Can eating food, taking my blood pressure medication (Met-XL), or taking my daily blood thinner (Acitrom) before a blood test affect my thyroid test results, particularly my TSH level?
You can rest assured that neither your blood pressure medication, Met-XL (metoprolol), nor your blood thinner, Acitrom (acenocoumarol), will affect your thyroid test or TSH levels. You can safely take them as prescribed. Regarding food, eating a meal right before your blood draw can sometimes slightly lower your TSH reading. For the most accurate and consistent results, it is generally best to have your thyroid blood test done in the morning while fasting (before eating). Please consult your doctor for specific instructions.
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Can eating food, taking my blood pressure medication (Met-XL), or taking my daily blood thinner (Acitrom) before a blood test affect my thyroid test results, particularly my TSH level?