Which of the following components are provided by pulmonary function testing?  Lung volumes/capacities  Pulmonary (airway) mechanics  Diffusion capacity of the lungs  Distribution of ventilation/perfusion

What type of obstruction is present below?  

A 36-year-old female patient has been complaining of shortness of breath.  She has worked in a textile factory for 15 years.  The following PFT values are hers.  What would be the correct evaluation for this patient?       TESTS                   ACTUAL             PREDICTED             %PREDICTED       FVC                          2.38                       3.9                              61%       FEV1                        1.83                        2.9                              63%       FEV3                        2.24                        3.7                              61%       FEV1/FVC %           77%                       74%                             ——       FEF25%-75%              2.5                          4.2                              59%       MVV                         76                           96                              79%       RV                            .61                           .97                             63%       TLC                          2.99                        4.85                            62%       DLCO                      6.8                           8.9                              76%

Which of the following provocation dosage represents a positive response to a methacholine challenge test? (1)  PD6FEV1 = 0.12 mg/ml (2)  PD12FEV1 = 0.24 mg/ml (3)  PD15FEV1 = 0.96 mg/ml (4)  PD22FEV1 = 3.8 mg/ml

The following patient is a 55-year-old male that has smoked for 30 pack/yrs.  What is the interpretation of his pulmonary function study based on the information below?       TESTS                   ACTUAL             PREDICTED             %PREDICTED       FVC                         2.17                       4.1                              53%       SVC                         2.62                       4.1                              64%       FEV1                       1.O4                      3.1                               34%       FEV3                        2.0                        3.9                               51%       FEV1/FVC%           48%                      76%                             ——       MVV                        1.6                        3.5                               46%       RV                            1.34                      0.82                            163%       FRC                         2.32                       1.64                            141%       TLC                         7.48                       4.92                            152%       DLCO                       4.4                        8.6                               51%

Which of the following is typically elevated in restrictive lung disease?  Lung volumes  Lung compliance  Airway resistance  Pressure needed to expand the lung.

Which of the following factors could result to a decreased DLCO? (Multiple Answers) 

Which of the following statements are true concerning DLCO? (Multiple Answers) (A)  test may not be valid if the patient has smoked a cigarette just prior to the test (B)  it measures the ability of the lungs to transfer gases across the alveolar-capillary membrane (C)  may be decreased in both obstructive and restrictive lung diseases (D)  test can be done with a simple spirometry

Which of the following statement about FEV1 measurements are true? (Multiple Answers) It is a measurement of volume. The recorded FEV1 must come from the best FVC effort. It is often compared to the size of the FVC. It is expelled in the first second of the FVC maneuver.

What type of flow-volume loop (red line) is represented in the graph below?