Factors That Can Affect Your TSH Blood Test Results: Ensuring Accurate Thyroid Assessment
The TSH (thyroid-stimulating hormone) blood test is a cornerstone in assessing thyroid function, helping diagnose and monitor thyroid disorders like hyperthyroidism and hypothyroidism. However, several factors can influence your TSH blood test results, potentially leading to inaccurate interpretations. Understanding these factors is crucial for ensuring a reliable assessment of your thyroid health. 1. Medications : Thyroid Hormone Medications : If you are taking thyroid hormone replacement therapy (for hypothyroidism), your TSH levels will be suppressed , and the test results may not accurately reflect your underlying thyroid function. It's essential to inform your doctor about any medications you are taking, including thyroid hormone medications. Other Medications : Certain medications, including lithium, amiodarone, and interferon-alpha, can affect TSH levels and may require adjustment or discontinuation before the test. 2. Pregnancy : Hormonal Changes : During pregnancy,