Lateral decubitus radiograph is often used to help confirm the following:   

A severe COPD patient is on a 28% air entrainment mask and has a PaO2 of 61 mm Hg.  Which of the following should the respiratory therapist recommend at this time?

What portion of the airway are bronchial washings generally obtained? 

A 45-year-old male patient that weights 150 kg is undergoing polysomnography to determine appropriate CPAP levels.  The patient’s baseline AHI is 51.  At a CPAP level of 9 cm H2O, the AHI is now 7.  The respiratory therapist should recommend which of the following? 

An 80-year-old male is admitted to the hospital complaining of dyspnea and general pulmonary congestion with moist crepitant rales.  Chest radiograph reveals fluffy infiltrates and a batwing pattern.  Which of the following best represents the patient’s condition?  

While assessing a patient’s chest radiograph, the respiratory therapist observes an area of hyperlucency.  This may be the result of which of the following? 

The respiratory therapist is reviewing the results of a pulmonary function test.  The data shows FEV1/FEV% is 58%, SVC is 81% of predicted.  DL,CO is 62% of predicted.  Which of the following most likely represents the patient’s condition? 

The class Animal is _____ . Select ALL that apply.

A researcher would like to examine whether there is a consistent, predictable relationship between political preference and personality. A sample of 100 students is obtained. The results are summarized in the following frequency distribution. Which chi-square value is obtained when conducting a chi-square test of independence, and which decision should be made regarding the hypothesis test using α = 0.05?                                                                         Political Preference                                                             Liberal                                         Conservative                      Type A Personality            ​ Observed Frequency = 15 Expected Frequency = 23.65 Observed Frequency = 40 Expected Frequency = 31.35 Observed Frequency = 28 Observed Frequency = 17                      Type B Personality Expected Frequency = 19.35 Expected Frequency = 25.65 ​

The following table shows the results of an analysis of variance comparing three treatment conditions with a sample of n = 7 participants in each condition. Note that several values are missing in the table. What is the missing value for MSbetween? Source         SS      df      MS Between      20      xx      xx      F = xx Within         xx      xx        2 Total            xx     xx