{"product_id":"understanding-thyroid-tests","title":"Understanding Thyroid Tests — TSH, T3 \u0026 T4","description":"\u003cdiv style=\"font-family:'Inter',-apple-system,sans-serif; color:#21302C; max-width:680px;\"\u003e\n  \u003cp style=\"font-size:17px; font-weight:600; color:#2C5A53; line-height:1.5; margin:0 0 10px 0;\"\u003eTSH, free T4, free T3, antibodies — thyroid test results can look like alphabet soup. This guide explains what each thyroid test measures and how to read your results, calmly and clearly.\u003c\/p\u003e\n  \u003cp style=\"font-size:14px; font-weight:400; color:#566B66; line-height:1.7; margin:0 0 28px 0;\"\u003eWhat each thyroid test measures, what the numbers generally mean, why results are read together, and the questions worth asking your doctor.\u003c\/p\u003e\n  \u003cdiv style=\"background:#E8F2EF; border-radius:12px; padding:24px 28px; margin-bottom:24px;\"\u003e\n    \u003cp style=\"font-size:10px; font-weight:600; color:#44827A; letter-spacing:0.08em; text-transform:uppercase; margin:0 0 16px 0;\"\u003eWhat's inside\u003c\/p\u003e\n    \u003cul style=\"margin:0; padding:0; list-style:none;\"\u003e\n\u003cli style=\"font-size:13.5px; color:#21302C; line-height:1.55; padding:8px 0; border-bottom:1px solid rgba(68,130,122,0.24); display:flex; align-items:flex-start; gap:10px;\"\u003e\n\u003cspan style=\"color:#44827A; font-weight:700; flex-shrink:0;\"\u003e→\u003c\/span\u003e\u003cspan\u003e\u003cstrong style=\"color:#2C5A53;\"\u003eThe main thyroid tests\u003c\/strong\u003e — TSH, T4 \u0026amp; T3\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-size:13.5px; color:#21302C; line-height:1.55; padding:8px 0; border-bottom:1px solid rgba(68,130,122,0.24); display:flex; align-items:flex-start; gap:10px;\"\u003e\n\u003cspan style=\"color:#44827A; font-weight:700; flex-shrink:0;\"\u003e→\u003c\/span\u003e\u003cspan\u003e\u003cstrong style=\"color:#2C5A53;\"\u003eWhat TSH means\u003c\/strong\u003e — the master signal\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-size:13.5px; color:#21302C; line-height:1.55; padding:8px 0; border-bottom:1px solid rgba(68,130,122,0.24); display:flex; align-items:flex-start; gap:10px;\"\u003e\n\u003cspan style=\"color:#44827A; font-weight:700; flex-shrink:0;\"\u003e→\u003c\/span\u003e\u003cspan\u003e\u003cstrong style=\"color:#2C5A53;\"\u003eFree T4 \u0026amp; free T3\u003c\/strong\u003e — the active picture\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-size:13.5px; color:#21302C; line-height:1.55; padding:8px 0; border-bottom:1px solid rgba(68,130,122,0.24); display:flex; align-items:flex-start; gap:10px;\"\u003e\n\u003cspan style=\"color:#44827A; font-weight:700; flex-shrink:0;\"\u003e→\u003c\/span\u003e\u003cspan\u003e\u003cstrong style=\"color:#2C5A53;\"\u003eThyroid antibodies\u003c\/strong\u003e — the autoimmune clue\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-size:13.5px; color:#21302C; line-height:1.55; padding:8px 0; border-bottom:1px solid rgba(68,130,122,0.24); display:flex; align-items:flex-start; gap:10px;\"\u003e\n\u003cspan style=\"color:#44827A; font-weight:700; flex-shrink:0;\"\u003e→\u003c\/span\u003e\u003cspan\u003e\u003cstrong style=\"color:#2C5A53;\"\u003eReading results together\u003c\/strong\u003e — the full picture\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-size:13.5px; color:#21302C; line-height:1.55; padding:8px 0;  display:flex; align-items:flex-start; gap:10px;\"\u003e\n\u003cspan style=\"color:#44827A; font-weight:700; flex-shrink:0;\"\u003e→\u003c\/span\u003e\u003cspan\u003e\u003cstrong style=\"color:#2C5A53;\"\u003eQuestions for your doctor\u003c\/strong\u003e — getting clarity\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display:flex; align-items:center; gap:18px; background:#FFFFFF; border:1px solid #DCE9E5; border-radius:8px; padding:13px 20px; margin-bottom:24px; flex-wrap:wrap;\"\u003e\n    \u003cspan style=\"font-size:11px; color:#566B66;\"\u003e📄  Downloadable PDF\u003c\/span\u003e\u003cdiv style=\"width:1px; height:14px; background:#DCE9E5;\"\u003e\u003c\/div\u003e\n    \u003cspan style=\"font-size:11px; color:#566B66;\"\u003eInstant download\u003c\/span\u003e\u003cdiv style=\"width:1px; height:14px; background:#DCE9E5;\"\u003e\u003c\/div\u003e\n    \u003cspan style=\"font-size:11px; color:#566B66;\"\u003ePrint-friendly\u003c\/span\u003e\u003cdiv style=\"width:1px; height:14px; background:#DCE9E5;\"\u003e\u003c\/div\u003e\n    \u003cspan style=\"font-size:11px; color:#566B66;\"\u003eCarefully researched \u0026amp; edited\u003c\/span\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"border-left:3px solid #C8A26A; padding:2px 0 2px 16px;\"\u003e\n    \u003cp style=\"font-size:10px; font-weight:600; color:#9A7B3E; letter-spacing:0.08em; text-transform:uppercase; margin:0 0 6px 0;\"\u003eFor educational purposes only\u003c\/p\u003e\n    \u003cp style=\"font-size:12px; color:#566B66; line-height:1.65; margin:0;\"\u003eThis guide is educational information about thyroid health — it is not medical advice, diagnosis, or treatment, and it is not a substitute for care from a qualified doctor or endocrinologist. It does not diagnose, treat, cure, or prevent any condition. Thyroid conditions are diagnosed with blood tests and managed by your doctor; do not start, stop, or change any thyroid medication or dose without medical advice. See your doctor about persistent symptoms such as fatigue, unexplained weight change, or neck swelling, and have any lump or swelling in your neck checked. Seek urgent care for a very rapid or irregular heartbeat, high fever with agitation or confusion, or severe drowsiness; in a medical emergency, call \u003cstrong\u003e911\u003c\/strong\u003e.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"SanLuma","offers":[{"title":"Default Title","offer_id":54086046744913,"sku":"SL-C14-P07","price":27.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/sanluma.com\/products\/understanding-thyroid-tests","provider":"SanLuma.com","version":"1.0","type":"link"}