Skip to the content
World Health Laboratory Logologo darklogo light
  • WHL Portal
    • About World Health Laboratories
    • My account
    • Practitioner Portal
    • Contact World Health Laboratories
    • FAQ Page
    • Careers
  • Tests
    • Browse Tests by Category
    • Browse Featured Categories
    • Browse All Tests
  • Wellness Guide
  • Find Your Test
  • Make Appointment
  • NL
Cart (13)
  • test tube
    Toxoplasma IgG

    € 20,00

    Quantity: 1

  • test tube
    Hepatitis C PCR (Qualitative)

    € 199,00

    Quantity: 1

  • test tube
    Vitamin B5 (Pantothenic Acid)

    € 35,00

    Quantity: 1

  • stool test tube
    Secretory IgA

    € 35,00

    Quantity: 1

  • stool test tube
    Stool Inflammation Test - Calprotectin

    € 109,00

    Quantity: 1

  • stool test tube
    Zonulin – Intestinal Permeability

    € 69,00

    Quantity: 1

  • test tube
    Hepatitis B PCR (Quantitative)

    € 249,00

    Quantity: 1

  • stool test tube
    Stool Virulence Factors

    € 50,00

    Quantity: 1

  • test tube
    Magnesium (Intracellular)

    € 30,00

    Quantity: 1

  • test tube
    HbA1c (Glycated Hemoglobin)

    € 19,95

    Quantity: 1

  • test tube
    Hepatitis C Genotype

    € 389,00

    Quantity: 1

  • test tube
    Respiratory Syncytial Virus IgG

    € 25,00

    Quantity: 1

  • test tube
    Free Cortisol (+ Total Cortisol/Transcortin)

    € 115,00

    Quantity: 1

Total:€ 1.344,95

View Cart And Checkout
Search
World Health Laboratory Logo
  • WHL Portal
    • About World Health Laboratories
    • My account
    • Practitioner Portal
    • Contact World Health Laboratories
    • FAQ
    • Careers
  • Tests
    • Browse Tests by Category
    • Browse Featured Categories
    • Browse All Tests
  • Wellness Guide
  • Find Your Test
  • Make Appointment
  • Cart
  • NL
HomeAll Laboratory Tests & PanelsEndocrinologyFree T4
“Free Cortisol (+ Total Cortisol/Transcortin)” has been added to your cart. View cart
test tube

Free T4

€ 20,00

Measures biologically available T4. Requires fasting blood sample.

- +
SKU: FT4-E Category:Endocrinology
  • Beschrijving
  • Information

Beschrijving

Free T4 measures the unbound, biologically active form of T4, essential for understanding thyroid function and metabolic health. This test helps assess thyroid activity and diagnose related disorders.

  • Sample requirement: Requires fasting blood

Suitable for postal submission.

Additional information

Weight 0,5 kg
Dimensions 25 × 16 × 2,5 cm
Sample Type

Blood

Related products

  • test tube
    Endocrinology

    Antidiuretic Hormone (ADH)

    € 45,00 Add to cart
  • test tube
    Endocrinology

    Acetylcholine Receptor Antibodies

    € 50,00 Add to cart
  • test tube
    Endocrinology

    Insulin

    € 20,00 Add to cart
  • test tube
    Endocrinology

    Cortisol (Any Hour)

    € 30,00 Add to cart

Subscribe for updates

    Address

    • WHL | World Health Laboratory
    • Regulierenring 9, 3981 LA Bunnik, The Netherlands
    • Phone: +31 30 2871492
    • Email: info@worldhealthlaboratories.com
    • CC: 58481087

    Opening Hours

    • Mon - Fri:      Appointment Only
    • Sat - Sun:      Closed
    • Make an Appointment!
    • Contact
    • Careers
    • FAQ
    • Privacy Policy
    • Terms and Conditions

    © 2025 WHL, All Rights Reserved

    Back to top Drag
    Manage Consent

    We use cookies to optimize our website and services. You can accept or customize your preferences. Without consent, some features may not function properly.

    Functional Always active
    The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
    Preferences
    The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
    Statistics
    The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
    Marketing
    The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
    • Manage options
    • Manage services
    • Manage {vendor_count} vendors
    • Read more about these purposes
    View preferences
    • {title}
    • {title}
    • {title}