What Is a TSH Reflex Test and What Results Mean? A TSH reflex test automatically adds a free T4 check when TSH is abnormal Learn what different result combinations say about your thyroid health
TSH with Reflex to Free T4 | Test Detail | Quest Diagnostics In patients with clinical suspicion of hyperthyroidism or hypothyroidism, testing thyroid stimulating hormone (TSH) is the initial step [1] An abnormal TSH result will reflex to a free thyroxine (T4) test to aid in diagnosis and guide further testing if needed
What Is A TSH Reflex On Abnormal To Free T4 Test? One of the most common tests your doctor will order is a “TSH reflex on abnormal to free T4” test In this article, I’ll help you to understand the test, how it works and what your results might mean
What Does TSH Reflex Mean? | TSH With Free T4 Explained In simple terms, “TSH reflex” means the lab runs a thyroid-stimulating hormone (TSH) test first If that result lands outside the lab’s reference range, the system automatically “reflexes” to a follow-up test, almost always free T4 (free thyroxine)