Endocrinology Book

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T3 Resin Uptake

Aka: T3 Resin Uptake, T3 Binding Ratio, T3RU
  1. See Also
    1. Thyroid Function Test
    2. Thyroid Function Summary
    3. Triiodothyronine ( Free T3)
    4. Thyroxine (Free T4)
    5. Thyroid Stimulating Hormone (TSH)
    6. Free Thyroxine Index (Free T4 Index)
    7. Thyroxine Binding Globulin (TBG)
    8. Thyroid Releasing Hormone (TRH)
    9. Antithyroid Antibody
    10. Thyroxine Replacement
    11. Hypothyroidism
    12. Hyperthyroidism
    13. Hypothyroidism in Pregnancy
    14. Thyroid Dysfunction in Pregnancy
  2. Indications
    1. Used to calculate Free Thyroxine Index (FTI)
      1. Interpret in conjunction with Total T4 or Total T3
      2. Corrects for abnormal Thyroid Binding Globulin (TBG)
    2. Free T4 also corrects for Thyroid Binding Globulin
      1. Free T4 is preferred over FTI (and T3RU)
  3. Measurement
    1. Unbound Thyroid Binding Globulin filled with T3
    2. Remaining unbound Triiodothyronine (T3) is measured
  4. Interpretation: Increased T3 Resin Uptake
    1. Hyperthyroidism
    2. Systemic illness
    3. Cirrhosis
    4. Nephrotic Syndrome
    5. X-linked decreased Thyroid Binding Globulin
    6. Cushing's Disease
    7. Acromegaly
    8. Diabetic Ketoacidosis (DKA)
    9. Drugs
      1. Prednisone
      2. Androgen
      3. Salicylates
      4. Anabolic Steroids
      5. Asparaginase
  5. Interpretation: Decreased T3 Resin Uptake
    1. Hypothyroidism
    2. Pregnancy
    3. Hepatitis
    4. Porphyria
    5. X-Linked increased Thyroid Binding Globulin (TBG)
    6. Primary Biliary Cirrhosis
    7. Malnutrition
    8. Drugs
      1. Estrogen
      2. Oral Contraceptives
      3. Perphenazine
      4. Fluorouracil
      5. Clofibrate

T3 uptake measurement (C0202224)

Definition (NCI) The determination of the binding of triiodothyonine to thyroxine binding globulin protein in a sample.
Definition (NCI_CDISC) A measurement of the binding of triiodothyonine to thyroxine binding globulin protein in a biological specimen.
Concepts Laboratory Procedure (T059)
SnomedCT 166340002, 143695002, 250669007, 17130003, 275756004
CPT 84479
English T3RU, Tri-iodothyronine uptake, T3 uptake, T3U, Triiodothyronine Uptake Measurement, triiodothyronine uptake measurement (lab test), triiodothyronine uptake measurement, T3 resin uptake, resin t3 uptake, t3 uptake, t3u, t3 uptake test, t3 resin uptake, Measurement of triiodothyronine uptake, Triiodothyronine uptake (procedure), Triiodothyronine uptake, T3UP, Triiodothyronine Uptake, Tri-iodothyronine resin uptake measurement, T3U measurement, T3 - Triiodothyronine uptake, T3 uptake test, T3 uptake measurement (procedure), T3 uptake test (procedure), T3 uptake measurement
Italian Captazione di triiodotironina, Captazione di T3
Dutch T3-opname, T3 opname, trijoodthyronineopname
German T3-Aufnahme, T3U, Trijodthyronin-Aufnahme
Portuguese Captação de T3, Captação de tri-iodotironina
Spanish Captación de T3, medición de T3U, medición de captación de T3 (procedimiento), medición de captación de T3, medición de la captación de resina de triyodotironina, prueba de captación de T3, prueba de captación de triyodotironina (procedimiento), prueba de captación de triyodotironina, Captación de triyodotironina
Japanese トリヨードチロニン摂取, Ｔ３摂取, Ｔ３摂取Ｕ, ﾄﾘﾖｰﾄﾞﾁﾛﾆﾝｾｯｼｭ, T3ｾｯｼｭU, T3ｾｯｼｭ
French Test d'Hamolsky, Test d'Ham, Fixation de tri-iodothyronine
Czech Vychytávání trijodtyroninu, T3U (vychytávání T3), Vychytávání T3
Hungarian T3U (T3 felvétel), T3 felvétel, Tri-jód-tironin felvétel
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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