COHN-S Exam Questions and
Answers Updated 2026
ToluleneM-
MAnswerMAnMisocyanate,MisMaMrespiratoryMsensitizerMthatMcanMleadMtoMoccupationalMa
sthma
PrimaryMconcernMofMaMkeroseneMsplashM-MAnswerMLungMirritation
BenzeneM-
MAnswerMAdverselyMaffectsMtheMhematopoieticMsystem.MTherefore,MindividualsMwithMaMh
istoryMofMthrombocytopeniaMwouldMbeMatMincreasedMriskMifMexposedMtoMBenzene
SWOTM-
MAnswerMStrengthsMWeaknessesMOpportunitiesMThreats;MwayMtoMassesManMenvironment
JaundiceMisMaMcommonMsymptomMofM-MAnswerMCarbonMtetrachlorideMpoisoning
OSHAMPELMforMairborneMleadMexposureM-MAnswerM50ug/m3
ActionMlevelMforMleadMbloodMlevelsM-MAnswerM30ug/100g
WhatMuniqueMcontributionMcanMtheMOHNMmakeMtoMworkplaceMsafetyMandMhealthMprog
rams?M-MAnswerMProvideMscreeningMtoMspecificMexposures
WhatMareMotherMproblemsMthatMusuallyMaccompaniesMsleepMapnea?M-
MAnswerMDiabetesMandMcardiovascularMdisease
DoxycyclineM-MAnswerMAndManti-
malarialMpreventative.MTakeMtheMdrugMdailyMoneMorMtwoMdaysMbeforeMtravelMandMfor
M28MdaysMafterMaMtrip.
TheMoccupationalMhealthMandMsafetyMOSHA'sM18001MisMdescribedMas?M-
MAnswerMAnMinternationalMconsensusMstandardMforMoccupationalMhealthMandMsafetyMma
nagementMsystems
,WhatMareMtheMfiveMclassesMofMdrugsMtestedMforMDOTMpurposes?M-
MAnswerMCannabinoids,Mcocaine,Mamphetamines,Mopiates,MPCP
PrimaryMpreventionM-
MAnswerMActionsMthatMchangeMoverallMbackgroundMconditionsMtoMpreventMsomeMunwan
tedMeventMorMcircumstance,MsuchMasMinjury,Mdisease,MorMabuse.MForMexampleMimmuniz
ations
secondaryMpreventionM-MAnswerM-
focusesMonMearlyMidentificationMofMindividualsMorMcommunitiesMexperiencingMillness,Mpro
vidingMtreatment,MandMconductingMactivitiesMthatMareMgearedMtoMpreventMworseningMhe
althMstatus
-
examples:McommunicableMdiseaseMscreeningMandMcaseMfinding;MearlyMdetectionMandMtre
atmentMofMdiabetes;MexerciseMprogramsMforMolderMadultMclientsMwhoMareMfrail.MScreeni
ngs
tertiaryMpreventionM-
MAnswerMInterventionMforMexampleMchronicMdiseaseMmonitoringMcardiacMrehabMphysical
MrehabMtreatment
Pre-placementMExamM-
MAnswerMMatchMtheMjobMwithMemployee,MandMsureMtheMcompatibilityMofMtheMperson
MwithMtheMjobMdemands,MandMserveMasMaMbaselineMforMfutureMevaluations
NursingMProcessM-
MAnswerMADPIE;MASSESSMENT,MDIAGNOSIS,MPLANNING,MINTERVENTION,MEVALUATION
NursingMDiagnosisM-
MAnswerMdescribesMaMhealthMproblemMthatMcanMbeMtreatedMbyMnursingMmeasures;Ma
MstepMinMtheMnursingMprocess
EmergencyMtriageMcategoriesM-MAnswerMLevelM1M-MresuscitationMCPR,M
LevelM2-MemergentMbasedMonMclarityMofMmindMacuteMdistress
LevelM3-MurgentMneedMatMleastMtwoMresourcesM30MtoM40%MofMERMvisits
LevelM4-Mnon-urgentMrequireMsomeMhospitalMresource
,LevelM5-MrequiresMlittleMorMnoMtreatment
HazmatMresponses;MthreeMzonesM-MAnswerMHot-
EvacuationMwithMABCs,MonlyMenterMwithMappropriateMPPE
Warm-Decontamination,MABCs,MonlyMenterMwithMappropriateMPPE
Cool-StabilizationMandMtreatment,Mnon-
contaminatedMarea,MPPEMnotMrequiredMtoMtreatMtheMdecontaminatedMevacuee.
