Exam (elaborations)
PFT MIDTERM EXAM QUESTIONS AND ANSWERS CORRECT 100% VERIFIED.
- Course
- Institution
PFT MIDTERM EXAM QUESTIONS AND ANSWERS CORRECT 100% VERIFIED.
[Show more]
Content preview
PFT MIDTERM EXAM QUESTIONS ANDANSWERS CORRECT 100% VERIFIED.
In restrictive lung disease, which lung volume compartment is not
decreased?
Correct Answer -None of the above
During the measurement of FRC using the body plethysmograph, at least
three to five satisfactory panting maneuvers should be obtained, with at
least three FRC values that agree within:
Correct Answer -5%
During the multiple-breath open-circuit nitrogen (N2) washout, N2 is
washed out of the lungs while the patient breathes:
Correct Answer -100% O2
Total lung capacity can be measured by all of the following except:
Correct Answer -Water-displacement test
When measuring FRC in the body plethysmograph, the relationship between
mouth pressure and body box volume changes occur during:
Correct Answer -The closed shutter manuever
All the following are criteria for an acceptable DLCO maneuver except:
Correct Answer -Smooth expiration that is more than 4 seconds
,The rate of diffusion of a gas across the alveolar-capillary membrane
depends on all of the following except:
Correct Answer -None of the above
The maximum number of attempts at a DLCO should be?
Correct Answer -5
The single-breath DL,CO test requires the use of which inspired gases?
Correct Answer -0.3% Co and inert gas
CO is used for measuring the diffusion ability of the lungs because:
Correct Answer -Combines with Hb molecules much like oxygen does.
During the breath-hold portion of the DL,CO maneuver, it is recommended
that the patient not create excessive positive intra-thoracic pressure
because:
Correct Answer -It may cause the DLCO to be reduced
The following DL,CO results are obtained from a patient:
Maneuver 1: DL,CO = 18.4 mL/min/mm Hg
Maneuver 2: DL,CO = 14.2 mL/min/mmHg
Which of the following is most appropriate:
Correct Answer -Perform additional manuevers
, In patients with emphysema the DL,CO is reduced because of:
Correct Answer -Loss of alveolar-capillary membrane surface area
Which of the following disorders commonly have a low DLCO:
Correct Answer -Pulmonary fibrosis
An inert gas is included in the single-breath DL,CO test inspired gas mixture
to:
Correct Answer -Measure reduction in CO concentration because of dilution
According to the 2005 ATS/ERS guidelines for DL,CO, correction for
hemoglobin (Hb) in adult males assumes a standard Hb of:
Correct Answer -14.6 g/dL
According to the 2005 ATS/ERS guidelines for DL,CO, the breath-hold time
should be:
Correct Answer -8 to 12 seconds
According to the 2005 ATS/ERS guidelines for DL,CO, at least two acceptable
maneuvers must be performed and agree within:
Correct Answer -10% or 3 units, whichever is larger
Which of the following is not a reason for an increased DL,CO:
Correct Answer -Pneumonectomy
CO has an affinity for Hb that is:
Correct Answer -210 times that of O2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller saraciousstuvia. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79373 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now