Ukungakwazi ukujikeleza kwegazi kwenzeka xa, phantsi kweemeko zobomi bomntu, i-cardiovascular system ayikwazi, ngenxa nayiphi na isizathu, unikezela umzimba ngomlinganiselo ofanelekileyo we-oksijini. Kwizigaba zokuqala, kunzima ukuyiqonda le ntshoyo, kuba ibonakalisa kuphela xa umzimba uphethwe kakhulu. Ukuba eso sifo singaphathwa, kwixesha elizayo liza kuzivela nakwindawo yokuphumla.
Ukwahlulelwa kwamazwe
Zininzi iintlobo eziphambili zesifo:
1. I- Vascular , ebonakaliswa ngokuncipha kwindleko yegazi efika entliziyweni ixesha elide. Kukho izimbalwa ezinobangela zokungaphumeleli kokujikeleza:
- ukuphulwa kobunzima beemvini;
- ukulahleka kwemali enkulu;
- ukuthintela ukuqhuma komhlaba.
Kwimeko nayiphi na into, uxinzelelo lwegazi lusehla kwinkqubo yejikelezo, okukhokelela ekuphuleni oksijini kunamalungu ngamnye omzimba kunye nomzimba wonke.
2. I- cardiac - ibonakala xa isenzo sesigqirha nesivumelwano saso sitshintsha utshintsho. Izizathu eziphambili zilandelayo:
- ukubonelela ngegazi ngokusuka entliziyweni;
- ukwandisa umthamo wetsholongwane kwinkqubo phambi kwendawo eyonakalisiweyo;
- Umsebenzi ongenamsebenzi we-muscular enye okanye ngaphezulu.
3. Ukungaphumeleli kwimijikelezo ejikelezayo . Ikwahlula kwii-syndromes ezininzi ezininzi:
- ukuphazanyiswa kwesinye seengcingo;
- ukuphelelwa yintliziyo.
Konke oku kukhokelela kumthwalo owongezelelweyo kungekhona kuphela kwisistim esisisiseko, kodwa nakumzimba wonke, ochaphazela ubomi bemihla ngemihla yomntu. Ukuba awuqali unyango ngexesha, le fom ingadluka.
4. Ukungaphumeleli kwimijikelezo yokujikeleza. Iyakwazi ukwahlula kumaqela aphezulu amaninzi:
- Iidanga eli-1 lichazwe yi-tachycardia, i- dyspnea kunye nokhathala okwandisiweyo;
- I-2 degree ineempawu ezifanayo, kuphela zibonakaliswa kwimeko yokuzola; amandla omntu okusebenza ayancitshiswa kakhulu;
- Iidanga ezi-3 libonakaliswe ngokusemandleni ngokupheleleyo.
Ukungazi kakuhle kunye nokungapheliyo kudinga unyango olulinganayo.
Ukungakwazi ukuhamba kwemibhobho ye-cerebral
Ngokwahlukileyo, kuyimfuneko ukukhankanyela ukungakwazi ukujikeleza kwe-cerebral circulation. Kwindlela yokuhlengahlengiswa, ibhekisela ekungeneni kwamathambo. Ngelo xesha, isifo sithathwa njengengozi kakhulu, njengoko ihlala iholele ekukhubazekeni okanye nakubhubha. Ibonakala:
- ukungcola;
- ingxolo ezindlebeni ;
- intloko;
- ukuhlaziywa okubukhali kwememori.