PrimaryMSurveyM-
MAnswerManMexaminationMofMtheMpatientMtoMdetermineMtheMpresenceMofManyMlife-
threateningMemergencies;MtheMinitialMassessmentMofMairway,Mbreathing,MandMcirculationM
onMaMpatient
SuspectMC-spineMdislocationMwithMhigh-voltageMshock
SupplementMoxygenMinMallMtraumaticMinjuries
SecondaryMSurveyM-MAnswerMaMhead-to-
toeMphysicalMassessment;ManMadditionalMassessmentMofMaMpatientMtoMdetermineMtheMe
xistenceMofManyMinjuriesMotherMthanMthoseMfoundMinMtheMprimaryMsurvey
PhysicalMAssessmentM-MAnswerMIPPA;MInspect,MPalpate,MPercuss,MAuscultate
AbdominalMexamMorderMIAPP;MInspect,MAuscultate,MPercuss,MPalpate
ApproximatelyM80MtoM90%MofMallMtypesMofMskinMdiseaseMcanMbeMclassifiedMas?M-
MAnswerMContactMdermatitis
SensitizingMagentsM-
MAnswerMResponseMafterMsingleMorMmultipleMexposuresMandMonlyMandMsomeMindividual
s
SystemicMresponsesMincludeMdifficultyMbreathing,MinflammationMofMAirways,MpulmonaryMe
dema
CommonMchemicalMsensitizingMagentsM-
MAnswerMPhenol,Mepoxy,Mrubber,Macrylics,Mnickel,MplantMresins
ApproximatelyM20%MofMcommonMcontactMdermatitisMcomesMfrom?M-
MAnswerMPoisonMivy,MoakMandMsumac
, SolventsMthatMmostMfrequentlyMcauseMoccupationalMskinMdisease:M-
MAnswerMAcetone,McoronatedMhydrocarbons,Mtoluene,Mxylene,MpetroleumMdistillate,Malcoh
ol
ChloracneM-
MAnswerMSwellingMsebaceousMglandsMfromMexposureMtoMhydrocarbonsMfor,MexampleMdi
oxin
MaculeM-MAnswerMflat,McoloredMspotMonMtheMskin,MFreckles,Mmeasles
papuleM-
MAnswerMsmall,Msolid,MraisedMlesionMonMsurfaceMofMtheMskin;Mwart,MinsectMbite
PustulesM-MAnswerMpus-filledMsacsMsuchMasMthoseMseenMinMacne,MorMpimples
VesiclesM-MAnswerMFluidMfilledMblisterMsuchMasMthoseMseenMinMchickenMpox
NodulesM-
MAnswerMsmallMlumps,Mlesions,MorMswellingsMthatMareMfeltMwhenMtheMskinMisMpalpate
d;MsolidMmass
whealM-MAnswerMhives
TetanusM(lockjaw)M-MAnswerMClostridiumMtetani
ResultsMinMtectonicMorMtonicMcontractionsMofMtheMmuscles
Incubation:M2MdaysM-M2MmonthsM(mostlyMtwoMweeks)
ElectricalMburnsMcause?M-MAnswerMNeurologic,MvascularMandMdermalMinjuries
ElectricalMburnsMtravel?M-
MAnswerMLeastMtoMmostMpathMofMresistance;Mnerve,Mblood,Mvessel,Mmuscles,Mskin,Mten
don,Mfat,Mbone
Answers Updated 2026
ToluleneM-
MAnswerMAnMisocyanate,MisMaMrespiratoryMsensitizerMthatMcanMleadMtoMoccupationalMa
sthma
PrimaryMconcernMofMaMkeroseneMsplashM-MAnswerMLungMirritation
BenzeneM-
MAnswerMAdverselyMaffectsMtheMhematopoieticMsystem.MTherefore,MindividualsMwithMaMh
istoryMofMthrombocytopeniaMwouldMbeMatMincreasedMriskMifMexposedMtoMBenzene
SWOTM-
