonin (CT) Calcitriol (1, 25-dihydroxy) Calcium (Blood, Total) Calcium Oxalate Crystals (Urine) cAMP Candida Albicans Hyphae on Smear Carbon Dioxide Total Content (TCO2) Carbon Monoxide (CO) Carboxyhemoglobin(as HbCO) Carcinoembryonic antigen Carnosine (Urine) Carotenoids CD4 to CD8 CD4 to CD8 Ratio CD4(plus) T Cells Cephalin Cerebrospinal Fluid Immunoglobulin G (IgG) Cerebrospinal Fluid Lactate Dehydrogenase Cerebrospinal Fluid Leukocytes Cerebrospinal Fluid Lymphocyte Differential Cerebrospinal Fluid Monocyte Differential Cerebrospinal Fluid Neutrophil Differential Cerebrospinal Fluid Total Protein Ceruloplasmin cGMP Chlamydia trachomatis Chlamydial IgG Antibodies Chloride (Blood, Cl) Chloride (Stools, Cl) Chloride (Sweat, Cl) Cholecalciferol (Vitamin D3) Cholecystokinin (pancreozymin) Cholesterol (Total) Cholesterol Crystals (Urine) Choline ( total) Cholinesterase Chorionic gonadotropin Christmas factor Citric acid Citrulline Citrulline (Urine) Coagulation Bleeding Time Cobalamin (Vitamin B12) Cocarboxylase Complement Component C1q Complement Component C1r Complement Component C1s (C1 esterase) Complement Component C2 Complement Component C3( b1C-globulin) Complement Component C4 (b1E-globulin) Complement Component C4 binding protein Complement Component C5 (b1F-globulin) Complement Component C6 Complement Component C7 Complement Component C8 Complement Component C9 Complement Component factor B (C3 proactivator) Complete Platelet Aggregation in Response to Collagen, Thrombin, Ristocetin Compound S Condylomata Accuminata Typical Clinical Lesions Copper Coproporphyrin (Blood) Corticosteroids Corticosterone Cortisol Coxiella Burnetti Compliment Fixation (Complement Fixation for Q Fever) Coxsackie Virus A Serology (Specific Antibodies for Echovirus) Coxsackie Virus B Serology (Specific Antibodies for Coxsackie Virus B) Creatine (Blood) Creatine Kinase (CK) Creatine Kinase1 (CK-BB) Isoenzyme Creatine Kinase2 (CK-MB) Isoenzyme Creatine Kinase3 (CK-MM) Isoenzyme Creatinine (Blood) Creatinine (in Amniotic Fluid) Creatinine Clearance Rate Cryptococcus Neoformans on Smear Cryptosporidium Parvum (Cryptosporidiosis on Stool Smear) Cyanide Cysteine Cystine (Urine) Cystine Crystals (Urine) Cytomegalovirus Serology (Specific Antibodies for HHV5) D Xylose (Blood Concentration, 1 Hour Post Administration) D Xylose (Blood Concentration, 2 Hours Post Administratio) D Xylose (Urine, Percentage of Total Administered, After 5 Hours) d-Aminolevulinic acid D-Dimer Dehydroepiandrosterone(DHEA) DHEA sulfate Dihydrotestosterone (DHT) Diphosphoglycerate (phosphate) DNA Dopamine Echinococcus Granulosus Antigen Entamoeba Hystolytica in Stool Smear (Amebiasis) Enterovirus Growths on PCR Enzymes, total Eosinophils Epidermal growth factor (EGF) Epinephrine Epstein Barr Virus Serology (Specific Antibodies for Human Herpes Virus 4) Ergothioneine Erythrocyte Sedimentation Rate Erythropoietin (Ep) Estradiol (E2) Estriol (Pregnancy First Trimester, Blood E3) estriol (Pregnancy Second Trimester, Blood E3) Estriol (Pregnancy Third Trimester, Blood E3) Estrogen Estrone (E1) Ethanol Expiratory Reserve Volume (ERV) Factor II (Prothrombin, Percentage of Normal Value) Factor IX (Christmas Factor, Percentage of Normal Value) Factor V (Labile Factor, Proaccelerin, Percentage of Normal Value) Factor VII (Stable Factor, Proconvertin, Percentage of Normal Value) Factor VIII (Antihemophilic Globulin, Percentage of Normal Value) Factor X (Stuart Prower Factor, Percentage of Normal Value) Factor XI (Plasma Thromboplastin Antecedent, Percentage of Normal