HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Normal tsh, high t4 and high t3 (liothyronine). what is it?

A doctor has provided 1 answer
Dr. Robert Lang answered

Specializes in Internal Medicine - Endocrinology

A high protein: T4 and T3 (liothyronine) are bound to a protein in the blood and when it is high, the T4 and T3 (liothyronine) can be elevated with a normal tsh. Estrogen, birth control and pregnancy are the most common causes of an elevation of this protein.

Answered 8/31/2020

5.7k views

Thank

Related Questions

A member asked:

Normal TSH and T4 but high T3 (liothyronine) what does it indicates?

A doctor has provided 1 answer

A member asked:

What does a low normal TSH (1.4) and high T4 (11.1) mean? T3 (liothyronine) is normal .

2 doctors weighed in across 2 answers

A member asked:

High TSH, normal T4 and High T3 (liothyronine). What does this mean?

A doctor has provided 1 answer

A member asked:

What does it mean when free T3 (liothyronine) is abnormally high but free T4 and TSH are in the normal range?

2 doctors weighed in across 2 answers

A member asked:

I have high thyroglobulin 137, high tpo 519, TSH .93, normal T3 (liothyronine) and t4, tgab is >20 anything >20 and up is abnormal. What does this mean?

A doctor has provided 1 answer

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

Is 1.98 TSH T4 high or is in in normal range? I think I have a thyroid problem. T3 (liothyronine) is 2.98
Tsh 0.01, T3 (liothyronine) free 4.3, t4. Free 1.8 ? Tsh low T3 (liothyronine) very slightly elevated T4 high normal? Pcp says nothing is wrong?
Tsh 0.01, T3 (liothyronine) free 4.3, t4. Free 1.8 ? Tsh low T3 (liothyronine) very slightly elevated T4 high normal? Pcp doesn't think much, repeat in 6 weeks?
Why would my TSH be on the high side of normal, T4 extremely elevated, and T3 (liothyronine) elevated?
I guess my T3 (liothyronine) and T4 levels are normal but TSH is high.My weights increasins n i also have polycistric ovaties....What should I do...?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.