Babban Haɗarin Binciken Bambancin

Wadatacce

• Babban haɗari
• 1. M rashin lafiyan dauki
• 2. guba sakamakon abu
• 3. Hanyoyin aiki masu juyayi
• Misalan gwaje-gwaje tare da bambanci

Gwaje-gwaje masu banbanci, wanda kuma ake kira jarrabawar bambanci, ana yin gwajin hoto ne tare da amfani da abubuwa waɗanda ke taimakawa wajen samun kyakkyawar ma'anar hotunan da aka kirkira, wanda ke ba da damar kimantawar likita.

Waɗannan abubuwa ana kiransu "media mai banbanci", saboda suna iya karɓar ionizing radiation daga cikin jarabawar da kuma samar da bayyanannun hotuna akan allon na'urar. Akwai nau'ikan bambanci daban-daban, tare da abubuwa daban-daban na sinadarai, kamar su barium sulfate, iodinated bambanci ko gadolinium, alal misali, waɗanda aka zaɓa bisa ga gwajin da za a yi, wanda za a iya yi da baki, cikin jini ko allura a cikin ramin da ake so .

Duk da fa'idodi, amfani da bambanci don jarrabawa yana ƙunshe da haɗari, galibi na haifar da sakamako masu illa kamar halayen rashin lafiyan jiki, saukar da hauhawar jini ko maye na kodan da zuciya, alal misali, saboda wannan dalili, ya kamata a yi amfani da su a cikin takamaiman lamura , tare da isharar likita.

Babban haɗari

Kodayake gwaje-gwaje da bambanci sun kasance cikin aminci, kuma likitoci sun fi iya tantance wanda ya kamata da wanda bai kamata yayi ba, yana yiwuwa waɗannan gwaje-gwajen na iya haifar da wasu haɗarin lafiya. Wasu daga cikin mahimman abubuwan illa sun haɗa da:

1. M rashin lafiyan dauki

Wanda kuma ake kira anafilaxis, ana yin wannan aikin ne da bayyanar amya, kumburin fata, saukar da matsa lamba, bugun zuciya da sauri, bronchospasm da kuma glottis edema. Maganin rashin lafiyan saboda amfani da bambance-bambancen yana bukatar likita mai sauri ya kula dashi a cikin asibiti, saboda hakan yana wakiltar mummunan haɗari ga lafiyar mutumin da abin ya shafa.

Wata hanyar da za a yi kokarin kauce wa wannan nau'in aikin ita ce tambaya ko mutumin yana da kowane irin rashin lafiyan, kuma hakan ma na kowa ne ga likitoci su nuna amfani da magungunan anti-alerji kafin wasu gwaje-gwaje da ke da hadari mafi girma, kamar su antihistamines ko corticosteroids .

2. guba sakamakon abu

Bambancin na iya samun tasiri mai guba a jiki, kuma wasu halayen sun haɗa da tasiri kai tsaye a kan jini, kamar saukar da matsa lamba ko kumburi na shafin aikace-aikacen. Bugu da kari, sinadarin na iya haifar da illar kai tsaye ga wasu gabobin, wanda zai iya zama:

• Fata: zafi a shafin aikace-aikacen, redness, kumburi ko dunƙulewar dunƙule;
• Ciki da hanji: tashin zuciya, amai ko gudawa;
• Kodan: rage samuwar fitsari ko gazawar koda;
• Brain: ciwon kai, jiri, rikicewar hankali ko kamawa;
• Huhu: gajeren numfashi, bronchospasm ko haifar da hare-haren asma;
• Zuciya: ƙãra karfin jini, kamawar zuciya na arrhythmias.

Gabaɗaya, waɗannan tasirin suna da alaƙa da kashi ko ɗimbin matsakaicin matsakaici da aka yi amfani da shi, kuma yana iya bambanta gwargwadon saurin jiko da yanayin amfani da abu, ko na baka ko na jini, misali.

3. Hanyoyin aiki masu juyayi

Hakanan an san shi da halayen vasomotor ko tasoshin vagal, ba a haifar da su kai tsaye ta hanyar bambancin da aka yi amfani da su ba kuma ba a san dalilinsu ba, ana alakanta su da damuwa ko zafi yayin gudanarwarta, wanda ke haifar da wasu matsaloli a cikin tsarin jijiyoyi da jijiyoyin jini.

Wadannan halayen sun hada da digo cikin hawan jini, raguwar bugun zuciya, suma, rikicewar hankali, rashin iska ko zufa mai sanyi, misali.

Misalan gwaje-gwaje tare da bambanci

Wasu daga cikin manyan gwaje-gwajen da aka yi amfani dasu tare da bambanci sune:

• Utedididdigar hoto: yawanci ana yin sa ne da bambance-bambancen iodinated, wanda ake amfani da shi sosai don gano raunuka a gabobin jiki, kamar kwakwalwa, huhu, hanta, gallbladder, pancreas, ƙashi ko bangon ciki, misali, galibi ƙari, cututtuka ko canje-canje a cikin jijiyoyin jini. Nemi ƙarin bayanai game da yadda ake yin sa kuma menene ƙididdigar lissafi don;
• MRI: Yawanci ana amfani da Gadolinium a matsayin bambanci, kasancewar jarrabawa ce da ake amfani da ita don gano raunin ƙwaƙwalwa ko na kashin baya, da kuma cikin sassan jiki masu laushi kamar jijiyoyi, haɗin gwiwa da jijiyoyin jini;
• Angiography: iodinated bambanci shine mafi yawan amfani dashi a cikin wannan gwajin, wanda ke ba da kyakkyawar duban cikin jijiyoyin jini da kuma lura da cututtuka irin su aneurysms ko arteriosclerosis, misali. Fahimci yadda ake yi da kuma menene angiography;
• Urography: shine ɗayan gwaje-gwaje wanda zai baka damar duba anatomy na urinary tract da kimanta ƙarfin aikin kodan;
• Scintigraphy: akwai nau'ikan scintigraphy, don gabobi daban-daban na jiki, kuma ana yin gwaji don lura da sauye-sauyen aiki a gabobi kamar zuciya, ƙashi, huhu, thyroid ko kwakwalwa, misali. Kamar yadda yake bambanta, ana amfani da abubuwa daban-daban, tare da wasu manyan sune technetium da gallium;
• Nazarin radiyo na gastro-intestinal tract: akwai gwaje-gwaje da yawa da ake amfani da su don kimanta yanayin narkewar abinci, wanda yawanci ke amfani da barium sulfate a matsayin bambanci, daga cikinsu akwai opaque enema, seriography ko bambancin rediyo, misali;
• Cholangiography: shi ne nau'in hoton da aka yi don kimanta sashin biliary, kuma yin amfani da bambancin iodinated abu ne gama gari.

Baya ga wannan, akwai wasu gwaje-gwaje da yawa da za a iya yi tare da taimakon bambanci, kamar su mammography don tantance canje-canje a cikin zagayawa a cikin nono ko hysterosalpingography don tantance tsarin haihuwar mata, misali, wanda ya kamata likita ya nuna gwargwadon bukatun kowane mutum.