Value) Factor XII (Hageman Factor, Percentage of Normal Value) Fatty acids, esterified Fatty acids, nonesterified (free) Fatty acids, total Fecal Blood Fecal Chymotrypsin Fecal Fat Fern Shaped Crystals Ferritin Fetal Biophysical Profile (FBP) Score Fetal Fibronectin (Pregnancy Weaks 24 to 34) Fetal Heart Rate (Beats Per Minute) Fetal Hemoglobin (Hemoglobin F, HbF) Fetal Nuchal Thickness on Ultrasound (Pregnancy Weeks 10 to 14) Fibrin Monomers Fibrin Split Products Fibrin stabilizing factor Fibrinogen Fibrinopeptide A (FPA) Fitzgerald factor Flavine adenine dinucleotide Fletcher factor Fluoride Folate Folic acid Folic Acid (Folate) Follicle-Stimulating Hormone (FSH) Forced Expiratory Flow Between 25% and 75% of FVC (FEF25-75) Forced Expiratory Volume At One Second (FEV1) Forced Expiratory Volume At Three Seconds (FEV3) Forced Expiratory Volume At Two Seconds (FEV2) Forced Vital Capacity (FVC) Free Erythrocyte Protoporphyrin (FEP) Fructose Functional Residual Capacity Furosemide glucuronide Galactose (children) Gamma Globulin (Blood, Serum) Gamma-Globulin (Cerebrospinal Fluid, CSF) Gamma-Glutamyltransferase (GGT) Gastric inhibitory peptide (GIP) Gastrin Giardia Lamblia Microscopy (Stool or Duodenal Biopsy) Gliadin Antibodies (Gliadin IgA and IgG) Globulin Glucagon Glucosamine Glucose (Blood) Glucose (Cerebrospinal Fluid) Glucose 6 Phosphate Dehydrogenase (G6PD) Glucuronic acid Glutamic acid Glutamic Acid (Urine) Glutamine Glutamine (Cerebrospinal Fluid, CSF) Glutamine (Urine) Glutathione, reduced Glycerol, free Glycine Glycine (Urine) Glycogen Glycoprotein, acid Gonadotropic releasing hormone Guanidine Haemophilus Ducreyi Culture (Culture for Chancroid) Hageman factor Haptoglobin haptoglobin (Hp) Hb A (Maternal Blood in Fetal Stools, Brownish Yellow Solution) Hb F (Fetal Blood in Stools, Pink Solution) Heinz Bodies Helper T cells (CD3(plus), CD4(plus)) Hemoglobin (Hb) Hemoglobin (Hb) A2 Hemoglobin A1c (HbA1c) Hemoglobin S Hepatitis B Virus Serology (Specific Antibodies for HBV) Herpes Simplex Virus Serology (Specific Antibody for HSV) Hexosephosphate P High Density Lipoprotein (HDL) Histamine Histidine Histidine (Urine) Histoplasma Capsulatum Antibody (Specific Antibody for Histoplasmosis) HIV Serology (Specific Antibodies for HIV, AIDS) Homocysteine Human Chorionic Gonadotropin (Blood hCG) Human Placental Lactogen (HPL, Pregnancy Weaks 25 to 30) Human Placental Lactogen (hPL, Pregnancy Weaks 31 to 35) Human Placental Lactogen (hPL, Pregnancy Weaks 36 to 40) Human Placental Lactogen (HPL, Pregnancy Weaks 5 to 25) Hydrogen ion(pH 7.4) Hydroxyproline (Urine Excretion Rate) IgG (Cerebrospinal Fluid, CSF) IgM (Cerebrospinal Fluid, CSF) Immunoglobulin A (IgA) Immunoglobulin D (IgD) Immunoglobulin E (IgE) Immunoglobulin G (IgG) Immunoglobulin M (IgM) Increase in Glucose Concentration Indican Influenza Viral Serology (Specific Antibodies for Influenza Virus) Inositol Inspiratory Capacity (IC) Insulin Insulin-like growth factor Intracranial Pressure (Cerebrospinal Fluid Pressure, CSF Pressure) Iodine, total Iron Isoleucine Isoleucine (Urine) Ketone bodies L-Lactate Lactate Dehydrogenase (LDH) Lactic Acid (Cerebrospinal Fluid, L-Lactate) Lactic Acid (Venous Blood) Lead Lecithin Leishmania Donovani (Leishmaniasis Positive on Giemsa Stained Smear and Culture) Leptin Leptospira Interrogans Serology (Specific Antibodies for Weils Disease) Leucine Leukocytes (Stool) Lipase Lipids, total Lipoprotein (Sr 12-20) Lithium Low Density Lipoprotein (LDL) Luteinizing Hormone (LH) Lyme Disease Serology (Specific Antibodies for Borrelia