Okwangoku, indlela ye-PCR (i-polymerase chain reaction) yenye yezona ndlela ezichanekileyo nezona zichanekileyo zokuchonga isifo kumzimba womntu. Xa kuthelekiswa nolunye uhlalutyo, alukho umda wecala, ovumela ukufumana i-DNA yegosa elichaphazelayo kunye nobume balo.
I-PCR ngumgaqo wendlela
Ingundoqo yendlela yokuqinisekisa nokuphindaphinda ngokuphindaphindiweyo inxalenye ye-DNA ye-pathogen kwizinto eziphilayo ezifunyenweyo ekufundeni. Ukuphumelela, ukuxilongwa kweemleksi ngeendlela ze-PCR, unokukwazi ukululawula nayiphi na i-DNA kunye ne-RNA ye-microorganms. Ekubeni ngamnye wabo unomtshini wezofuzo ezahlukileyo, okokuba, xa iqhekeza elifanayo lifunyenwe kwisampula ye-biological, liqala inkqubo yokudala inani elikhulu leekopi. Kule nkalo, inkcazo yendlela iqinisekisa umphumo ochanekileyo, nangona kuphela isahluko se-DNA sosulelo sifumaneka kwisampuli.
Ukongezelela, ukuxilongwa kweemleksi usebenzisa indlela ye-PCR kunye nokuqulunqwa kwe-decoding kubandakanya ukufunyanwa kwe-agent echaphazelayo nakwixesha lokuxubusha, xa iimpawu zeklinikhi zesifo zingekho.
Imeko ebalulekileyo kakhulu yokuqhuba i-PCR kukulungiswa kwangaphambili kunye neempendulo ezifanelekileyo zezinto eziphathekayo.
Indlela ye-PCR - ithathwa njani?
Enye yeenzuzo ezibalulekileyo zeendlela kukuba into ehluke ngokupheleleyo yezinto eziphilayo isifanele isifundo. Ingaba ngumkhuhlane we-vaginal , i-smears esuka emlonyeni wesibeleko okanye urethra, umchamo okanye igazi. Yonke into incike kwi-pathogen kunye nokuhlala kwayo.
Ngokuqhelekileyo, ukufumanisa izifo zesifo somzimba ngokusebenzisa indlela ye-PCR, izithintelo zomzimba zithathwa ukuze zibone i-virus yesifo se-hepatitis C okanye i-HIV ithathwa nge-sampuli yegazi.
Kwimeko nayiphi na into, oogqirha batusa ngaphambi kokunikezela ngokuhlalutya:
- Kwiintsuku ezi-1-3 ngaphambi komhla wokulindela ukuqokelela izinto zokuphepha ukulala ngesondo;
- Ngaphambi kokuba unikezele, akukho nto ingomso;
- ngokuhlwa, ungahlambululi isepha ye-antibacterial , kodwa kusasa nje ngamanzi, ungabonisi;
- Iiyure ezingama-2-3 phambi kokuvavanya, ungavumi;
- Kungcono ukuqhuba uvavanyo emva kokuphela kokuya esikhathini.
Kucacile ukuba i-PCR yindlela yokwenza uphando kunye nobuchwepheshe obuphakamileyo, kulula ukuyisebenzisa, kwaye inakho izibonakaliso eziphezulu. Ukongeza kwiyeza ezisebenzayo, ukusetyenziswa kwe-polymerase chain isetyenziselwa injongo zenzululwazi.