Liyini Izinga Lempumelelo Lokwelapha Ubuthi Be-Sodium Cyanide?

I-Sodium cyanide iyisidakamizwa esinobuthi kakhulu, kanti ubuthi be-Sodium cyanide buyisimo esiphuthumayo esisongela impilo. Izinga lempumelelo yokwelashwa lithintwa yizici eziningi, futhi akukho sibalo esisodwa esiqondile sezinga lempumelelo esisebenza kuzo zonke izimo.

1. Indlela Enobuthi Ye-Sodium Cyanide

I-Sodium cyanide ikhipha ama-ion e-Cyanide (CN⁻) emzimbeni. Lawa ma-ion e-cyanide anobuhlobo obuqinile kakhulu ne-ferric iron (Fe³⁺) ku-cytochrome oxidase kumaseli. Uma esehlanganisiwe, akha i-complex ezinzile, okwenza i-cytochrome oxidase ilahlekelwe ikhono layo lokudlulisa ama-electron. Ngenxa yalokho, uchungechunge lokuthuthwa kwama-electron kumaseli luyaphazamiseka, futhi amaseli awakwazi ukusebenzisa umoya-mpilo ngendlela evamile, okuholela ekuphelelweni yi-asphyxia yangaphakathi kweseli. Izicubu ziphoqeleka ukushintsha kusuka ku-metabolism ye-aerobic ziye ku-metabolism ye-anaerobic, okuhambisana nokwanda kokuqukethwe kwe-lactate kanye ne-phosphate engaphili ezicutshini, kanye nokwehla kokuqukethwe kwe-glycogen kanye ne-ATP. Njengoba uhlelo lwezinzwa oluphakathi luzwela kakhulu ku-hypoxia, lulokuqala ukonakala, ikakhulukazi isikhungo sokuphefumula kanye nesikhungo se-vasomotor.

2. Izinto Ezithinta Izinga Lempumelelo Lokwelashwa

2.1 Ubukhulu Bobuthi

• Ubuthi Obuncane : Ezimweni zobuthi obuncane be-Sodium Cyanide , uma umthamo we-cyanide odliwe noma ophefumulwayo umncane kakhulu, izindlela zomzimba zokubuyisela umzimba zingase zikwazi ukusebenza ngezinga elithile. Isibonelo, iziguli zingase zithole izimpawu ezincane nje njengekhanda elibuhlungu, isiyezi, isicanucanu, kanye nokuphelelwa umoya. Ezimweni ezinjalo, uma zelashwa ngokushesha, izinga lempumelelo lokwelashwa liphezulu kakhulu. Ngokususwa ngesikhathi emthonjeni wobuthi, ukuhogela umoya-mpilo, kanye nokusetshenziswa kwemithi yokwelapha efanele, iziguli eziningi zingalulama ngokuphelele.

• Ubuthi Obunzima : Uma ubuthi bukhulu, iziguli zingase zithuthuke ngokushesha zibe nezimpawu ezifana nokuquleka, ukuxhuzula, kanye nokuma kwenhliziyo nokuphefumula. Ngalesi sikhathi, izitho eziningi emzimbeni zilimele kakhulu. Isibonelo, inhliziyo ingayeka ukushaya kahle, futhi ubuchopho bungahlushwa yi-hypoxia enzima - ukulimala kwe-ischemic. Uma lesi simo siqhubeka isikhathi eside, izinga lomonakalo wezitho zomzimba liyanda, futhi kuba nzima kakhulu ukuguqula isimo, okuholela ekwehleni okukhulu kwesilinganiso sempumelelo yokwelashwa.

2.2 Isikhathi Sobuthi

• Ubuthi Besikhathi Esifushane : Uma isikhathi kusukela ekuveleni kobuthi be -sodium cyanide kuze kube sekuqaleni kokwelashwa sifushane, umonakalo emzimbeni ulinganiselwe. Isibonelo, uma umuntu esindiswa futhi elashwa phakathi nemizuzu embalwa kuya kwengxenye yehora ngemuva kokuphefumula noma ukuphuza i-Sodium cyanide , amathuba okwelashwa ngempumelelo aphezulu kakhulu. Ngoba ngalesi sikhathi, i-cyanide ayikakabi nesikhathi esanele sokubangela umonakalo ongenakulungiseka ezithweni ezibalulekile.

• Ubuthi Besikhathi Eside : Njengoba isikhathi sihamba, i-cyanide iyaqhubeka nokusebenza kumaseli, futhi umonakalo ezithweni ezifana nenhliziyo, ubuchopho, nesibindi uyanqwabelana. Uma isikhathi sobuthi sidlula amahora amaningana futhi isiguli singakatholi ukwelashwa okusebenzayo, izinga lokusinda lizoba liphansi kakhulu. Isibonelo, ngemva kwamahora amaningana obuthi obukhulu be-cyanide, ubuchopho bungase buhlushwe yi-necrosis enkulu ngenxa ye-hypoxia, futhi noma i-cyanide isuswa emzimbeni kamuva, umsebenzi wobuchopho owonakele kunzima ukuwubuyisela.

