Uviwo T3: luyintoni kwaye uziqonda njani iziphumo

Umxholo

• Yenzelwe ntoni
• Usiqonda njani iziphumo
• Yintoni i-reverse T3?

Uvavanyo lwe-T3 lucelwa ngugqirha emva kokutshintsha kwe-TSH okanye i-hormone ye-T4 iziphumo okanye xa umntu eneempawu kunye neempawu ze-hyperthyroidism, ezinje ngokuba novalo, ukwehla kobunzima, ukuba nochuku kunye nesicaphucaphu, umzekelo.

I-hormone ye-TSH inoxanduva lokukhuthaza imveliso ye-T4, ubukhulu becala, edityaniswa nesibindi ukuze inike eyona fomu yayo isebenzayo, i-T3. Nangona uninzi lwe-T3 luvela kwi-T4, idlala lengqula likwavelisa le hormone, kodwa ngexabiso elincinci.

Akukho mfuneko yokuzila ukutya, nangona kunjalo, amanye amayeza anokuphazamisa iziphumo zovavanyo, ezinje ngamachiza e-thyroid kunye nezinto zokucwangcisa, umzekelo. Ke ngoko, kubalulekile ukunxibelelana nogqirha ukuze kunikwe isikhokelo malunga nokumiswa okukhuselekileyo kwesiyobisi ukwenza uvavanyo.

Yenzelwe ntoni

Uvavanyo lwe-T3 luyacelwa xa iziphumo zovavanyo lwe-TSH kunye ne-T4 zitshintshiwe okanye xa umntu eneempawu zehyperthyroidism. Ngenxa yokuba yincindi yedlala edla ngokufumaneka kumanqanaba egazi asezantsi, idosi ye-T3 kuphela ayisetyenziswanga ukuvavanya ukusebenza kwe-thyroid, kwaye ihlala icelwa xa kukho ubungqina bokuba isifo se-thyroid sikhona okanye sidibene ne-TSH kunye ne-T4. Yazi ezinye iimvavanyo ezivavanya idlala lengqula.

Ukongeza ekubeni luncedo ekuncedeni ukuxilongwa kwe-hyperthyroidism, uvavanyo lwe-T3 lunokuyalelwa ukuba luncede ekuchongeni unobangela we-hyperthyroidism, njengesifo se-Graves, umzekelo, kwaye ihlala iyalelwa kunye nomlinganiso wee-autoantibodies ze-thyroid.

Uvavanyo lwenziwa kwisampulu yegazi ethunyelwe elebhu, apho kugqitywe khona uxinzelelo lwe-T3 yasimahla kunye ne-T3 yasimahla, ehambelana kuphela ne-0.3% yetotali iyonke, ngenxa yoko ifunyenwe ngakumbi kwifomati yayo edityanisiweyo. Ixabiso lesalathiso se Iyonke i-T3 é phakathi kwe-80 kunye ne-180 ng / dL kunye I-T3 yasimahla iphakathi kwe-2.5 - 4.0 ng / dL, zinokwahluka ngokwelabhoratri.

Usiqonda njani iziphumo

Amaxabiso e-T3 ayahluka ngokwempilo yomntu, kwaye angonyuswa, anciphiswe okanye aqhelekileyo:

• T3 phezulu: Ihlala iqinisekisa ukuxilongwa kwe-hyperthyroidism, ebonisa isifo se-Graves, ikakhulu;
• T3 isezantsi: Ingabonisa iHashimoto's thyroiditis, neonatal hypothyroidism okanye i-hypothyroidism yesibini, efuna iimvavanyo ezongezelelweyo ukuqinisekisa isifo.

Iziphumo zovavanyo lwe-T3, kunye ne-T4 kunye ne-TSH, zibonisa kuphela ukuba kukho utshintsho oluthile kwimveliso yehomoni yi-thyroid, kwaye akunakwenzeka ukuba yintoni unobangela wokungasebenzi. Ke ngoko, ugqirha unokucela uvavanyo oluthe kratya ngakumbi ekuchongeni unobangela wehypo okanye hyperthyroidism, enjengokubalwa kwegazi, uvavanyo lwe-immunological kunye ne-imaging.

Yintoni i-reverse T3?

Ukubuyela umva kwe-T3 yindlela engasebenziyo yehomoni evela kuguqulo lwe-T4. Umthamo we-reverse T3 awuceliwe kancinci, uboniswa kuphela kwizigulana ezinezifo ezimandundu ezibandakanya idlala lengqula, ngamanqanaba ancitshisiweyo e-T3 kunye ne-T4, kodwa amanqanaba aphezulu e-reverse T3 afunyenwe. Ukongeza, ukubuyela umva i-T3 kunokuphakanyiswa kwiimeko zoxinzelelo olungapheliyo, ukusulelwa yintsholongwane kaGawulayo kunye nokusilela kwezintso.

Ixabiso lesalathiso le-T3 yokubuyisela umva Iintsana ziphakathi kwama-600 nama-2500 ng / mL kwaye ukusuka kumhla we-7 wobomi, phakathi kwe-90 kunye ne-350 ng / ml, ezinokwahluka phakathi kweelebhu.