RT Ch. 3 Mechanics Practice Quiz-C

35. What is the normal MEP?

at least 100 cm H2O

41. The lung's elastic recoil is

generated by elastic fibers of the lung parenchyma

41. Frictional resistance is

force that opposes expansion of lungs

35. If MIP is too low, patient will not be able to

inhale well.

39. Only a little change in lung volume causes inhalation, so muscles don't have to work hard.

Low compliance

35. What reflects respiratory muscle strength?

Both MIP and MEP

35. Severe compromise is first seen when MEP falls below

50 cm H2O

34. Atelectasis is suspected when

There is a low functional residual capacity

35. If MEP is too low, patient will not be able to

cough well.

34. High work of breathing (WOB) is caused by

Low FRC

35. Severe compromise is first seen when MIP falls below

50 cm H2O

39. More elastance =

Less compliance

42. As lung volume increases, the recoil forces

increase

41. Elastic resistance is

presence of recoil

39. Only a little change in pressure causes inhalation.

High elastance

34. Collapsed alveoli strongly oppose inflation because

their high surface tension

43. Compliance falls as lung volume

increases

41. Surface-tension force is

major contributor to the lung's elasticity

34. Atelectasis:

reduces lung compliance

36. Which disease is NOT known for decreased MIP or MEP?

Diabetes

35. What is the normal MIP?

at least 80 cm H2O