Thyroid Function Tests (TFT)include TSH, T3, and T4. But did you know that T3 and T4 exist in two forms—Total (bound free) and Free (unbound, active form)? 💡 Key Point: Free T3/T4 tests are more expensive but are only needed in special conditions where total levels may be misleading, such as: ✅ Patients on OCPs ✅ Pregnancy ✅ Nephrotic Syndrome ✅ Cirrhosis ✅ Malnutrition Understanding when to order Free T3/T4 can save costs and improve diagnosis! 🩺💙 #Thyroid #TFT #TSH #T3 #T4 #FreeT3 #FreeT4 #