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1、BloodtestDefinition:aserologicanalysisofasampleofbloodTogettheinformationtheyneedfromtheblood,doctorsactuallydoseveraltestswiththebloodsample.Theseincludemeasurementofthelevelsofcellsandabloodsmear.Mainelementsinblood:Cells:redbloodcellswhitebloodcellsplateletPlasshengmaFuncti
2、on:tohelpdoctorsdiagnosediseases.Allthecomponentsinbloodhavetheirownfunction,andwillchangeinqualityorquantitywhensomedisorderhappentous.ThefunctionofthebloodtestRoutinebloodgenerallylookwhite,neutralcellpercentage,redbloodcell,hemoglobinandplateletsBloodbiochemicalenzymescande
3、tectliverandkidneyfunction,bloodlipids,heart,bloodelectrolytes.Bloodgasanalysisisusedtodeterminewhetherthebodyacid-basebalancedisorders,anddegreeofhypoxiaandhypoxiaThefunctionofthebloodtestBloodtestscanhelppatientswithearlydetectionanddiagnosisofsomediseasesSuchaswhetherdiagno
4、sisofanemia,whethertohavebloodsystemdiseases,responseofbonemarrowhematopoieticfunction,etcAssayliverresult,sexuallytransmitteddiseases,AIDS,whetherbepregnant,pregnancyisnormal,whetherthedruguse,etcExample：Ifapersonsufferfromanaemia,theirhaemoglobinlevelwillalwaysbelessthannorm
5、al.Thenumberofwhitebloodcellsmaygoesupwhenapersonhasabacterialinfection.Lownumbersofplateletscanmakeapersonvulnerabletobleeding,sometimesevenwithoutinjuryoccurring.BloodtestsofgeneralstepsThemostcommonlyusedmethodistestofperipheralbloodbloodtest。Massagethefingerpointtoanabdome
6、nLocalskindisinfectwithalcoholcottonballBloodinthelefthandthumbandforefingerintotheringfingeronbothsidesofthepatients,righthandholdsterilebloodcollectionneedle,sincethetipofthefingerinsiderapidlypunctureWithsterilespongeandwipeawaythefirstdropofblood,accordingtotheneedtolearna
7、certainamountofblood.UsingsterilecottonballpinthewoundtostopthebleedingScopeofapplicationPeripheralbloodinthelefthandrighthand(lefthandednessis)fourthfingersfeetsideasthebestbloodcollectionsiteWhoevertheusedbloodislessthan0.1mlofinspectionitems,suchasbloodroutine,bloodtype,pla
8、teletcount,hemoglobindetermination,themalariaparasitesinglebl