MAnswerMStrengthsMWeaknessesMOpportunitiesMThreats;MwayMtoMassesManMenvironment
JaundiceMisMaMcommonMsymptomMofM-MAnswerMCarbonMtetrachlorideMpoisoning
OSHAMPELMforMairborneMleadMexposureM-MAnswerM50ug/m3
ActionMlevelMforMleadMbloodMlevelsM-MAnswerM30ug/100g
WhatMuniqueMcontributionMcanMtheMOHNMmakeMtoMworkplaceMsafetyMandMhealthMprog
rams?M-MAnswerMProvideMscreeningMtoMspecificMexposures
WhatMareMotherMproblemsMthatMusuallyMaccompaniesMsleepMapnea?M-
MAnswerMDiabetesMandMcardiovascularMdisease
DoxycyclineM-MAnswerMAndManti-
malarialMpreventative.MTakeMtheMdrugMdailyMoneMorMtwoMdaysMbeforeMtravelMandMfor
M28MdaysMafterMaMtrip.
TheMoccupationalMhealthMandMsafetyMOSHA'sM18001MisMdescribedMas?M-
MAnswerMAnMinternationalMconsensusMstandardMforMoccupationalMhealthMandMsafetyMma
nagementMsystems
,WhatMareMtheMfiveMclassesMofMdrugsMtestedMforMDOTMpurposes?M-
MAnswerMCannabinoids,Mcocaine,Mamphetamines,Mopiates,MPCP
PrimaryMpreventionM-
MAnswerMActionsMthatMchangeMoverallMbackgroundMconditionsMtoMpreventMsomeMunwan
tedMeventMorMcircumstance,MsuchMasMinjury,Mdisease,MorMabuse.MForMexampleMimmuniz
ations
secondaryMpreventionM-MAnswerM-
focusesMonMearlyMidentificationMofMindividualsMorMcommunitiesMexperiencingMillness,Mpro
vidingMtreatment,MandMconductingMactivitiesMthatMareMgearedMtoMpreventMworseningMhe
althMstatus
-
examples:McommunicableMdiseaseMscreeningMandMcaseMfinding;MearlyMdetectionMandMtre
atmentMofMdiabetes;MexerciseMprogramsMforMolderMadultMclientsMwhoMareMfrail.MScreeni
ngs
tertiaryMpreventionM-
MAnswerMInterventionMforMexampleMchronicMdiseaseMmonitoringMcardiacMrehabMphysical
MrehabMtreatment
Pre-placementMExamM-
MAnswerMMatchMtheMjobMwithMemployee,MandMsureMtheMcompatibilityMofMtheMperson
MwithMtheMjobMdemands,MandMserveMasMaMbaselineMforMfutureMevaluations
NursingMProcessM-
MAnswerMADPIE;MASSESSMENT,MDIAGNOSIS,MPLANNING,MINTERVENTION,MEVALUATION
NursingMDiagnosisM-
MAnswerMdescribesMaMhealthMproblemMthatMcanMbeMtreatedMbyMnursingMmeasures;Ma
MstepMinMtheMnursingMprocess
EmergencyMtriageMcategoriesM-MAnswerMLevelM1M-MresuscitationMCPR,M
LevelM2-MemergentMbasedMonMclarityMofMmindMacuteMdistress
LevelM3-MurgentMneedMatMleastMtwoMresourcesM30MtoM40%MofMERMvisits
LevelM4-Mnon-urgentMrequireMsomeMhospitalMresource
,LevelM5-MrequiresMlittleMorMnoMtreatment
HazmatMresponses;MthreeMzonesM-MAnswerMHot-
EvacuationMwithMABCs,MonlyMenterMwithMappropriateMPPE
Warm-Decontamination,MABCs,MonlyMenterMwithMappropriateMPPE
Cool-StabilizationMandMtreatment,Mnon-
contaminatedMarea,MPPEMnotMrequiredMtoMtreatMtheMdecontaminatedMevacuee.
