Chapter 13; Improving Oxygenation and Management of ARDS

Chapter 13; Improving Oxygenation and Management of ARDS

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. During mechanical ventilation of a patient with COPD, the PaO₂ = 58 mm Hg and the F_IO₂ = 0.5. If the desired PaO₂ is 65 mm Hg, the F_IO₂ needs to be changed to which of the following?

a.	0.44
b.	0.56
c.	0.65
d.	0.74

 

 

ANS:   B

 

DIF:    2                      REF:    pg. 260

 

2. During mechanical ventilation of a patient with CHF, the PaO₂ = 38 mm Hg and the F_IO₂ = 0.6. If the desired PaO₂ is 60 mm Hg, the F_IO₂ needs to be changed to which of the following?

a.	0.65
b.	0.75
c.	0.85
d.	0.95

 

 

ANS:   D

 

DIF:    2                      REF:    pg. 260

 

3. Thirty minutes after intubation and initiation of mechanical ventilation, a patient’s PaO₂ = 55 mm Hg and the F_IO₂ = 0.5. To what should the F_IO₂ be set to obtain a PaO₂ of 80 mm Hg?

a.	0.65
b.	0.75
c.	0.85
d.	0.95

 

 

ANS:   B

 

DIF:    2                      REF:    pg. 260

 

4. Calculate the pulmonary shunt fraction using the following data: P_b = 757 mm Hg; hemoglobin (Hb) = 11g/dL; F_IO₂ = 0.5; PaO₂ = 86 mm Hg; PaCO₂ = 40 mm Hg; SaO₂ = 91%; = 40 mm Hg; = 71%; respiratory exchange quotient (R) = 0.8.

a.	19%
b.	23%
c.	26%
d.	32%

 

 

ANS:   A

 

DIF:    2                      REF:    pg. 260

 

5. Calculate the pulmonary shunt fraction for a patient with the following data: P_b = 760 mm Hg; Hb = 10 g/dL; respiratory quotient = 0.8; F_IO₂ = 0.6; PaO₂ = 100 mm Hg; SaO₂ = 93%; PaCO₂ = 45 mm Hg;  = 36 mm Hg;  = 70%.

a.	13 %
b.	26%
c.	30 %
d.	41%

 

 

ANS:   B

 

DIF:    2                      REF:    pg. 266