A. Penicillins: xws li penicillin G, amoxicillin, ampicillin, thiab piperacillin. Ua ntej siv cov tshuaj tua kab mob penicillin, koj yuav tsum nug kom ntxaws seb koj puas muaj keeb kwm ntawm kev ua xua ntawm penicillin, lwm yam tshuaj ua xua, thiab kab mob ua xua. Kev kuaj tawv nqaij, qhov ntau ntawm cov tshuaj tiv thaiv tawv nqaij feem ntau yog 500U / ml. Thaum muaj kev poob siab anaphylactic, 0.1% epinephrine 0.5-1ml yuav tsum tau txhaj tshuaj subcutaneously tam sim ntawd, thiab tsis muaj kev txhim kho hauv kev ua haujlwm kho mob. Rov ua dua nws li 3-5 feeb tom qab, thiab koom tes nrog lwm yam kev ntsuas kev cawm.
B. Cephalosporins: Raws li cov kab mob tua kab mob, ua haujlwm tua kab mob, ruaj khov rau β-lactamase thiab lub raum lom, nws tau muab faib ua plaub tiam. Thawj tiam: cefalexin, cefazolin, cefradine, cefadroxil; tiam thib ob: cefaclor, cefuroxime, cefprozil, cefotiam, thiab lwm yam. Cov uas ua xua rau cephalosporins thiab cov uas muaj penicillin anaphylactic poob siab lossis keeb kwm cov tshuaj tiv thaiv tam sim no raug txwv los ntawm cov tshuaj no.
C. Tshiab β-lactams
3. Beta lactamase
Beta-lactamase yog chav kawm ntawm cov enzymes zais los ntawm cov kab mob tiv thaiv kab mob lactam tshuaj tua kab mob. Nws tuaj yeem ua ke nrog lub nplhaib beta-lactam txhawm rau tshem lub nplhaib beta-lactam thiab raug rhuav tshem, thiab poob cov tshuaj tua kab mob. Nws yog lub laj thawj tseem ceeb rau kev tiv thaiv cov kab mob no.
4. Beta lactam tsis kam
Thawj txoj hauv kev tiv thaiv yog siv cov enzyme los hydrolyze lub β-lactam nplhaib. Los ntawm kev tsim cov enzymes xws li β-lactamase, cov kab mob tuaj yeem nthuav tawm ring-lactam nplhaib hauv tshuaj tua kab mob, ua rau tshuaj tua kab mob tsis muaj txiaj ntsig.
Cov noob rau cov enzymes no tuaj yeem yog ntawm cov kab mob chromosomes lawv tus kheej, lossis lawv tuaj yeem tau los ntawm plasmid pauv. Nws cov noob qhia tuaj yeem pib tom qab kis tau cov tshuaj tua kab mob.
Kev tsim cov β-lactamase los ntawm cov kab mob tsis txhais tau tias kev siv cov tshuaj tua kab mob β-lactam tsis muaj txiaj ntsig. Qee zaum antibiotics-lactam tshuaj tua kab mob tuaj yeem siv ib txhij nrog β-lactamase inhibitors.
Txawm li cas los xij, koj yuav tsum ua tib zoo xav ua ntej siv tshuaj tua kab mob β-lactam tiv thaiv kab mob uas xav tias tsim tawm β-lactamase. Tshwj xeeb, kev siv tshuaj tua kab mob β-lactam tuaj yeem ua rau cov kab mob tsim tawm β-lactamase. Yog tias siv cov tshuaj tua kab mob lact-lactam thaum pib ntawm kev kho mob ua rau tsim cov β-lactamase, nws yuav ua rau nws nyuaj rau siv lwm yam tshuaj tua kab mob lact-lactam tom qab ntawd.
Txoj hauv kev tiv thaiv thib ob hloov pauv tus qauv ntawm penicillin khi protein. antibiotics-lactam cov tshuaj tua kab mob tsis khi rau cov protein uas khi rau penicillin, yog li antibiotics-lactam cov tshuaj tua kab mob tsis tuaj yeem rhuav tshem cov kab mob cell phab ntsa. Methicillin-resistant Staphylococcus aureus siv txoj hauv kev no los tawm tsam antibiotics-lactam tshuaj tua kab mob. Txoj kev tiv thaiv no tseem tsis suav nrog kev siv antibiotics-lactam tshuaj tua kab mob rau kev kho mob.
Cefalexin yog dab tsi?
1. Txhais
Cephalexin belongs rau antibiotics-lactam tshuaj tua kab mob thiab cephalosporins.