2.3 Ukufika Kwesikhathi Nokunemba Kwezinyathelo Zosizo Lokuqala

• Usizo Lokuqala Olusheshayo : Izinyathelo zosizo lokuqala ezisheshayo endaweni lapho kutholakale khona ubuthi zidlala indima ebalulekile. Uma sekusolwa ukuthi ubuthi be-sodium cyanide bukhona, isinyathelo sokuqala ukususa isiguli ngokushesha endaweni enobuthi ukuze kuvinjelwe ukuchayeka okwengeziwe. Isibonelo, uma kwenzeka ubuthi bokuphefumula engozini yemboni, ukuhambisa isiguli endaweni enomoya omusha ngokushesha kunganciphisa ukuhogela kwe-cyanide eyengeziwe. Ngesikhathi esifanayo, ukubiza izinsizakalo zezokwelapha eziphuthumayo ngokushesha kubalulekile. Uma ukuphefumula noma ukushaya kwenhliziyo kwesiguli kuyekile, ukuvuselelwa kwenhliziyo (CPR) kufanele kuqalwe ngokushesha. Umzuzu ngamunye wokulibaziseka kwezinyathelo zosizo lokuqala kunganciphisa izinga lempumelelo lokwelashwa.

• Usizo Lokuqala Olufanele : Imisebenzi efanele yosizo lokuqala nayo ibalulekile. Isibonelo, lapho kwenziwa i-CPR, kuyadingeka ukulandela izinyathelo ezifanele zokuhlinzwa, okuhlanganisa isilinganiso esifanele sokucindezelwa kwesifuba nokuphefumula okwenziwe. Ngaphezu kwalokho, uma isiguli sidle i-sodium cyanide, izindlela ezingafanele zokukhipha isisu zingadala ukufutha futhi zibeke impilo yesiguli engozini. Ngakho-ke, abasizi bokuqala kudingeka baqeqeshwe ukuqinisekisa ukuthi izinyathelo zosizo lokuqala zenziwa ngendlela efanele.

2.4 Ukwelashwa Esibhedlela

• Ukusetshenziswa Kwemithi Yokulwa Nezifo : Esibhedlela, ukusetshenziswa kwemithi yokwelapha ngesikhathi esifanele kuyisixhumanisi esibalulekile ekwelapheni ubuthi be-sodium cyanide. Ukwelashwa okuyinhloko kwemithi yokwelapha ubuthi be-cyanide ukwelashwa "nge-nitrite - thiosulfate". Ama-Nitrites (njenge-sodium nitrite) angaxuba ingxenye ye-hemoglobin evamile egazini ne-methemoglobin. I-Methemoglobin iqukethe i-ferric iron (Fe³⁺), enokunamathela okunamandla kwama-ion e-cyanide kune-cytochrome oxidase. Ngakho-ke, ingancintisana ne-cytochrome oxidase yama-ion e-cyanide, ibophe ama-ion e-cyanide ukuze yakhe i-cyanmethemoglobin, ngaleyo ndlela inciphise umphumela wokuvimbela wama-ion e-cyanide ku-cytochrome oxidase. Ngemuva kwalokho, kusetshenziswa i-thiosulfate. Ngaphansi kwesenzo se-enzyme yomzimba ye-rhodanese, i-thiosulfate isabela nama-ion e-cyanide ukuze yakhe i-thiocyanate engeyona enobuthi, ekhishwa emzimbeni ngomchamo. Uma umuthi wokwelapha ungasetshenziswa ngesikhathi ngokwesimo sesiguli, izinga lempumelelo lokwelashwa lizothuthukiswa kakhulu.

• Ukwelashwa Okuphelele : Ngaphezu kokusetshenziswa kwemithi yokwelapha, kudingeka nezinyathelo zokwelapha eziphelele. Lokhu kuhlanganisa nokugcina izimpawu ezibalulekile zesiguli, njengokuqinisekisa ukuphefumula okuzinzile ngokungenisa umoya ngomshini uma kudingeka, ukugcina umfutho wegazi ojwayelekile ngokushintsha uketshezi kanye nemithi evala igazi, kanye nokuvimbela nokwelapha izinkinga ezifana ne-cerebral edema. Isibonelo, ukusetshenziswa kwama-glucocorticoids, i-hypertonic glucose, kanye ne-vitamin C kungasiza ekunciphiseni i-cerebral edema. Uma lezi zinyathelo zokwelapha eziphelele zisetshenziswa ngempumelelo, kuzophinde kusize ekuthuthukiseni izinga lempumelelo lokwelashwa.

3. Isilinganiso Esijwayelekile Sezinga Lempumelelo Yokwelashwa

Ngokuvamile, uma ubuthi bumnene, isiguli siphathwa ngokushesha (imvamisa phakathi kwemizuzu engama-30 kuya kwehora elingu-1 ngemuva kokungenwa ubuthi), futhi yonke inqubo yokwelashwa, kuhlanganise nosizo lokuqala endaweni yesehlakalo kanye nokwelashwa esibhedlela, kwenziwa ngendlela efanele, izinga lokuphumelela lokwelashwa lingase libe phezulu, mhlawumbe lifinyelele ngaphezu kwama-80% kwezinye izimo. Kodwa-ke, ezimweni ezinzima, ikakhulukazi lezo ezinesikhathi eside sobuthi (ngaphezu kwamahora angu-2 - 3) kanye nokwelashwa sekwephuzile, izinga lokuphumelela lokwelashwa lingase libe ngaphansi kwama-20%, futhi kwezinye izimo ezinzima kakhulu, isiguli singase singakwazi ukusindiswa naphezu kwayo yonke imizamo.

Sengiphetha, izinga lokuphumelela ekwelapheni ubuthi be-sodium cyanide liyahlukahluka kuye ngezici eziningi. Isihluthulelo sokuthuthukisa izinga lokuphumelela silele ekuvimbeleni kusenesikhathi, okufika ngesikhathi futhi okulungile kuqala - usizo lokuqala endaweni yesigameko, kanye nokwelashwa kwezokwelapha okuphelele nokusebenzayo esibhedlela.