Asthma is a disease of reversible airflow obstruction characterized by: Correct Answer: bronchial
hyperreactivity
bronchoconstriction
chronic airway inflammation
FEV:
FVC: Correct Answer: forced expiratory volume in 1 second. Values between 80% to 120% are
considered normal
The volume of air that can be exhaled with maximum effort after a deep inhalation. Normal values are
= 3.7 in females and 4.8 L in males
Diffusion capacity: Correct Answer: the volume of a substance (carbon monoxide) transferred across
the alveoli into blood per minute per unit of alveolar partial pressure. CO is rapidly taken up by
hemoglobin. Its transfer is therefore limited mainly by diffusion.
The FEV1 is a measurement that provides? Correct Answer: objective data that can be used to
assess the severity and monitor the course of an exacerbation of asthma.
_______ is a disease of progressive loss of alveolar tissue and progressive airflow obstruction that is
not reversible Correct Answer: COPD
COPD usually includes: Correct Answer: dyspnea on exertion or at rest, chronic cough, and chronic
sputum production.
Home oxygen therapy if PaO2 < ___ mmHg, HCT> ___% or there is evidence of cor pulmonale.
Correct Answer: PaO2 < 55mmHg
HCT > 55%
Stages to decrease incidence of postoperative pulmonary complications: Correct Answer: encourage
cessation of smoking for at least 6 wks
An interscalene block typically causes ipsilateral phrenic nerve palsy and should avoided in these
patients? Correct Answer: severe COPD
Cystic Fibrosis:
The primary cause of morbidity and mortality in pts with CF is ?
The presence of a sweat chloride concentration greater than ___ plus the characteristic clinical
manifestations (cough, chronic purulent sputum production, exertional dyspnea) or family history of
the disease confirms the diagnosis of CF Correct Answer: Chronic pulmonary infection
70 mEq/L plus
Infection: