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NBRC Mock Exam TMC Review Test Questions With Answers Verified by Experts

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NBRC Mock Exam TMC Review Test Questions With Answers Verified by Experts A patient is receiving O2 from an E cylinder at 4 L/min through a nasal cannula. The cylinder pressure is 1900 psig. How long will the cylinder run until it is empty? After the Respiratory Therapist sets up a nonrebreathing mask on a patient at a flow rate of 10 L/min, the reservoir bag collapses before the patient finishes inspiring. The RT should do which of the following? A patient with carbon monoxide (CO) poisoning can best be treated with which of the following therapies The following blood gas levels have been obtained from a patient using a 60% aerosol mask What should the RT recommend at this time? The respiratory therapist receives an order to set up a moderate level of O2 on a patient who arrives in the ED breathing at a rate of 35 breaths/min. Which of the following O2 delivery devices is most appropriate to use in this situation?

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NBRC Mock Exam TMC Review Test Questions
With Answers Verified by Experts
AzpatientziszreceivingzO2zfromzanzEzcylinderzatz4zL/minzthroughzaznasalzcannula.zThezcylinderzpressurezisz1
900zpsig.zHowzlongzwillzthezcylinderzrunzuntilzitziszempty?



A.z47zmin

B.z1.7zh

C.z2.2zh

D.z3.6zhz-zCORRECTzANSWER-Ezcylinderz=z0.28z

1900x0.28/4z=z133/60z=z2.21z



Answer:zC.z2zhours,z21zminutes



AfterzthezRespiratoryzTherapistzsetszupzaznonrebreathingzmaskzonzazpatientzatzazflowzratezofz10zL/min,zthe
zreservoirzbagzcollapseszbeforezthezpatientzfinisheszinspiring.zThezRTzshouldzdozwhichzofzthezfollowing?z




A.zChangeztozazsimplezmaskzatzazflowzratezofz10zL/minz

B.zRemovezthezone-wayzvalvezfromzthezexhalationzport.

C.zPlacezthezpatientzonzcontinuouszpositivezairwayzpressurez(CPAP)

D.zIncreasezthezflowzrateztoz15zL/minz-zCORRECTzANSWER-D.zIncreasezthezflowzrateztoz15zL/min



Azpatientzwithzcarbonzmonoxidez(CO)zpoisoningzcanzbestzbeztreatedzwithzwhichzofzthezfollowingztherapies
?z



A.zNasalzCannulazatz6zL/min

B.zSimplezO2zmaskzatz10zL/min

C.zCPAPzandz60%zO2z

D.zNonrebreathingzmaskz-zCORRECTzANSWER-D.zNonrebreathingzmask

,Thezfollowingzbloodzgaszlevelszhavezbeenzobtainedzfromzazpatientzusingzaz60%zaerosolzmask.z



pH:z7.47

PaCO2:z31zmmHg

PaO2:z58zmmHg



WhatzshouldzthezRTzrecommendzatzthisztime?



A.zPlacezthezpatientzonzCPAP

B.zIncreasezthezO2ztoz70%z

C.zIntubatezandzplacezthezpatientzonzmechanicalzventilationz

D.zChangeztozaznonrebreathingzmaskz-zCORRECTzANSWER-A.zPlacezthezpatientzonzCPAP



Givenzthezfollowingzdata,zwhatziszthezpatient'sztotalzarterialzO2zcontent?z



pH:z7.41

PaCO2:z37zmmHg

PaO2:z88zmmHg

HCO3:z26zmEq/L

SaO2:z95%

Hb:z14zg/dL



A.z12zmL/dL

B.z14zmL/dL

C.z16zmL/dL

D.z18zmL/dLz-zCORRECTzANSWER-(Hbzxz1.36zxzSaO2)z+z(0.003zxzPaO2)z

(14zxz1.36zxz0.95)z+z(0.003zxz88)z

18.088z+z0.264

, =z18.352z



Answer:zD.z18zmL/dL



ThezrespiratoryztherapistzreceiveszanzorderztozsetzupzazmoderatezlevelzofzO2zonzazpatientzwhozarriveszinzth
ezEDzbreathingzatzazratezofz35zbreaths/min.zWhichzofzthezfollowingzO2zdeliveryzdevicesziszmostzappropriat
eztozusezinzthiszsituation?z



A.zSimplezO2zmaskzatz10zL/min

B.zNasalzcannulazatz4zL/min

C.zNRBzMaskzatz15zL/min

D.zAir-entrainmentzmaskzatz40%zO2z-zCORRECTzANSWER-D.zAir-entrainmentzmaskzatz40%zO2



AzseverezCOPDzpatientzarriveszinzthezemergencyzdepartmentzonzaz2zL/minznasalzcannula.zArterialzbloodzg
aszresultszfollow:z



pH:z7.32

PaCO2:z67zmmHg

PaO2:z62zmmHg

HCO3:z38zmEq/L



Whichzofzthezfollowingziszthezmostzappropriatezrecommendation?



A.zIncreasezthezliterzflowztoz4zL/min

B.zMaintainzthezcurrentzO2zlevel

C.zInstituteznoninvasivezpositivezpressurezventilationz(NPPV)z

D.zPlacezonzazNRBzmaskzatz12zL/minz-zCORRECTzANSWER-B.zMaintainzthezcurrentzO2zlevel

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