Iikomityi zokuvavanya iziyobisiziyindlela ethandwa kakhulu yovavanyo lweziyobisi.Uvavanyo lwechiza lomchamo luqhele ukusetyenziselwa ukuhlolwa kwangaphambili kokusebenza, uvavanyo lokuthobela, kunye nothintelo lokusetyenziswa gwenxa kweziyobisi ekhaya.Nokuba ukhetha ukuvavanyelwa iziyobisi ezi-5, ezili-10, okanye ezili-12,
Uvavanyo lweziyobisi lusetyenziselwa ukufumanisa ubukho bamachiza angekho mthethweni kwaye lubandakanya ukusetyenziswa kolwelo lomzimba xa kuvavanywa.Uvavanyo lwechiza lomchamo lolona didi lusetyenziswayo lovavanyo lwechiza.
Ngokuqhelekileyo, ingqokelela yeesampulu zomchamo wovavanyo lweziyobisi lwenziwa kwisiza ngokwesicelo somqeshi okanye umlawuli wesikolo.Oku kunokwenziwa kwakhona kwilabhoratri kwaye iziphumo zifundelwe umncedisi welebhu okanye abasebenzi bezonyango.Nangona kunjalo, kukho iimveliso zovavanyo lweziyobisi ezikuvumela ukuba uvavanye ekhaya okanye ufumane iziphumo ngoko nangoko kwindawo leyo.
Iikomityi zokuvavanya iziyobisi zisetyenziselwa ukuvavanya iisampuli zomchamo zamachiza amaninzi awohlukeneyo ahlala exhatshazwa.Iikomityi zokuvavanya iziyobisi zihlala zikhethwa ngenxa yokuba azibizi, kulula ukuyisebenzisa, kwaye zibonelela ngeziphumo zovavanyo ngexesha elifutshane.Ezi zitya ziza kunye nemicu yovavanyo okanye amakhadi ovavanyo afakwe kwisampulu ukufunda iziphumo.
Kukho iintlobo ezahlukeneyo zeekomityi zokuvavanya iziyobisi.Ezinye iikomityi ze-urinalysis ziyakwazi ukuvavanya izinto ezininzi ngexesha elinye, ngelixa ezinye zenzelwe iziyobisi ezithile.Ukukhetha ikomityi echanekileyo yokuchama kuxhomekeke ekubeni kutheni uthatha uvavanyo lwechiza kwaye lwenzelwe ntoni.

amphetamine (AMP), buprenorphine, cocaine (COC), methamphetamine, opioids, phencyclidine kunye neTCAs, barbiturates, benzodiazepines (BZOs), MDMA/ecstasy, methadone, oxycodone, propoxyphene, kunye nentsangu./intsangu.

Ezi mvavanyo zisebenzisa i-immunoassays ukujonga iyeza elingumzali kunye/okanye i-metabolites.Uvavanyo lwe-Immunoassays luvavanyo olujonga izinto ezithile kunye neemolekyuli kwaye lunike iziphumo ezilungileyo okanye ezimbi.Awona machiza avavanyiweyo aquka icocaine, amphetamines, opioids, marijuana, pentachlorophenol, methadone kunye nebenzodiazepines (BZOs).Uvavanyo lokuhlola umchamo lwenziwa ngokukhawuleza kodwa alunako ukunika ezona ziphumo zithembekileyo.Ukuba uvavanyo lokujonga umchamo luqinisekile, kufuneka luhlale luqinisekiswa ngovavanyo lomchamo oluqinisekisa ngakumbi.

Uhlalutyo lokuchama lwamachiza lunokuza ngeendlela ezahlukeneyo, ezifana nezixhobo zokuvavanya ichiza lokuchama kunye namakhadi eziyobisi okuhlaziya ukuchama.Ikomityi yokuqokelela umchamo oyinyumba enomtya wobushushu inokuba sisixhobo sakho sokuxilonga.Iqinisekisa ukuba uqokelela umlinganiselo ochanekileyo womchamo, izisa iziphumo ngokukhawuleza, kwaye ibandakanya umcu wobushushu ukuqinisekisa ukuba isampulu ayiphazanyiswanga.

Uvavanyo lwechiza lomchamo lusebenza kakhulu ekufumaneni ukusetyenziswa kwechiza kutshanje (ngokuqhelekileyo kwiintsuku ezi-1-3 zokugqibela).Iimvavanyo zeziyobisi zomchamo zifanelekile nayiphi na injongo yokuvavanya kwaye ziyafumaneka kuluhlu olubanzi lwezinto ezingekho mthethweni kunye neziyobisi ezichazwe ngugqirha.

Umzimba womntu ngamnye usabela ngendlela eyahlukileyo kumayeza ahlukeneyo.Amanye amachiza ahlala kumzimba womnikezeli ixesha elide (iiveki ukuya kwiinyanga), ngelixa amanye ahlala emzimbeni ixesha elifutshane (iiyure ukuya kwiintsuku).Uvavanyo lwechiza lomchamo luhlala lufumanisa iziyobisi eziyingxaki ngoko nangoko emva kokusetyenziswa.Ezinye iikomityi zokuqokelela zinovakalelo ngakumbi kunezinye kwaye zibonelela ngefestile yokubona kwangoko okanye eyandisiweyo.

Uvavanyo lwechiza lomchamo luluncedo kuvavanyo lwechiza kwiindawo ezininzi ezahlukeneyo.Iimvavanyo ezahlukeneyo zamachiza omchamo ziyakwazi ukubona izinto ezininzi ezahlukeneyo ezingekho mthethweni ngokweemfuno zakho.Ukuhlolwa kweziyobisi zomchamo kunika iziphumo zovavanyo olukhawulezayo nezichanekileyo.Ukuba uvavanyo lwenziwa njengoko kuyalelwe kwaye lutolikwa ngokuchanekileyo, iziphumo zovavanyo zinokuqinisekiswa ngakumbi yilabhoratri yokuqinisekisa iziphumo.Ukuqinisekisa ukuba iziphumo zovavanyo lwechiza zisoloko zichanekile, qiniseka ukuba usebenzisa kuphela iikomityi zokuqokelela umchamo ongenazintsholongwane ukunqanda izinto ezingeyonyani okanye ezobuxoki.