Reference ranges for 400 biomarkers, with clinical context
Compare normal lab ranges from WHO, Mayo Clinic, Labcorp, RCPA, NORIP and more side by side. Use the built-in unit converter and explore pediatric (CALIPER) data and adult sex-specific intervals. About half of the biomarker pages also include what the test is useful for and an “About” section with clinical context. Free to browse, no sign-in required.
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Blood
247 biomarkers
Hematology, chemistry, lipids, iron studies
Hormones
53 biomarkers
Thyroid, sex, adrenal, pituitary
Vitamins
30 biomarkers
Fat-soluble, water-soluble, minerals
Urine
30 biomarkers
Urinalysis, electrolytes, protein
Feces
5 biomarkers
Occult blood, calprotectin, microbiology
Vitals
2 biomarkers
Heart rate, blood pressure, oxygen
Body
2 biomarkers
Weight, height, BMI, composition
Other
31 biomarkers
Everything else
Explore common tests
A starting point for browsing the library.
All biomarkers
400 biomarkers from Mayo, ARUP, Quest, Labcorp and 8+ international sources. Filter by category above, or browse alphabetically below.
A
ACTH (Adrenocorticotropic Hormone)
Alanine (Amino Acid)
Alanine Aminotransferase (ALT)
Albumin
Albumin-to-Creatinine Ratio (ACR)
Albumin/Globulin Ratio (A/G)
Aldosterone
Alkaline Phosphatase (ALP)
Alpha-1 Antitrypsin
Alpha-2 Macroglobulin
Alpha-Fetoprotein (AFP)
Aluminum
Amikacin Peak
Amikacin Trough
Ammonia
Amylase
Amylase (Pancreatic Isoenzyme)
Androstenedione
Angiotensin Converting Enzyme
Anion Gap
Anti-Cardiolipin IgG
Anti-Cardiolipin IgM
Anti-CCP Antibody
Anti-Centromere Antibody
Anti-dsDNA Antibody
Anti-Jo-1 Antibody
Anti-Liver Kidney Microsomal Ab
Anti-Müllerian Hormone (AMH)
Anti-RNP Antibody
Anti-Scl-70 Antibody
Anti-Smith Antibody
Anti-SSA/Ro Antibody
Anti-SSB/La Antibody
Anti-Tissue Transglutaminase IgA
Anti-Tissue Transglutaminase IgG
Anti-Xa Level (Heparin)
Antinuclear Antibody (ANA)
Antithrombin III
ApoB/ApoA1 Ratio
Apolipoprotein A1 (ApoA1)
Apolipoprotein B (ApoB)
Arachidonic Acid (AA)
Arginine
Arsenic (As)
Asparagine
Aspartate Aminotransferase (AST)
Aspartic Acid
Aspergillus Galactomannan
Asymmetric Dimethylarginine
B
B-type Natriuretic Peptide (BNP)
Basophils (Absolute)
Beta-2 Glycoprotein I IgG
Beta-2 Glycoprotein I IgM
Beta-2 Microglobulin (Serum)
Beta-2 Microglobulin (Urine)
Beta-D-Glucan
Beta-hCG
Bicarbonate (CO₂)
Bile Acids (Total)
Bilirubin (Direct)
Bilirubin (Total)
Biotin (Vitamin B7)
Blood Pressure (Diastolic)
Blood Pressure (Systolic)
Blood Urea Nitrogen (BUN)
Body Mass Index (BMI)
Bone-Specific Alkaline Phosphatase
Boron
BUN/Creatinine Ratio
C
c-ANCA
C-Peptide
C-Reactive Protein (CRP)
C-Terminal Telopeptide (CTX)
CA 15-3
CA 19-9
CA 27-29
CA-125
Cadmium
Calcitonin
Calcium (Ca)
Calprotectin
Carbamazepine
Carcinoembryonic Antigen (CEA)
Ceruloplasmin
Chloride (Cl)
Cholinesterase (Butyrylcholinesterase)
Chromium
Chromogranin A
Citrulline
Cobalt
Coenzyme Q10 (CoQ10)
Complement C3
Complement C4
Complement CH50
Copeptin
Copper (Cu)
Copper (Urine 24h)
Cortisol (AM)
Cortisol (Free, 24h Urine)
Cortisol (Late Night Salivary)
Cotinine
Creatine Kinase (CK)
Creatine Kinase MB (CK-MB)
Creatinine
Creatinine Clearance (24h, BSA-Normalized)
Creatinine Clearance (24h, Unadjusted)
CSF IgG Index
CSF Oligoclonal Bands
CSF Protein
Cyclosporine
Cystatin C
Cysteine (Total)
D
E
F
G
H
I
IA-2 Antibody
IgG Subclass 1
IgG Subclass 2
