Also called: Iron saturation test, TSAT, Iron binding percentage
Report
{context.blood_test.parameters} Parameters
What it checks
Report delivery
Test for
Age group
Commonly advised for
Transferrin Saturation is a calculated blood parameter that reflects the percentage of transferrin (the main iron-transport protein in blood) that is bound to iron. It provides a clearer picture of how efficiently iron is being transported and utilized in the body. This test is especially valuable when used alongside serum iron, ferritin, and TIBC to evaluate iron metabolism.
Unlike serum iron alone, transferrin saturation helps differentiate between iron deficiency, anemia of chronic disease, and iron overload disorders, making it an essential part of comprehensive anemia evaluation.
Why Is This Test Recommended?
Doctors recommend transferrin saturation testing when anemia is suspected, iron studies show inconsistent results, or when assessing conditions such as iron deficiency anemia, hemochromatosis, chronic infections, or liver disease. It is also useful for monitoring iron therapy effectiveness.
What Do the Results Indicate?
Low transferrin saturation suggests iron deficiency or impaired iron absorption. Elevated values may indicate iron overload conditions or excessive iron supplementation. Interpretation must consider other iron parameters and clinical context.
How Is the Test Performed and Prepared For?
A blood sample is collected, preferably in a fasting state for better accuracy. Iron supplements should be disclosed prior to testing.
Frequently Asked Questions (FAQs)
Is this test done alone?
Usually with iron studies; transferrin saturation is typically performed as part of a comprehensive iron panel that includes serum iron, ferritin, and TIBC to provide a complete assessment of iron status and metabolism.
Does low saturation always mean anemia?
Not always; while low transferrin saturation often indicates iron deficiency, it doesn't necessarily mean anemia is present yet, as iron stores may be depleted before hemoglobin levels drop significantly enough to cause clinical anemia.
Can inflammation affect results?
Yes, inflammation and chronic diseases can affect transferrin saturation results by altering iron distribution in the body, often causing lower values even when total body iron stores are adequate, which is why clinical context is important.
Is fasting necessary?
Recommended; fasting for 8-12 hours before the test is recommended because food intake, especially iron-rich meals, can temporarily elevate serum iron levels and affect the accuracy of transferrin saturation calculations.
Transferrin Saturation shows what share of your iron-carrying capacity is actually filled with iron. It is advised if:
Tapadia Diagnostic Centre in Mumbai offers NABL-accredited Transferrin Saturation% test from a Blood sample(s). Iron saturation test, TSAT, Iron binding percentage is also prescribed for Fatigue, weakness, dizziness, headaches, pale skin. Established in 1989, this doctor-led diagnostic centre ensures high accuracy. Home sample collection and walk-in facility available at our Mumbai center. Pay at the centre with no advance payment. Book online or visit us.
Transferrin Saturation% in Mumbai
Rated 4.6 on Google
From 6,477 patient reviews across our Hyderabad centres.
Every report, kept for you
Past reports stay in your account and can be downloaded again.
NABL accredited
Every result reviewed by a qualified pathologist before it reaches you.
Four decades of practice
A family-run diagnostic centre, trusted by doctors and households since 1989


Transferrin Saturation% in Vijayawada
Transferrin Saturation% in Visakhapatnam
Transferrin Saturation% in Ahmedabad
Transferrin Saturation% in Bengaluru
Transferrin Saturation% in Mumbai
Transferrin Saturation% in Secunderabad
Transferrin Saturation% in Karimnagar
Transferrin Saturation% in Hyderabad
Transferrin Saturation% in Warangal
Transferrin Saturation% in Aurangabad
HIV 1 & 2 Antibodies, Serum-Elisa Method in Mumbai
Dengue IgG, IgM Antibodies + NS1 Antigen-Rapid, Serum in Mumbai
Lipoprotein A (Lp A), Serum in Mumbai
Erythrocyte Sedimentation Rate (ESR) in Mumbai