Burgdorferi) Lymphocytes Lymphogranuloma Venereum on Culture (Chlamydia Trachomatis Serotypes L1, L2, L3 on Culture Study) Lysine Lysine (Urine) Lysozyme (Muramidase, Urine) Magnesium (Mg, Blood) Magnesium (Mg, Stools) Malic acid Manganese Maximum Voluntary Ventilation (MVV) Mean Platelet Volume Measles Serology (Specific Antibodies to Rubeola Virus) Melatonin Mercury Metamyelocytes Methemoglobin Methemoglobulin Methionine Methionine (Urine) Methyl guanidine MIP-1a MIP-1b Molluscum Contagiosum on Microscopy (Molluscum Bodies on Histology) Monocytes Moraxella Mucopolysaccharides Mucoproteins Mucorales on Smear (Mucormycosis) Mumps Virus Serology (Specific Antibodies to Mumps Virus) Mycobacterium Avium Intracellulare Mycobacterium Chelonei Mycobacterium Fortuitum Mycobacterium Kansasii Mycobacterium Leprae (Leprosy) Mycobacterium Marinum Mycobacterium Tuberculosis Mycobacterium Xenopi Myoglobin Natural Killer Cells ( CD16(plus)) Natural Killer Cells (CD16 Percentage) Neisseria Gonorrhoeae on Microscopy (Gram Stain for Gonorrhea) Neisseria Gonorrhoreae Nerve growth factor (NGF) Niacin Nitrogen Norepinephrine Normal A and B Waves on Retinograph Normal Nystagmus Response Normal Oculovestibular Reflex Nucleotide, total Number of Fetal Accelerations (On CTG) Number of Late Decelerations (On CTG) Oligoclonal Bands (Cerebrospinal Fluid, CSF) Ornithine Ornithine (Urine) Osmolality, Blood (Serum Osmolality) Osmolality, Stools (Fecal Osmolality) Oxygen (respiratory gas) Oxygen Saturation (Arterial Blood, SaO2) Oxygen Saturation (Fetus, More Than 36 Weeks Gestation) Oxytocin Pancreatic polypeptide Pantothenic acid (Vitamin B5) Para-aminobenzoic acid Parainfluenza Virus Serology (Specific Antibodies for Parainfluenza Virus) Parathyroid hormone (PTH, Parathormone) Paroxysmal Nocturnal Hemoglobinuria Partial Pressure of Arterial Carbon Dioxide (PaCO2) Partial Pressure of Arterial Oxygen (PaO2) Peak Expiratory Flow Rate (PEFR) Peak Inspiratory Flow Rate (PIFR) Pentose, phosphorated Percentage NaCl at which Hemolysis begins Percentage NaCl at which Hemolysis is complete Phenol, free Phenylalanine Phenylalanine (Urine) Phosphate (PO4, Phosphorus, P) Phosphoethanolamine (Urine) Phospholipid Phosphoserine (Urine) Phytanic acid Plasma Cells Plasma Clot Lysis Time Plasma thromboplastin antecedent Plasminogen Plasmodium Falciparum, Malariae, Vivax or Ovale Smear Positive (Malaria Giemsa Stain Positive) Platelets Polysaccharides, total Porphobilinogen (Blood) Positive Mantoux Test (Reactive Tuberculin Test, Localized Skin Induration and Redness) Potassium (K, Blood) Potassium (K, Stools) Prealbumin Pregnanediol (Urine) Pregnanetriol (Urine) Pregnenolone Proaccelerin Proconvertin Progesterone Progesterone (male) Proinsulin Prolactin Prolactin (male) <20 x 10-9 Proline Proline (Urine) Prostaglandins Prostate Specific Antigen (PSA) Protein C Protein S Protein, Total (Blood, Serum) Prothrombin Fragment (F1 plus 2) Prothrombin Time Protoporphyrin Pseudoglobulin I Pseudoglobulin II Purine, total Pyridoxine (Vitamin B6) Pyrimidine nucleotide Pyruvate Kinase (PK) Pyruvic acid Rabies Virus Serology (Specific Antibodies for Rabies Virus) RANTES RBC Mass Red Blood Cell (RBC) Volume Red Blood Cell Count (RBC) Red Blood Cells (RBC) Red Blood Distribution Width (RDW) Relaxin Renin Residual Volume (RV) Respiratory Syncytial Virus Serology (Specific Antibodies for RSV) Reticulocytes Retinol (Vitamin A) Rhinovirus Serology (Specific Antibodies to Rhinovirus) Riboflavin (Vitamin B2) Rickettsia Akari Microimmunofluorescence (Immunofluorescent Antibodies to