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A portable film is ordered immediately after a patient is intubated in the emergency department. Which of the following distances confirms proper placement of the endotracheal tube? - ✔️ ✔️ 3 - 5 cm above the carina
The DLCO is a test that is used to measure the: - ✔️ ✔️ ability of gas to move across the alveolar-capillary membrane
Which of the following conditions are not common causes of restrictive lung disease? - ✔️ ✔️ asthma and emphysema
The volume of air inhaled and exhaled during quiet breathing is known as the: - ✔️ ✔️ tidal volume
What may cause the FVC to decrease in a patient with a restrictive lung disorder? - ✔️ ✔️ a decrease in lung compliance
The closed-system helium dilution method is used to measure: - ✔️ ✔️ FRC
Which of the following is the primary instrument used in performing PFTs? - ✔️ ✔️ spirometer
An increase of elasticity of the lung tissue will cause the FRC to: - ✔️ ✔️ decrease Which of the following is not a parameter that has been studied to establish normal values for PFTs? - ✔️ ✔️ weight
Which of the following factors has the greatest influence on lung size and predicted PFT values? - ✔️ ✔️ height
The FEV1 usually is expressed as a percentage of the observed: - ✔️ ✔️ FVC
The MVV test usually is performed over a period of: - ✔️ ✔️ 12 - 15 seconds
Which test is often used preoperatively to evaluate whether the patient may have postoperative complications? - ✔️ ✔️ MVV test
To determine whether there is a positive response to bronchodilator therapy, improvement must be seen in - ✔️ ✔️ FVC1/FVC FEV FEF25%-75%
Which of the following diseases is not associated with a reduced DLCO? - ✔️ ✔️ emphysema
The reason why carbon monoxide is used in DLCO studies instead of oxygen is because carbon monoxide is: - ✔️ ✔️ diffusion limited and not perfusion limited
In a patient with an exacerbation of asthma, airway resistance will be: - ✔️ ✔️ increased
What will happen to the static lung compliance of a postoperative heart patient with left lower lobe atelectasis? - ✔️ ✔️ it will be less than normal
Obstructive lung disorders are characterized by a reduction in: - ✔️ ✔️ expiratory flows
Which of the following conditions is associated with low FVC, low FEV1 but normal FEV1/FVC, small TLC and low DLCO, and no response to bronchodilator? - ✔️ ✔️ pulmonary fibrosis
AP portable films are obtained to evaluate all of the following except: - ✔️ ✔️ lung tumor growth
A lateral decubitus view is able to detect as little as _____ ml of the pleural fluid. - ✔️ ✔️ 25 - 50
Radiographic signs of consolidation include all of the following except: - ✔️ ✔️ low shift of the diaphragms
The presence of "hot spots" in the PET scan is indicative of: - ✔️ ✔️ metabolically active tumor or infection
A sign of a good A & P chest xray reveals how many ribs showing - ✔️ ✔️ 10 A patient wighs 45kg (100 lb). The patient's predicted tidal volume is - ✔️ ✔️ 300Ml
A patient has a FEV1 that is calculated to be 80% of his or her FVC. On the basis of this finding, the patient probably: - ✔️ ✔️ normal lungs
A patient has a suspected diagnosis of asthma, Which of the following tests would be
the least helpful in assessing the patient for this condition? - ✔️ ✔️ diffusion study
