Solved

Passage Obstructive Respiratory Illnesses Are Characterized by an Increased Difficulty Exhaling

Question 95

Multiple Choice

Passage
Obstructive respiratory illnesses are characterized by an increased difficulty exhaling much of the air in the lungs.  Asthma and chronic obstructive pulmonary disease (COPD) are two of the most common obstructive respiratory illnesses.  Asthma is due to allergen hypersensitivity and can be identified by temporary airway inflammation, which causes the bronchioles to narrow.  The decreased airway diameter increases the resistance to airflow.  Subsequently, air becomes "trapped" in the lungs, restricting the amount of air that can be moved in each breath.COPD refers to a spectrum of disorders and can be a result of emphysema, the irreversible destruction of pulmonary tissue.  The breakdown of elastic proteins in the lungs results in a loss of pulmonary resiliency and chronic lung hyperinflation.  Because the walls between individual alveoli are broken down, the alveolar sacs that remain are larger.Lung diseases can be diagnosed and monitored using spirometry.  A spirometer measures the flow rate and volume of inhaled and exhaled air.  In one pulmonary test, a patient is asked to exhale forcibly and completely into a spirometer after maximum inhalation.  This test is done to measure the patient's forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) , the total amount of air exhaled in a single breath.
Passage Obstructive respiratory illnesses are characterized by an increased difficulty exhaling much of the air in the lungs.  Asthma and chronic obstructive pulmonary disease (COPD) are two of the most common obstructive respiratory illnesses.  Asthma is due to allergen hypersensitivity and can be identified by temporary airway inflammation, which causes the bronchioles to narrow.  The decreased airway diameter increases the resistance to airflow.  Subsequently, air becomes trapped in the lungs, restricting the amount of air that can be moved in each breath.COPD refers to a spectrum of disorders and can be a result of emphysema, the irreversible destruction of pulmonary tissue.  The breakdown of elastic proteins in the lungs results in a loss of pulmonary resiliency and chronic lung hyperinflation.  Because the walls between individual alveoli are broken down, the alveolar sacs that remain are larger.Lung diseases can be diagnosed and monitored using spirometry.  A spirometer measures the flow rate and volume of inhaled and exhaled air.  In one pulmonary test, a patient is asked to exhale forcibly and completely into a spirometer after maximum inhalation.  This test is done to measure the patient's forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) , the total amount of air exhaled in a single breath. <strong>Figure 1</strong>  Forced expiratory spirogram of a healthy individual Adapted from T. Barreiro, An Approach to Interpreting Spirometry. American Family Physician. ©2004 AAFP. -Primary ciliary dyskinesia (PCD) , a rare disease that impairs the normal function of cilia, is often misdiagnosed as atypical asthma because wheezing is observed in both illnesses.  Unlike asthma, PCD would cause the inability to: A) balance respiratory thermoregulation. B) cough or sneeze. C) remove inhaled particulates. D) speak in lower pitches. Figure 1  Forced expiratory spirogram of a healthy individual
Adapted from T. Barreiro, "An Approach to Interpreting Spirometry." American Family Physician. ©2004 AAFP.
-Primary ciliary dyskinesia (PCD) , a rare disease that impairs the normal function of cilia, is often misdiagnosed as atypical asthma because wheezing is observed in both illnesses.  Unlike asthma, PCD would cause the inability to:


A) balance respiratory thermoregulation.
B) cough or sneeze.
C) remove inhaled particulates.
D) speak in lower pitches.

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q90: Following digestion in the small intestine, certain

Q91: Passage<br>Neurulation refers to the early formation of

Q92: Passage<br>Viruses are known as obligate intracellular parasites

Q93: Which statement most accurately describes the role

Q94: Passage<br>Saliva, a secreted fluid with multiple physiologic

Q96: Passage<br>Spinal muscular atrophy (SMA) is an autosomal

Q97: Passage<br>At the blood-brain barrier, the cerebral spinal

Q98: Passage<br>The fruit fly Drosophila melanogaster is frequently

Q99: Passage<br>Parathyroid hormone (PTH) is an important regulator

Q100: Passage<br>Osteoarthritis (OA) is a disorder marked by