Rickettsial Pox) Rickettsia Australis Complement Fixation (Complement Factor for Queensland Tick Typhus) Rickettsia Conorii Antibody (Specific Antibody for Buotonneuse Fever) Rickettsia Prowazekii Antibody (Specific Antibody for Epidemic Typhus) Rickettsia Rickettsii IFA or Agglutination (Antibody for Rocky Mountain Spotted Fever) Rickettsia Tsutsugamushi Complement or Immunofuorescence (Serology Positive to Scrub Typhus) Rickettsia Typhi Antibody (Specific Antibody for Endemic Flea Borne Typhus) RNA Rotavirus Antibodies on Immunoassay Rubella Virus Serology (Specific Antibodies to Rubella Virus) Sarcoptes Scabiei (Sarcoptes on Smear) SARS CoV Antibody (Antibodies to Coronavirus) Schistosoma Mansoni (Schistosomiasis on Microscopy) Secretin Segmented Neutrophils Serine Serine (Urine) Serotonin (5-hydroxytryptamine) Silicon Sodium (Na, Blood) Sodium (Na, Stools) Sodium (Na, Sweat) Solids, total Somatotropin (Growth Hormone) Sphingomyelin Stool Mucus Stool pH Stool Reducing Sugars Streptococcal Culture Positive Strongyloides Stercoralis (Strongyloidiasis on Microscopy) Stuart factor Subjective Urine Cloudiness Succinic acid Sugar, total Sulfates, inorganic Sulfur, total Supressor T Cells (CD3(plus), CD8(plus)) Syphilis Serology (CSF VDRL) T-Suppressor (CD8) Cells Taurine Taurine (Urine) Template Bleeding Time Testosterone Testosterone (male) Thiamine (Vitamin B1) Thiocyanate Threonine Threonine (Urine) Thrombin Time Thyroglobulin (Tg) Thyroid hormones Thyroid Stimulating Horomone (TSH) Thyrotropin-releasing hormone Thyroxine (Total T4) Thyroxine Binding Globulin (TBG, Thyroid Binding Globulin, Blood) Thyroxine Index (Free T4) Thyroxine-binding globulin Thyroxine-binding prealbumin Tin Tinea in Smear (Epidermophytons, Candida, Trichophyton Mentagrophytes, Microsporums, Trichophyton Tonsurans or Trichophyton Rubrum) Tissue thromboplastin Total Lung Capacity (TLC) Total Porphyrins (Blood) Total T cells (CD3(plus)) Toxoplasma Gondii Serology Antibody (Specific Antibody for Toxoplasmosis) Transcortin Transferrin Treponema Pallidum Specific Antibodies (FTA ABS, Syphilis Serology) Treponema Pertenue Serology (Specific Antibody for Yaws) Trichomonas Vaginalis in Smear (Vaginal or Urethral Smear) Triglycerides Triiodothyronine (Free T3) Triiodothyronine (Total T3) Triiodothyronine Uptake Percentage Triple Phosphate Crystals (Urine) Troponin T (Cardiac Specific) Trypanosoma Cruzi (Cells on Blood or Spinal Fluid Smear) Tryptophan Tyrosine Tyrosine (Urine) Unrine Granular Casts Urea Uric Acid Crystals (Urine) Uric Acid, Blood Urine Urine 5-Hydroxindoleacetic Acid Urine Albumin Urine Amylase Urine B2 Microglobulin Urine bilirubin Urine Chloride Urine Creatinine Urine Crystals (Total) Urine Cystine Excretion Rate Urine Epethelial Cells Urine Estdiol Urine Estradiol (E2) Urine Estriol (E3) Urine Fatty Cast Urine glucose Urine Haemoglobin (Hb) Urine Human Chorionic Gonadotropin (hCG) Urine Hyaline Casts Urine Ketone Urine Leukocyte Esterase Urine Magnesium (Mg) Urine Nitrate Urine Osmolality Urine Oxalate Urine Potassium (K) Urine Red Blood Cell Casts Urine Red Blood Cells Urine Sodium Urine Specific Gravity (SG) Urine Uric Acid Urine Vanillylmandelic Acid (VMA) Urine White Blood Cell Casts Urine White Blood Cells Urobilinogen (Stools) Urobilinogen (Urine) Uroporphyrin Uroporphyrin (Blood) Valine Valine (Urine) Varicella Virus Serology (Specific Antibodies Against Chicken Pox Virus) Vasointestinal peptide (VIP) Vasopressin Vital Capacity (VC) Vitamin B12 (VB12) von Willebrand factor Water White Blood Cell White Blood Cell (WBC) Zinc