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Low t4 hormone
Dear sir,I have done my thyroid test and it shows TSH normal,T3 normal but t4(3.5) is low .I am having tachycardia.My question to you is that is tachycardia caused by low t4 levels or something else.Can it cause high BP.
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No you have TSH normal , this is principal, low T4 is not give tachycardia but bradycardia. Still Free T3 and Free T4 more reliable. But you not given your past history wether purpose of thoirid function was on treatment or just done?
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Isolated low T4 is uncommon and can be due to lab error. Get a repeat testing in another lab with free t4 and free t3.
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Do Free T4
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Low total T4 can be due to binding protein deficiency or just lab error, Get free T4 done, low T4 causes bradycardia not tachycardia , hypothyroidism can cause hypertension ( diastolic)
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.