PrimaryMSurveyM-
MAnswerManMexaminationMofMtheMpatientMtoMdetermineMtheMpresenceMofManyMlife-
threateningMemergencies;MtheMinitialMassessmentMofMairway,Mbreathing,MandMcirculationM
onMaMpatient
SuspectMC-spineMdislocationMwithMhigh-voltageMshock
SupplementMoxygenMinMallMtraumaticMinjuries
SecondaryMSurveyM-MAnswerMaMhead-to-
toeMphysicalMassessment;ManMadditionalMassessmentMofMaMpatientMtoMdetermineMtheMe
xistenceMofManyMinjuriesMotherMthanMthoseMfoundMinMtheMprimaryMsurvey
PhysicalMAssessmentM-MAnswerMIPPA;MInspect,MPalpate,MPercuss,MAuscultate
AbdominalMexamMorderMIAPP;MInspect,MAuscultate,MPercuss,MPalpate
ApproximatelyM80MtoM90%MofMallMtypesMofMskinMdiseaseMcanMbeMclassifiedMas?M-
MAnswerMContactMdermatitis
SensitizingMagentsM-
MAnswerMResponseMafterMsingleMorMmultipleMexposuresMandMonlyMandMsomeMindividual
s
SystemicMresponsesMincludeMdifficultyMbreathing,MinflammationMofMAirways,MpulmonaryMe
dema
CommonMchemicalMsensitizingMagentsM-
MAnswerMPhenol,Mepoxy,Mrubber,Macrylics,Mnickel,MplantMresins
ApproximatelyM20%MofMcommonMcontactMdermatitisMcomesMfrom?M-
MAnswerMPoisonMivy,MoakMandMsumac
, SolventsMthatMmostMfrequentlyMcauseMoccupationalMskinMdisease:M-
MAnswerMAcetone,McoronatedMhydrocarbons,Mtoluene,Mxylene,MpetroleumMdistillate,Malcoh
ol
ChloracneM-
MAnswerMSwellingMsebaceousMglandsMfromMexposureMtoMhydrocarbonsMfor,MexampleMdi
oxin
MaculeM-MAnswerMflat,McoloredMspotMonMtheMskin,MFreckles,Mmeasles
papuleM-
MAnswerMsmall,Msolid,MraisedMlesionMonMsurfaceMofMtheMskin;Mwart,MinsectMbite
PustulesM-MAnswerMpus-filledMsacsMsuchMasMthoseMseenMinMacne,MorMpimples
VesiclesM-MAnswerMFluidMfilledMblisterMsuchMasMthoseMseenMinMchickenMpox
NodulesM-
MAnswerMsmallMlumps,Mlesions,MorMswellingsMthatMareMfeltMwhenMtheMskinMisMpalpate
d;MsolidMmass
whealM-MAnswerMhives
TetanusM(lockjaw)M-MAnswerMClostridiumMtetani
ResultsMinMtectonicMorMtonicMcontractionsMofMtheMmuscles
Incubation:M2MdaysM-M2MmonthsM(mostlyMtwoMweeks)
ElectricalMburnsMcause?M-MAnswerMNeurologic,MvascularMandMdermalMinjuries
ElectricalMburnsMtravel?M-
MAnswerMLeastMtoMmostMpathMofMresistance;Mnerve,Mblood,Mvessel,Mmuscles,Mskin,Mten
don,Mfat,Mbone