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what do low t4 levels mean

A male asked:
Dr. Philip Kern
42 years experience Endocrinology
Graves medications: It can be tricky to adjust the dose of Methimazole in someone with graves disease. Too much Methimazole can make you hypothyroid. The ft4 is more reli ... Read More
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A 57-year-old male asked:
Dr. Prem Gulati
46 years experience Internal Medicine
Hypothyroidism: you may need to increase your medication but ned to see your MD
Dr. Ali Saberi
19 years experience Internal Medicine
Still hypothyroid: Not sure how long u have been on thyroid replacement, but if been on 200mcg daily over 6-8 weeks, likely require increase dose. If u have just had u'r ... Read More
A 29-year-old female asked:
Dr. David Sneid
40 years experience Endocrinology
"almost" low: means normal, so stop worrying about your lab values. Your nodules, on the other hand, need someone to evaluate your clinical parameters and ultrasoun ... Read More
Dr. Thomas Knecht
A Verified Doctor answered
A US doctor answered Learn more
Normal function: Hi. You have normal thyroid function. Free T4 is allowed to be "almost low" - another way to express that is "normal". You have normal thyroid functio ... Read More
A 59-year-old female asked:
Dr. Gurmukh Singh
48 years experience Pathology
See below: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. ... Read More
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A 47-year-old female asked:
Dr. Michael Kleerekoper
A Verified Doctor answered
A US doctor answered Learn more
T3 and T4: A low TSH should not affect your thyroid glands! If you are having a problem please see an Endocrinologist. Should not be necessary.
A female asked:
Dr. Stuart Hickerson
31 years experience Family Medicine
Not alot: Thyroid interaction is not common with Lamictal, however as with all medications for each individual that can be a possibility. As to your low TSH tha ... Read More
A female asked:
Dr. Richard Zimon
58 years experience Internal Medicine
"NON TOXIC: multinodular goiter..is the probable Diagnosis and THYROID REPLACEMENT therapy may be indicated! I would recommend a consultation witha Board Certifi ... Read More
A 24-year-old female asked:
Dr. Gurmukh Singh
48 years experience Pathology
Likely normal: All lab results need to be interpreted in the clinical context and the doctor who ordered the test is usually in the best position to do that. You may ... Read More
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A 25-year-old female asked:
Dr. A. tarig Ahmed
14 years experience Internal Medicine
Thyroid function: When TSH is normal and T4 is low this is called subclinical hypothyroidism. It is not treated unless if you have symptoms. Also if TSH > 10 some w ... Read More
A 37-year-old female asked:
Dr. David Sneid
40 years experience Endocrinology
Low TSH: Generally indicates an excess in thyroid hormone. That may be chronic w/hyperthyroidism -- or temporary w/thyroid inflammation. See you doctor. If you ... Read More
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