ACTUAL EXAM WITH QUESTIONS AND
CORRECT VERIFIED ANSWERS GRADED A+ ||
100% GUARANTEED PASS NEWEST VERSION
Both carbon dioxide and oxygen are able to bind with hemoglobin. - Answer
true
True/False:
Hypoventilation is associated with decreased PCO2. - Answer false
The breathing rate is determined by input from ______ that monitor oxygen,
carbon dioxide, and pH levels in the blood. - Answer chemoreceptors
Lung _____ is the term used to describe the ease or difficulty with which the lungs
can be inflated. - Answer compliance
True/False:
Asthma is considered reversible airway bronchoconstriction. - Answer true
True/False:
,Asthma is considered non-reversible airway bronchoconstriction. - Answer
false
True/False:
Intrathoracic pressure is always greater than intrapleural pressure. - Answer
false
True/False:
Excess surface tension makes lung inflation harder. - Answer true
The diaphragm is innervated by _____. - Answer C3, C4, C5
_____ is the flow of gases into and out of the alveoli of the lungs. - Answer
ventilation
Risk factors for asthma include each of the following except: - Answer drug
overdose
People with emphysema would exhibit each of the following except: - Answer
cyanosis and fluid retention
, People with chronic bronchitis would exhibit each of the following except: -
Answer barrel chest
Each of the following disorders are correctly paired with related characteristics
except: - Answer know the following pairs:
atelectasis- bronchial obstruction
ARDS- hyaline membrane
asthma- inflammation
respiratory acidosis- hypercapnia
A 10-year-old boy who is having an acute asthma attack is brought to the ER. He is
observed to be sitting up and struggling to breathe. His breathing is accompanied
by use of accessory muscles, a weak cough, and audible wheezing sounds. His
pulse is rapid and weak, and both heart and breath sounds are distant on
auscultation. His parents relate that his asthma began to worsen after he developed
a "cold," and now he doesn't get relief from his albuterol inhaler.
Explain the changes in physiologic function underlying his signs and symptoms. -
Answer Recruitment of inflammatory cells from the bloodstream into the
bronchial wall, where they directly attack the invading organisms and secrete
inflammatory chemicals that are toxic to the organisms causes airway
inflammation. Swelling of the bronchial wall, mucus secretion, constriction of the
airway; bronchial hyper-responsiveness to stimuli causes airway obstruction or
narrowing. They may discuss on a cellular level as well:
Upon a trigger, the cascade of neutrophils, eosinophils, lymphocytes, and mast
cells cause epithelial injury. This causes airway inflammation, which further
increases hyperresponsiveness and decreased airflow. Mast cells release histamine
and leukotrienes. These cause major bronchoconstriction, inflammation, and
mucus secretion. Mast cells can trigger multiple cytokine release, which causes
more airway inflammation. The contraction of the airways and subsequent swelling
leads to further airway obstruction.