Get your Health question answered in 3 easy steps
A Doctor will be with you shortly
Ask a Doctor Now
184 Doctors are Online

Clarification on microsomal test results - Online Doctor Chats

Date : 21-Feb-2012
User rating for this question
Very Good Posted in: X-ray, Lab tests and Scans
Answered by

General & Family Physician
Practicing since : 2004
Answered : 1777 Questions
User :   I just had a microsomalAB test done. I keep reading that a "negative" result is good but what IS negative? My result was 0.4 but my other thyroid tests were in normal range...?
Doctor :   HI
Doctor :   I am Dr. xxx
User :   hello
User :   what is your specialty?
User :   are you there?
Doctor :   I am a General physician
User :   ok
Doctor :   I am trying to understand if you have any autoimmune problems that lead to the test
Doctor :   What is your age?
User :   I am 48 years old and in menopause...I had a hysterectomy in 2005 but kept ovaries...hormones have bottomed out...dr. checking thyroid
Doctor :   Ok
Doctor :   This is a test to check for Autoimmune thyroiditis
Doctor :   called Hashimoto's
Doctor :   I think your doctor would have mentioned that
Doctor :   Usually starts in childhood, very rare at this age
Doctor :   ofcourse common in women
Doctor :   But usually people who tend to have other autoimmune diseases are screened
Doctor :   liek DiabetesType 1
Doctor :   Coeliac disease
User :   yes....because I am having very bad hot flashes and sensitiivty to heat....I am hot allof the time on top of the flashes! plus can't sleep at night
Doctor :   or any one in the family
Doctor :   Perimenopausal age, these are commonly seen
Doctor :   in women
User :   no one else has thyroid issue...she did mention Hashimotos
User :   but wouldn't I have other symptoms?
Doctor :   Ok since I believe you have normal TSH and T4, T3 levels
User :   yes, I got those results back
Doctor :   I do not think you should be worried about Hypothyroidism resulting from Hashimotos
User :   even though my reading was 0.4 on the microsomal test, that is not a negative test, right?
User :   because it didn't say "negative" and there was a reading or number, I guess?
Doctor :   Ok
Doctor :   The numbers vary based on the local lab
Doctor :   What is your doctor's opinion on this
Doctor :   Which place are you in ?
User :   I am in yyy, went to the zzz Clinic...I viewed these results on MyChart, an online service from the Clinic to see your results, so haven;t talked to Dr. yet.
Doctor :   Ok, I am not sure about the lab values in your area
Doctor :   Actually in this part, they say negative and also quote number
Doctor :   Sometimes the numbers are not significant
User :   aren't the ranges universal in most basic lab tests?
Doctor :   as this part the Hashimotos
Doctor :   is not prevalant
Doctor :   and Iodine deficiency is more common than Hashimotos
Doctor :   So we treat our patients in line with that
Doctor :   rather than Hashimoto's
Doctor :   No
Doctor :   The range is not universal
User :   that's interesting...would I have goiter if I had an iodine insufficiency?
Doctor :   Yes
Doctor :   But importantly you have recognise that your thyroid results are normal
User :   I don't have that, she checked
Doctor :   so I would safely rule out thyroid problem
User :   yes, the rest were within normal limits
User :   I think eveything would be abnormal if I had a thyroid issue?
Doctor :   Ofcourse if the treating doctor suspects he may go in for further testing
Doctor :   Say a repeat thyroid profile after sometime
User :   that may be the course....perhaps an endocrinologist would be the way to go??
Doctor :   It is routine to evaluate thyroid profile in perimenopausal women like you
User :   I understand that....makes sense!
Doctor :   If you want you can take an online opinion from Endocrinologist here
User :   Thank you, you have shed some light on this for I can get some rest!
Doctor :   putting all your concern
Doctor :   WWW.WWWW.WW [push]
Question is related to
Diseases and Conditions
Medical Topics
© Ebix, Inc. All Rights Reserved.
All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice. You should always speak with your doctor before you follow anything that you read on this website. Any health question asked on this site will be visible to the people who browse this site. Hence, the user assumes the responsibility not to divulge any personally identifiable information in the question. Use of this site is subject to our Terms & Conditions
Already Rated.
Your rating:

Ask a Doctor