U.S. doctors online nowAsk doctors free
NM
A 53-year-old female asked:

1cm cancer found after total thyroidectomy last may. new pet shows no cancer but-tsh was .02 w/ 100mcg levothyroxine during test. results accurate?

1 doctor answer • 2 doctors weighed in
Dr. Stuart Seigel
Dr. Stuart Seigelanswered
Endocrinology 15 years experience
Yes: A PET scan works regardless of your tsh. The TSH should be elevated if you were to get a radioactive iodine scan. A PET scan does not require that.
Created for people with ongoing healthcare needs but benefits everyone.
Learn how we can help
3.1k viewsReviewed >2 years ago
Thank
Dr. Frank Kuitems
Dr. Frank Kuitems agrees1 doctor agrees
1 comment
Dr. Stuart Seigel
Dr. Stuart Seigel commented
Endocrinology 15 years experience
Provided original answer
Keep in mind however that an elevated tsh at the time of a pet scan may be slightly more accurate. It is just not generally required for the scan. Also a PET scan is not 100% sensitive for detecting very small residual tumors. You should always listen to your prescribing endocrinologist about this as there may be a reason why he feels the PET was not as accurate.
Mar 5, 2015

Related questions

A female asked:
I was prescribed 125 mg levothyroxine by a ER dr. With a Tsh Level of 0.40 does that seem too high? (Total thyroidectomy w/parathyroid removal 11mos)
2 doctor answers • 6 doctors weighed in
A 22-year-old female asked:
On levothyroxine following total thyroidectomy. Will a tsh level of 2.5 prevent me from conceiving?
1 doctor answer • 2 doctors weighed in
A 34-year-old female asked:
On levothyroxine 100 for total thyroidectomy my T3 (liothyronine) is low and my ft4 and TSH are normal? I read this could mean I have an illness is this true?
1 doctor answer • 1 doctor weighed in
A 34-year-old female asked:
What is the significance of a low T3 (liothyronine) uptake with normal TSH and ft4 7 weeks post total thyroidectomy and on levothyroxine for 7 wks?
2 doctor answers • 4 doctors weighed in
A female asked:
Total thyroidectomy 4 mo ago. High TSH & t4, low t3 (liothyronine). Feeling very hypo. Increases in levothyroxine not helping symptoms. Sliding downhill fast! Help!
1 doctor answer • 1 doctor weighed in
Last updated Mar 15, 2015

Found in:

Cancer›Thyroidectomy›Thyroxine

People also asked

Im taking 150mg of levothyroxine after total thyroidectomy & RAI a month ago due to papillary thyroid cancer.My TSH level is 0.091uIU/mL.Is it normal?
2 doctor answers • 3 doctors weighed in
What does it mean when my TSH is .007? Had complete thyroidectomy due to metastatic papillary thyroid cancer and take levothyroxine 125 mcg daily.
2 doctor answers • 3 doctors weighed in
Total thyroidectomy in april for papillary cancer. Current Synthroid (thyroxine) dose is 100mcg. Tsh is 0.12. Doctor ordered FSH day 3, will i ovulate?
1 doctor answer • 2 doctors weighed in
Following total thyroidectomy for thyroid cancer, I am on 150mcg of thyroxine, to suppress my tsh. (0.03) could this be why i can't get pregnant?
2 doctor answers • 7 doctors weighed in
40yr Female had Thyroid Cancer 2017 had thyroidectomy.last consultant review Jan 2020 normal blood result.Recent blood test Thyroglobulin Ab 90.02 IU/ml Range 0-4.11. Free T4 1.01 ng/dl Range 0.70-1.48 TSH 2.38 Range 0.35-4.94 sign of cancer return?
1 doctor answer • 1 doctor weighed in

Related topics

Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
Talk to a doctor now
24/7 visits - just $44!
50% off with $15/month membership

Disclaimer:

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 the Free App for Members

Get the Free App for Doctors

HIPAASecure
SOC 2 Type 2Certified
TermsPrivacyCookiesDMCA
Copyright 2023 HealthTap, Inc.