Mlingo wa methylene blue: kumvetsetsa mg, mL, maperesenti, ndi madontho

Palibe chiwerengero chimodzi cha madontho a methylene blue oti aliyense atenge. Kusankha mlingo kumafuna kudziwa chifukwa cha chithandizo, kapangidwe ka mankhwala, njira yoperekera, kuwunika wodwala, ndi malangizo a chithandizo. Lebo ya ndende imayankha funso locheperapo: kuchuluka kwa methylene blue komwe kuli mu kuchuluka kotchulidwa kwa madzi osungunulamo chinthucho.

Madzi a 1% w/v ali ndi 10 mg mu mililita iliyonse. Kusintha kumeneku kwa mayunitsi sikutsimikizira ngati munthu ayenera kuwagwiritsa ntchito, kuchuluka komwe ayenera kulandira, kapena kangati. Bukuli limafotokoza za kuyeza kuti lebo kapena malangizo athe kufufuzidwa popanda kusandutsa masamu kukhala malangizo a chithandizo.

Miyezo inayi yomwe ndi yosavuta kusokoneza

Galamu imodzi ndi yofanana ndi mamiligalamu 1,000. Mililita imodzi ndi yofanana ndi ma microliter 1,000. Kusintha kumeneku kumalumikiza mayunitsi oyeza mtundu umodzi wa kuchuluka. Mamiligalamu ndi mamililita amayeza zinthu zosiyana, ndipo amalumikizidwa ndi ndende ya madzi osungunulamo chinthucho.

Kwa madzi omwe chinthu chosungunukacho chagawikana mofanana:

Amount in mg = concentration in mg/mL × measured volume in mL

Mayunitsi a voliyumu amachotsana. Zotsatira zake ndi kulemera kwa chinthu chomwe chili mu gawo loyezedwalo, lomwe nthawi zina limatchedwa aliquot. Fomulayi siyidalira ngati gawolo likugwiritsidwa ntchito pofufuza, popaka utoto, kapena ngati mankhwala olembedwa ndi wopereka chithandizo; kugwiritsa ntchito kovomerezeka kumafuna mfundo zina.

Werengani chomwe peresenti yazikidwa pa icho

Zilembo zomwe zimatsatira peresenti zimasonyeza chomwe chiwerengerocho chikugawidwa ndi icho. Zida zothandizira za Avantor zimasiyanitsa kuchuluka kotengera kulemera, voliyumu, ndi kulemera pa voliyumu.

1% w/v imatanthauza 1 g ya chinthu chosungunulidwa chotchulidwacho mu 100 mL ya madzi onse omalizidwa. Kusintha magalamu kukhala mamiligalamu kumapereka 1,000 mg ÷ 100 mL, kapena 10 mg/mL. “Madzi onse omalizidwa” ndi chisakanizo chonse chinthu chikasungunuka, osati voliyumu ya madzi chinthu chosanayikidwemo.

1% w/w imatanthauza 1 g ya chinthu chosungunulidwa mu 100 g ya madzi onse osungunulamo chinthucho. Imafotokoza kulemera poyerekeza ndi kulemera. Kuti muwerengere zomwe zili mu voliyumu yoyezedwa, mukufunikanso kachulukidwe ka madzi omalizidwawo mu g/mL. Kachulukidwe ka ufa wouma sikapereka mfundo imeneyo.

Ngati lebo imangoti “1%,” yang'anani mfundo zake zotsagana nayo kuti mudziwe chomwe peresentiyo yazikidwa pa icho kapena mtengo wa mg/mL wotchulidwa momveka bwino. Musangosankha maziko ake chifukwa chiwerengerocho chikufanana ndi cha pa lebo ya chinthu china.

Zitsanzo zowerengera kuchuluka pogwiritsa ntchito ndende

Tebulo loyambirira lofananitsa ili limagwiritsa ntchito zitsanzo zongoganizira zomwe zosungunukazo zagawikana mofanana. Mavoliyumu oy ezedwa asankhidwa kuti asonyeze masamuwo. Izi ndi kuchuluka komwe kuli m'madziwo, osati milingo yolangizidwa kapena ndondomeko yoperekera milingo.

Mizere yachiwiri ndi yachitatu imafotokoza chithunzi cha pachikuto: mavoliyumu ofanana angakhale ndi kuchuluka kosiyana kwa chinthucho. Mizere yachiwiri ndi yachinayi imasonyeza zosiyana ndi zimenezo: mavoliyumu osiyana angakhale ndi kuchuluka kofanana. Malangizo a voliyumu sangatengedwe n'kugwiritsidwa ntchito pa ndende ina popanda kufufuza masamuwo.

Chitsanzo cha w/w chimagwiritsa ntchito kachulukidwe kongopangidwa kuti chiphunzitse, osati khalidwe loyezedwa la chinthu cha Blupreme. Chitsanzo chake cha 0.5 mL chimalemera 0.52 g; peresenti imodzi ya kulemera kumeneko ndi 0.0052 g, kapena 5.2 mg. Kachulukidwe kakakhala kosadziwika, zotsatira za mg zooneka ngati zolondola kwambiri zingabise kuganizira kopanda umboni.

Gwiritsani ntchito chowerengera chosinthira ndende ya methylene blue kuti mufufuze ubale umenewu pogwiritsa ntchito mfundo zanu zolembedwa. Chimawerengera kulemera komwe kulimo; sichisankha mlingo wa munthu.