Thyroxine Total (T4), Serum in Mumbai
Triiodothyronine Total (T3), Serum in Mumbai
CA 19.9 (Pancreatic Cancer Marker), Serum in Mumbai
NIPT with Microdeletions in Mumbai
NIPT Basic in Mumbai
Complete Blood Picture (CBP) in Mumbai
Serum Phosphorus Test in Mumbai
TIBC in Mumbai
Urology Profile in Mumbai
Beta HCG Free, Serum (Pregnancy Test) in Mumbai
Viral Screening in Mumbai
AFP Test in Mumbai
Microalbuminuria test in Mumbai
Diabetes Testing (FBS + PLBS) in Mumbai
Antithrombin III in Mumbai
D-dimer test in Mumbai
Creatine Kinase (CK) Test in Mumbai
AST Test in Mumbai
Cardiac Markers in Mumbai
Pap Smear - LBC in Mumbai
DVT Profile in Mumbai
Bleeding Time and Clotting Time (BT & CT) in Mumbai
Estradiol Test in Mumbai
hs-CRP Test in Mumbai
Alkaline Phosphatase (ALP) Test in Mumbai
Fertility Profile in Mumbai
Albumin blood test in Mumbai
Troponin T in Mumbai
Infertility Profile Extended in Mumbai
Electrolyte Panel in Mumbai
Anticardiolipin Antibodies (IgG) in Mumbai
PSA Test in Mumbai
FSH Test in Mumbai
STD Panel in Mumbai
PCOS Profile in Mumbai
Serum Iron Test in Mumbai
Cardiac Profile-III in Mumbai
Plasma Fibrinogen Test in Mumbai
HBsAg Test in Mumbai
Cardiac Biomarker Test in Mumbai
Herpes Simplex Virus (HSV) Types 1 and 2 Antibody Test in Mumbai
Antenatal Profile in Mumbai
Activated Partial Thromboplastin Time in Mumbai
Lipid Panel in Mumbai
Fine Needle Aspiration Cytology in Mumbai
CRP test in Mumbai
Joint Pain / SLE / Collagen Profile-I in Mumbai
PAPP-A Test in Mumbai
Insulin Test in Mumbai
Triple Screen Test in Mumbai
Anti-HCV Test in Mumbai
Basic Metabolic Panel (BMP) in Mumbai
Very low-density lipoprotein (VLDL) test in Mumbai
Free Testosterone in Mumbai
Triglycerides Test in Mumbai
Quad Screen in Mumbai
Folic Acid in Mumbai
Urinalysis in Mumbai
CEA Test in Mumbai
Ferritin Test in Mumbai
Transferrin Saturation% in Mumbai
Protein C Antigen in Mumbai
Alpha Feto Protein (AFP) - Fluid in Mumbai
CPK (MB) Test in Mumbai
Lupus Anticoagulant Testing in Mumbai
Reticulocyte Count in Mumbai
Infertility Profile-Basic in Mumbai
Beta hCG Test in Mumbai
DIABETIC PROFILE in Mumbai
LH Test in Mumbai
Anti-Müllerian Hormone (AMH) Test in Mumbai
Bile Salts and Bile Pigments, Urine in Mumbai
HbA1c in Mumbai
Vitamin D (1,25-Dihydroxyvitamin D) in Mumbai
Liver Function Test (LFT) in Mumbai
Anemia Profile Basic in Mumbai
Rheumatoid Factor in Mumbai
Widal Test in Mumbai
Bilirubin blood test in Mumbai
Inhibin A, Tumor Marker, Serum in Mumbai
Thyroid Function Tests in Mumbai
eGFR in Mumbai
Menopause Profile in Mumbai
EXTENDED DIABETIC PROFILE in Mumbai
LDH Test in Mumbai
Total Cholesterol Test in Mumbai
Random Blood Sugar Test in Mumbai
Total Protein Test in Mumbai
RPR test in Mumbai
Anti-dsDNA Test in Mumbai
HDL Cholesterol in Mumbai
Blood Type Test in Mumbai
ASO Titre in Mumbai
Blood Urea(Serum) Test in Mumbai
Postprandial Blood Sugar Test in Mumbai
Back Pain Profile in Mumbai
ANA test in Mumbai
Serum Creatinine Test in Mumbai
PT/INR Test in Mumbai
Fasting Blood Sugar Test in Mumbai
Extended Anemia Profile III Executive in Mumbai
Kidney Function Test (Renal Profile) in Mumbai
Serum Magnesium Test in Mumbai
Well-woman exam in Mumbai
LDL cholesterol test in Mumbai
Prolactin Test in Mumbai
Malaria Blood Smear in Mumbai
Liver Function Test (+GGT) in Mumbai
TPHA Test in Mumbai
Hepatitis B Surface Antigen (HBsAg) Test in Mumbai
Antenatal Profile 2 in Mumbai
TSH Test in Mumbai
Cardiac Catheterization in Mumbai
Cardiolipin Antibody (IgM) in Mumbai
Master Health Checkup in Mumbai
Calcium Profile in Mumbai
Coagulation Profile in Mumbai
Uric Acid Test in Mumbai
Vitamin D (25 - Hydroxy Vitamin D, Serum) in Mumbai
Globulin Test in Mumbai
Fever Profile Test in Mumbai
Connective Tissue Disease Profile in Mumbai
Calcium Blood Test in Mumbai
IHC in Mumbai
Estriol Unconjugated (E3) Test in Mumbai
Blood Typing in Mumbai
Vitamin B12 Test in Mumbai
Serum Cortisol in Mumbai
Double Marker Test in Mumbai
Pap Smear, Conventional in Mumbai
Protein S Activity in Mumbai
Non-Invasive Prenatal Testing (NIPT) in Mumbai
whole exome sequencing in Mumbai
Newborn Screening (NBS) in Mumbai
Renal Function Test (RFT) in Mumbai