NBRC MOCK TMC EXAM REVIEW
QUESTIONS AND ANSWERS
A mpatient mis mreceiving mO2 mfrom man mE mcylinder mat m4 mL/min mthrough ma mnasal
mcannula. mThe mcylinder mpressure mis m1900 mpsig. mHow mlong mwill mthe mcylinder
mrun muntil mit mis mempty?
A. m47 mmin
B. m1.7 mh
C. m2.2 mh
D. m3.6 mh m- mcorrect manswers m-E mcylinder m= m0.28 m
1900x0.28/4 m= m133/60 m= m2.21 m
Answer: mC. m2 mhours, m21 mminutes
, After mthe mRespiratory mTherapist msets mup ma mnonrebreathing mmask mon ma
mpatient mat ma mflow mrate mof m10 mL/min, mthe mreservoir mbag mcollapses mbefore
mthe mpatient mfinishes minspiring. mThe mRT mshould mdo mwhich mof mthe mfollowing? m
A. mChange mto ma msimple mmask mat ma mflow mrate mof m10 mL/min m
B. mRemove mthe mone-way mvalve mfrom mthe mexhalation mport.
C. mPlace mthe mpatient mon mcontinuous mpositive mairway mpressure m(CPAP)
D. mIncrease mthe mflow mrate mto m15 mL/min m- mcorrect manswers m-D. mIncrease mthe
mflow mrate mto m15 mL/min
A mpatient mwith mcarbon mmonoxide m(CO) mpoisoning mcan mbest mbe mtreated mwith
mwhich mof mthe mfollowing mtherapies? m
A. mNasal mCannula mat m6 mL/min
B. mSimple mO2 mmask mat m10 mL/min
C. mCPAP mand m60% mO2 m
D. mNonrebreathing mmask m- mcorrect manswers m-D. mNonrebreathing mmask
The mfollowing mblood mgas mlevels mhave mbeen mobtained mfrom ma mpatient musing ma
m60% maerosol mmask. m
pH: m7.47
PaCO2: m31 mmmHg
PaO2: m58 mmmHg
What mshould mthe mRT mrecommend mat mthis mtime?
A. mPlace mthe mpatient mon mCPAP
B. mIncrease mthe mO2 mto m70% m
C. mIntubate mand mplace mthe mpatient mon mmechanical mventilation m
D. mChange mto ma mnonrebreathing mmask m- mcorrect manswers m-A. mPlace mthe
mpatient mon mCPAP
Given mthe mfollowing mdata, mwhat mis mthe mpatient's mtotal marterial mO2 mcontent? m
pH: m7.41
PaCO2: m37 mmmHg
PaO2: m88 mmmHg
HCO3: m26 mmEq/L
SaO2: m95%
Hb: m14 mg/dL
A. m12 mmL/dL
B. m14 mmL/dL
C. m16 mmL/dL
D. m18 mmL/dL m- mcorrect manswers m-(Hb mx m1.36 mx mSaO2) m+ m(0.003 mx mPaO2)
m
QUESTIONS AND ANSWERS
A mpatient mis mreceiving mO2 mfrom man mE mcylinder mat m4 mL/min mthrough ma mnasal
mcannula. mThe mcylinder mpressure mis m1900 mpsig. mHow mlong mwill mthe mcylinder
mrun muntil mit mis mempty?
A. m47 mmin
B. m1.7 mh
C. m2.2 mh
D. m3.6 mh m- mcorrect manswers m-E mcylinder m= m0.28 m
1900x0.28/4 m= m133/60 m= m2.21 m
Answer: mC. m2 mhours, m21 mminutes
, After mthe mRespiratory mTherapist msets mup ma mnonrebreathing mmask mon ma
mpatient mat ma mflow mrate mof m10 mL/min, mthe mreservoir mbag mcollapses mbefore
mthe mpatient mfinishes minspiring. mThe mRT mshould mdo mwhich mof mthe mfollowing? m
A. mChange mto ma msimple mmask mat ma mflow mrate mof m10 mL/min m
B. mRemove mthe mone-way mvalve mfrom mthe mexhalation mport.
C. mPlace mthe mpatient mon mcontinuous mpositive mairway mpressure m(CPAP)
D. mIncrease mthe mflow mrate mto m15 mL/min m- mcorrect manswers m-D. mIncrease mthe
mflow mrate mto m15 mL/min
A mpatient mwith mcarbon mmonoxide m(CO) mpoisoning mcan mbest mbe mtreated mwith
mwhich mof mthe mfollowing mtherapies? m
A. mNasal mCannula mat m6 mL/min
B. mSimple mO2 mmask mat m10 mL/min
C. mCPAP mand m60% mO2 m
D. mNonrebreathing mmask m- mcorrect manswers m-D. mNonrebreathing mmask
The mfollowing mblood mgas mlevels mhave mbeen mobtained mfrom ma mpatient musing ma
m60% maerosol mmask. m
pH: m7.47
PaCO2: m31 mmmHg
PaO2: m58 mmmHg
What mshould mthe mRT mrecommend mat mthis mtime?
A. mPlace mthe mpatient mon mCPAP
B. mIncrease mthe mO2 mto m70% m
C. mIntubate mand mplace mthe mpatient mon mmechanical mventilation m
D. mChange mto ma mnonrebreathing mmask m- mcorrect manswers m-A. mPlace mthe
mpatient mon mCPAP
Given mthe mfollowing mdata, mwhat mis mthe mpatient's mtotal marterial mO2 mcontent? m
pH: m7.41
PaCO2: m37 mmmHg
PaO2: m88 mmmHg
HCO3: m26 mmEq/L
SaO2: m95%
Hb: m14 mg/dL
A. m12 mmL/dL
B. m14 mmL/dL
C. m16 mmL/dL
D. m18 mmL/dL m- mcorrect manswers m-(Hb mx m1.36 mx mSaO2) m+ m(0.003 mx mPaO2)
m
