A member asked:

Low tsh high free t4? what is the cause?

A doctor has provided 1 answer

Dr. Vered Lewy-Weiss answered

Hyperthyroidism: High ft4 and low TSH are a combination usually indicating an over active thyroid. It doesn't explain the cause which will require further testing to figure out.

Dr Kwok agreed

Answered 6/28/2014

5.7k views

Thank

More of what we treat

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.

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

A member asked:

Low tsh high free t4? what is the cause?

A doctor has provided 1 answer

Dr. Vered Lewy-Weiss answered

Dr Kwok agreed

Related Questions

A member asked:

Hello, I just received labs results for TSH at 0.0236 LOW and TSH Rfx on abnormal to Free T4 at 1.78 HIGH should I be concerned I am dx Hypo?

A member asked:

I have lived in the us my entire life. My TSH is low and T4 is high. Could lack of iodine be the cause? I am also symptomatic.

A member asked:

Pheochromocytoma could it be detremined by the TSH and the free T4 ? And if it can should they be low or high? Tsh is 0.6 and the free T4 is 3.2

A member asked:

3/15 daughters TSH 1.55, thyroglobulin ab 2.3(0-0.9 I u/ml) *high, Tpo 9 (0-26), free T4 .98 *low; On 8/15 TSH 2.89 no other tests. HASHIS? Hypo?

A member asked:

Mildly elevated CPK and sed low iron abnml TSH but free T4 normal what does all this mean?

Sponsored Content

People also searched for:

Normal range TSH and free T3 but low T4?? Just had my thyroid labs done - TSH - 1.88, free T3 - 3.3 and free T4 is .87. What would cause this? I dont sleep great with my 2yo waking up every night but why is T4 low? Is t3 high?Is this a bad balance?

If my TSH is low and T4 high, would thus cause difficulty thinking?

Normal TSH, high free T4 mild elevation , what might be the cause ?

My free T4 is 3, TSH >100. Why is ft4 low and TSH high? Is it dangerous for ft4 to be so low?

My TSH was 3.18 but my free T4 was a 1.8 which was high. Will the high free T4 cause any problems?

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

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?

3/15 daughters TSH 1.55, thyroglobulin ab 2.3(0-0.9 I u/ml) high, Tpo 9 (0-26), free T4 .98 low; On 8/15 TSH 2.89 no other tests. HASHIS? Hypo?