Hello Doctor, My mother has a history of low blood sodium levels, which has previously caused sudden unconsciousness, and she also has a history of thyroid issues. Today, her blood test shows a TSH (thyroid stimulating hormone) level of 4.59 mclU/mg. An earlier test report showed TSH as 9.9, but the unit was microIU/mL. Which unit is correct, and how should we interpret these results?

Answered by 1 Apollo Doctors

Dr Vasanthasree Nair

General Practitioner

MBBS
15+ Yrs

Consult Now

Both units are standard (mIU/mL). Current value is within normal range, continue monitoring if symptomatic.

Dr. Vasanthasree Suggests...

Take a Sodium Test Test or Take a Thyroid Profile (T3 T4 TSH) Test Test

Book Sodium Test Test Book Thyroid Profile (T3 T4 TSH) Test Test

Answered 11/09/2025

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