HealthCareMagic is now Ask A Doctor - 24x7 | https://www.askadoctor24x7.com

question-icon

What Do These Hba1c Levels Indicate?

default
Posted on Mon, 31 Aug 2015
Question: A1C a few weeks ago was 5.5, but fasting glucose was only 83. Last year's A1C was 5.4. Successfully treated for thyroid cancer last year. How can I have an A1C this high with a fasting glucose that low? I hadn't eaten anything before my bloodwork for more than 12 hours. I'm afraid I'll trend higher each year.
doctor
Answered by Dr. Binu Parameswaran Pillai (4 hours later)
Brief Answer:
in normal range

Detailed Answer:
Good day,
Noted your concern.
The Hba1c test is expressed in a range and anything below 5.7% is normal. 5.7 to 6.4% is pre diabetes range and above 6,6% is diabetes range.

If you do it after 2-3 days it may be 5.3%.

So not to worry. As long as it is with in normal range, there is no need to worry.

I must say that, in thyroid cancer follow up, we use a higher dose of levothyroxine ( SYNTHROID) to keep your TSH supressed. This hiigh dose of levothyroxine can some times push your sugar levels slightly high. But this high dose of levothyroxine is essential for atleast 5 years after your surgery.

Regards
Binu
Note: For more information on hormonal imbalance symptoms or unmanaged diabetes with other comorbid conditions, get back to us & Consult with an Endocrinologist. Click here to book an appointment.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
Answered by
Dr.
Dr. Binu Parameswaran Pillai

Endocrinologist

Practicing since :2003

Answered : 1438 Questions

Ask me a question
premium_optimized

The User accepted the expert's answer

Ask an Endocrinologist
Share on

Get personalised answers from verified doctor in minutes across 80+ specialties

159 Doctors Online

By proceeding, I accept the Terms and Conditions

HCM Blog Instant Access to Doctors
HCM Blog Questions Answered
HCM Blog Satisfaction
backtotop2
What Do These Hba1c Levels Indicate?

Brief Answer: in normal range Detailed Answer: Good day, Noted your concern. The Hba1c test is expressed in a range and anything below 5.7% is normal. 5.7 to 6.4% is pre diabetes range and above 6,6% is diabetes range. If you do it after 2-3 days it may be 5.3%. So not to worry. As long as it is with in normal range, there is no need to worry. I must say that, in thyroid cancer follow up, we use a higher dose of levothyroxine ( SYNTHROID) to keep your TSH supressed. This hiigh dose of levothyroxine can some times push your sugar levels slightly high. But this high dose of levothyroxine is essential for atleast 5 years after your surgery. Regards Binu