Chifukwa chake kuwerenga madontho kumasiya muyezo wosadziwika

Dontho limapangidwa ndi madzi ndi chipangizo chotulutsira pamikhalidwe inayake yogwiritsira ntchito. Silimangokhala 0.05 mL, ndipo chodonthozera chodzaza sichimangokhala 1 mL.

Mu kafukufuku wa Brown ndi anzake wa 2004 wokhudza zodonthozera mankhwala omwedwa a ana, ofufuza anayesa mankhwala ndi madzi okonzedwa m'mikhalidwe ya mu labotale komanso ndi anthu odzipereka. Kupendeketsa chodonthozera kufika pafupifupi madigiri 45 kuchokera pamalo oimirira molunjika kunachepetsa voliyumu yotulutsidwa ndi kuwonjezera kusasinthasintha kwake. Uwu unali kafukufuku wa chipangizo, osati kutsimikizira botolo lililonse la methylene blue kapena kuyesa milingo ya chithandizo.

Kuti muwerengere kulemera kwapakati pa dontho, pamafunika ndende ndi voliyumu yapakati ya dontho yoyezedwa. Kuyerekezera kulondola kwa miyezo kuyenera kukhala kwa chipangizocho ndi madziwo. Chiwerengero cha madontho chotengedwa kuchokera ku botolo lina chimataya kulumikizana kumeneku, ngakhale mabotolo onse awiri akusonyeza peresenti yofanana.

Ngati mankhwala amadzi omwedwa alembedwa ndi wopereka chithandizo, funsani katswiri wa mankhwala kuti atsimikizire chipangizo choyenera chokhala ndi mizere yoyezera komanso voliyumu yofanana ndi yomwe yalembedwa. Malangizo a FDA okhudza chitetezo cha mankhwala amadzi amagwiritsa ntchito mamililita ndi mizere yoyezera ya chipangizo yofanana nawo. Lembani 0.5 mL, yokhala ndi ziro koyambirira, kuti kusawona kadontho ka desimali kusakhale kosavuta kuisintha kukhala 5 mL. Buku la kuwerenga chodonthozera chokhala ndi mizere yoyezera limafotokoza momwe mungamvetsetsere zizindikiro zake. Musayerekezere voliyumu yocheperapo kuposa yomwe mizere yowerengeka ya chipangizocho ingasonyeze.

Kupereka milingo kuchipatala kumakhala ndi zochitika zake zenizeni

Malangizo a ku US olembera PROVAYBLUE amafotokoza mankhwala a 5 mg/mL operekedwa kudzera m'mtsempha pochiza methemoglobinemia yopezeka pambuyo pobadwa mwa akulu ndi ana. Mlingo wake woyambirira wotchulidwa pa lebo ndi 1 mg/kg, woperekedwa ndi ogwira ntchito zachipatala kwa mphindi 5 mpaka 30. Chithandizo china chimadalira momwe wodwala akuyankhira chithandizo, kuwunika kwa mu labotale, ndi kugwira ntchito kwa impso.

Chifukwa cha chithandizocho, njira yoperekera, ndi kuyang'anira wodwala ndi mbali za ndondomekoyo. Leboyo siikhazikitsa mlingo womwedwa tsiku lililonse wowonjezera mphamvu, kuganiza, kapena kutalikitsa moyo. Kusintha chiwerengero chake cha mg/kg kukhala madontho kungasunge masamuwo koma n'kutaya maziko a zachipatala ogwiritsira ntchito mankhwalawo. Buku la jakisoni wa methylene blue ndi kulowetsa kwake m'mtsempha limafotokoza chifukwa chake kapangidwe ka mankhwala nakonso n'kofunika.

Lebo yomweyo imaletsa kugwiritsa ntchito kwa anthu omwe ali ndi kuchepa kwa G6PD chifukwa cha chiopsezo cha kuchepa kwa magazi chifukwa cha kuwonongeka kwa maselo ofiira a magazi, imachenjeza za matenda oopsa a serotonin syndrome akagwiritsidwa ntchito ndi mankhwala okhudza serotonin ndi ma opioid, ndipo imatchula zoopsa zokhudzana ndi mimba. Kuchuluka kocheperako koyezedwa sikutsimikizira kuyenerera. Buku la chitetezo cha methylene blue limafotokoza mwatsatanetsatane mikhalidwe yoyenera kuganiziridwa ndi mmene imachitirana ndi mankhwala ena.

Pangani malangizo kukhala otheka kufufuzidwa

Musanatanthauzire malangizo aliwonse, lembani zinthu izi pamodzi:

1. Chizindikiritso cha chinthu: kapangidwe kake, njira yoperekera yotchulidwa pa lebo, ndi mawu onse ofotokoza mphamvu yake.
2. Maziko a ndende: mg/mL, w/v, kapena w/w, pamodzi ndi kachulukidwe ka madzi osungunulamo chinthucho ngati kakufunika.
3. Kuyeza: mL yomwe ikufunidwa ndi chipangizo chomwe chingayeze voliyumuyo momveka bwino.
4. Malangizo a chithandizo, ngati alembedwa: kuchuluka, njira yoperekera, kangati, nthawi yonse, ndi amene walemba mankhwalawo.

Ngati ndende kapena maziko a kuyeza palibe, zitsimikizireni musanagwiritse ntchito kuwerengera. Ngati malangizo a chithandizo palibe, tebulo losinthira mayunitsi silingawapereke.