Uvavanyo lwe-sweat lube luvavanyo lokuzikhethela i- cystic fibrosis (i-CF) ukususela ngo-1959. Iinkqubo ezintsha, ezifana nokuhlolwa kofuzo , ziye zaphuhliswa kodwa kwiimeko ezininzi, ukuhlolwa kwe-sweat kusekho uvavanyo olukhokelela kwi-CF. Ezinye izizathu zokuba uvavanyo lwe-sweat zi:
- Usana luye lwafumana ukuhlolwa kwintsana olutsha olusandul ' uCF
- Umntu weliphi na ubudala unempawu zeCF
Yintoni eyenzeka Ngethuba lovavanyo lokuvumba
Uvavanyo lwe-sweat luvame ukuqhutyelwa kwi-forearm, kodwa lunokwenziwa kwintambo yeintsana nabantwana abanezandla ezincinci.
- Isinyathelo sokuQala - Ukukhupha i-Sweat Sweat: I-technician iza kufaka i-electrode ezimbini ezinezidakamizwa ezikhupha i-pilocarpine elukhumbeni. Umbane omncinci wamandla kagesi uhanjiswa nge-electrodes ukunceda i-pilocarpine ivuselele ukujuluka. Okwangoku akusibuhlungu, kodwa ukuvakalelwa kancinci kungathi kubonakale.
- Isinyathelo Sesibili - Ukuqoqa Umqubu: Emva kwemizuzu engama-10, ochwephesha uyayeka okwangoku kwaye ususa ama-electrodes. Ulusu luyakusulwa lube lumile kwaye iqela lephepha lokucoca elityhidiwe ngeplastiki, ngezinye izihlandlo elibizwa ngokuthi "i-sweat patch" ifakwe kwisayithi ukuqokelela isithukuthezi. Xa inani elaneleyo lokukhupha liqokelelwa, ngokuqhelekileyo malunga nemizuzu engama-30 ukuya kweyesi-45, iphepha elikhuniweyo elikhukhulayo liyakususwa kwaye lithunyelwe kwibhabhatya yokuvavanya.
Uphi uvavanyo olujongeyo olujongeyo
Abantu abane-cystic fibrosis banamaqondo aphezulu eetyuwa, eyaziwa ngokuba yi-sodium chloride, kwi-sweat yabo.
Uvavanyo lwe-sweat lulinganisa ixabiso le-sodium kunye ne-chloride kwi-sweat, kodwa inani le-chloride yinto ebangela umphumo wovavanyo.
I-Chloride Ranges kwiintsana
- ngaphantsi kwe-30 = eziqhelekileyo
- 30 - 59 = umda we-edgeline
- 60 okanye ngaphezulu = okulungileyo kwiCF
I-Chloride Ranges kwi-Children and Adult
- ngaphantsi kwe-40 = evamile
- 40 - 59 = umda we-edgeline
- 60 okanye ngaphezulu = enhle kwiCF kubantwana, kodwa ingaba yinto evamile kubantu abadala. Ukuba umntu omdala unesiphumo esiphathelene ne-60 mmol / ilitha, ukuhlolwa kofuzo kungenziwa ukuze kuqinisekiswe ukuxilongwa.
Uvavanyo oluchanekileyo lwe-Sweat Swe
Uvavanyo lwe-sweat luyi-98% echanileyo, kodwa ezinye izinto zingenza ukuba iziphumo zingalunganga okanye zingabonakali.
- Iimpawu ezingamanga : Ezinye izifo ezinqabileyo ezingabonakali nazo zingavelisa amanqanaba aphezulu e-chloride, kodwa ezo ziphazamiso zinempawu ezahlukileyo kune-cystic fibrosis. Ukuba ukuhlolwa kwe-sweat kuvelisa iziphumo ezintle kumntu onempawu ezingabonakaliyo kwiCF, kufuneka kwenziwe uvavanyo oluthe vetshe ukuqinisekisa ukuxilongwa.
- Amanqaku amanga: Ngamanye amaxesha, umntu one-cystic fibrosis uya kuba nezinga eliqhelekileyo le-chloride kwisithuthuthu sakhe. Ukuba oku kwenzeka, kudla ngokuba mhlawumbi ngenxa yokungafihli okwaneleyo kwanikezelwa kwisampuli, okanye ukujuluka kwahlanjululwa.
Amanqaku amanga ayeninzi amaninzi
- Iintsana ezingaphantsi kweeveki ezi-2 ubudala okanye ubunzima obungaphantsi kweeyure ezili-7 abangenakho ukuvelisa ukujuluka okwaneleyo.
- Abantu abanokukhukhumeza kwamathambo kubangelwa ukugcinwa kwamanzi, okubizwa ngokuba yi-edema, isithukuthezi sayo sinokuhlanjululwa ngamanzi amachiza.
Umthombo
Mishra, A., Greaves, R., noMassie, J. "Ukubaluleka kokuvavanya i-Sweat Testing of the Cystic Fibrosis kwi-Genomic Era". 2005. Iklinikhi ye-Biochem Rev 26 (4): 135-153. 20 uJulayi 2008.