IgG Subclass 3
IgG Subclass 4
Immature Granulocytes (Absolute)
Immature Reticulocyte Fraction
Immunoglobulin A (IgA)
Immunoglobulin E (IgE)
Immunoglobulin G (IgG)
Immunoglobulin M (IgM)
Inhibin A
Inhibin B
Insulin (Fasting)
Insulin Antibody
Insulin-Like Growth Factor 1 (IGF-1)
Insulin-Like Growth Factor Binding Protein 3
Intact Proinsulin
Intact PTH (1-84)
Interleukin-1 Beta
Interleukin-10
Interleukin-6 (IL-6)
Interleukin-8
International Normalized Ratio (INR)
Iodine (Urine)
Ionized Calcium (Ca²⁺)
Iron (Fe)
Isoleucine
L
M
N
P
p-ANCA
Pancreatic Elastase (Serum)
Parathyroid Hormone (PTH)
Partial Thromboplastin Time (PTT)
Phenobarbital
Phenylalanine
Phenytoin
Phenytoin (Free)
Phosphorus (P)
PIVKA-II
Plasma Metanephrines (Free)
Plasma Normetanephrine (Free)
Plasma Renin Activity (PRA)
Plasminogen
Plasminogen Activator Inhibitor-1
Platelets (PLT)
Potassium (K)
Prealbumin (Transthyretin)
Pregnenolone
Procalcitonin
Procollagen Type 1 N-Terminal Propeptide
Progesterone
Prolactin (PRL)
Proline
Prostate Specific Antigen (PSA)
Protein C Activity
Protein S (Free)
Protein S Activity
Prothrombin Time (PT)
PTH-Related Peptide
Pyruvate (Plasma)
Pyruvate (Whole Blood)
R
S
Salicylate Level
Selenium (Se)
Serine
Serotonin (Whole Blood)
Serum Free Light Chains (Kappa)
Serum Free Light Chains (Lambda)
Serum Osmolality
Serum Viscosity
Sex Hormone Binding Globulin (SHBG)
Sirolimus
Small Dense LDL
Sodium (Na)
Soluble Transferrin Receptor
Specific IgE - Cat Dander (E1)
Specific IgE - Cockroach
Specific IgE - Cow Milk (F2)
Specific IgE - Dog Dander (E5)
Specific IgE - Dust Mite (D1)
Specific IgE - Egg White (F1)
Specific IgE - Fish Mix
Specific IgE - Grass Pollen Mix
Specific IgE - Latex
Specific IgE - Mold Mix
Specific IgE - Peanut (F13)
Specific IgE - Shellfish Mix
Specific IgE - Soy (F14)
Specific IgE - Tree Pollen Mix
Specific IgE - Wheat (F4)
Squamous Cell Carcinoma Antigen
T
Tacrolimus
Testosterone (Free)
Testosterone (Total)
Thallium
Theophylline
Threonine
Thrombin Time (TT)
Thrombopoietin
Thyroglobulin (Tg)
Thyroglobulin Antibodies (TgAb)
Thyroid Peroxidase Antibodies (TPO)
Thyroid Stimulating Hormone (TSH)
Tobramycin Peak
Tobramycin Trough
Topiramate
Total Cholesterol
Total Iron Binding Capacity (TIBC)
Total Protein
Total T3 (Triiodothyronine)
Total T4 (Thyroxine)
Transferrin
Transferrin Saturation
Transforming Growth Factor Beta-1
Triglycerides
Troponin I (High-Sensitivity)
Troponin T (High-Sensitivity)
Tryptase
Tryptophan
Tyrosine
U
Unsaturated Iron Binding Capacity (UIBC)
Uric Acid
Urine Calcium/Creatinine Ratio
Urine Chloride
Urine Citrate (24h)
Urine Creatinine
Urine Magnesium (24h)
Urine Metanephrines (24h)
Urine Normetanephrines (24h)
Urine Osmolality
Urine Oxalate (24h)
Urine pH
Urine Phosphorus (24h)
Urine Potassium
Urine Protein Electrophoresis
Urine Protein/Creatinine Ratio
Urine Sodium
Urine Specific Gravity
Urine Uric Acid (24h)
V
Valine
Valproic Acid
Vancomycin Trough
Vanillylmandelic Acid (24h Urine)
Vascular Endothelial Growth Factor
Vasoactive Intestinal Peptide
Vitamin A (Retinol)
Vitamin B1 (Thiamine)
Vitamin B12 (Cobalamin)
Vitamin B2 (Riboflavin)
Vitamin B3 (Niacin)
Vitamin B5 (Pantothenic Acid)
Vitamin B6 (PLP)
Vitamin C (Ascorbic Acid)
Vitamin D, 1,25-Dihydroxy
Vitamin D, 25-Hydroxy
Vitamin E (Alpha-Tocopherol)
Vitamin K1 (Phylloquinone)
VLDL Cholesterol
Von Willebrand Factor Activity
Von Willebrand Factor Antigen