2. Lub tshuab ua haujlwm
Nws cov txheej txheem ntawm kev ua yog txhawm rau tiv thaiv cov cell phab ntsa sib txuas ntawm cov kab mob faib cov cell los ntawm kev khi rau ib lossis ntau tus penicillin-khi cov protein (PBPs) (cephalexin feem ntau khi rau PBP-3), yog li ua si cov tshuaj tua kab mob. Cov kab mob tua kab mob ntawm cephalexin zoo ib yam li cephalosporin, tab sis nws cov tshuaj tua kab mob ua phem dua li tom kawg. Ntxiv rau Enterococcus thiab methicillin-resistant Staphylococcus, Gram-positive cocci rhiab rau cephalexin.
Tshuaj tua kab mob sab nrauv. Feem ntau siv rau kab mob Gram zoo thiab tsis zoo, xws li: mob khaub thuas, hemorrhagic septicemia, streptococcosis, swine erysipelas, anthrax, emphysema, malignant edema, actinomycosis, necrotizing bacillus disease, nuv kawg Septicemic fever (41-43 ° C) lossis tsis tu ncua kub (qis dua 37 ° C) tshwm sim los ntawm tus kab mob spirochete, plab zom mov, haus dej txias, pw tsis tsaug zog, tsis pom kev taug kev, pob ntseg xiav, kua muag, thiab lwm yam.
Nyob rau tib lub sijhawm, nws tau siv los kho ntau yam kab mob ua paug, xws li: kis kab mob ntsws pleura, mob ntsws, mob atrophic rhinitis, kab mob pob ntseg xiav, mob qog noj ntshav, mob qog noj ntshav, mob qog noj ntshav, mob plab thiab lwm yam hnoos thiab ua pa, ua pa nyuaj, cev xeeb tub tsawg, ntau dua yug me nyuam los yog tuag ntawm cov menyuam npua 7-10 hnub tom qab yug los, lub mis o, mis tsis zoo, txo cov kua mis, ko taw thiab lub qhov ncauj ua rau mob plab, ua paug thiab ua paug.
2. Nervous system cov tshuaj tiv thaiv: Ob peb tus neeg mob yuav muaj kiv taub hau, diplopia, tinnitus, qaug dab peg thiab lwm yam kev ua haujlwm ntawm lub paj hlwb.
3. Hepatotoxicity: Ob peb tus neeg mob yuav muaj lub siab ua haujlwm tsis tu ncua (nce qib ntawm cov ntshav alanine aminotransferase, aspartate aminotransferase, thiab alkaline phosphatase) tom qab kev tswj hwm.
4. Nephrotoxicity: Ob peb tus neeg mob tuaj yeem nce ib ntus hauv urea nitrogen, creatine, thiab creatinine, thiab qee zaum muaj proteinuria thiab oliguria.
Kev Tshawb Nrhiav Txoj Cai ntawm Betalactam Cefalexin Test
Betalactam Cefalexin Test Kit yog colloidal gold immunochromatography assay uas kuaj pom Beta-lactams, Cefalexin hauv cov qe thiab cov khoom lag luam thiab ua tau raws li EU MRL. Cov khoom siv no tuaj yeem thov rau ntawm qhov chaw sim nrawm los ntawm ntau lub chaw haujlwm.
Kuaj rau Betalactam Cefalexin Test
Cov piv txwv suav nrog: qe, khoom qe.
Kev Tshawb Fawb Txwv ntawm Betalactam Cefalexin Test
LOD tuaj yeem hloov pauv raws li qhov xav tau lossis qhov txawv ntawm qhov sib txawv, thov mus saib hauv phau ntawv qhia kom paub meej ntxiv.
Qhov tseem ceeb ntawm Betalactam Cefalexin Test
Betalactam Cefalexin Test tuaj yeem pab cov tuam txhab tsim khoom, cov koom haum tswj hwm, thiab pej xeem saib xyuas cov khoom lag luam zoo thiab pab tib neeg tiv thaiv lawv txoj kev noj qab haus huv.
Thaum tshuaj tua kab mob tau siv thawj zaug rau tib neeg, peb suav tias lawv yog "catholicon". Raws li qhov teeb meem ntawm kev siv tshuaj tua kab mob txuas ntxiv mus zuj zus, lawv qhov kev tiv thaiv kuj tseem ua rau muaj kev puas tsuaj loj rau tib neeg.
Yog li, hauv lub neej txhua hnub, peb yuav tsum zam zaub mov nrog tshuaj tua kab mob seem. Thawj kauj ruam rau kev pab tus kheej: peb yuav tsum kuaj cov tshuaj tua kab mob seem.
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