Chapter 13: Respiratory System Disorders Flashcards
(103 cards)
- What happens in the lungs when the diaphragm and external intercostal muscles relax?
a. Air is forced out of the lungs.
b. Lung volume increases.
c. Intrapulmonic pressure decreases.
d. Intrapleural pressure decreases.
a. Air is forced out of the lungs.
- The respiratory mucosa is continuous through the:
- upper and lower respiratory tracts.
- nasal cavities and the sinuses.
- nasopharynx and oropharynx.
- middle ear cavity and auditory tube.
a. 1 only
b. 1, 2
c. 2, 3
d. 1, 3, 4
e. 1, 2, 3, 4
e. 1, 2, 3, 4
- Which of the following activities does NOT require muscle contractions and energy?
a. Quiet inspiration
b. Forced
inspiration
c. Quiet expiration
d. Forced expiration
c. Quiet expiration
- The maximum volume of air a person can exhale after a maximum inspiration is termed the:
a. expiratory reserve volume.
b. inspiratory reserve volume.
c. total lung capacity.
d. vital capacity.
d. vital capacity.
- Which of the following applies to the blood in the pulmonary artery?
a. PCO2 is low.
b. PO2 is low.
c. Hydrostatic pressure is very
high.
d. It is flowing into the left atrium.
b. PO2 is low.
- Which of the following causes bronchodilation?
a. Epinephrine
b. Histamine
c. Parasympathetic nervous system
d. Drugs that block
a. Epinephrine
- The central chemoreceptors in the medulla are normally most sensitive to:
a. low oxygen level.
b. low concentration of hydrogen
ions.
c. elevated oxygen level.
d. elevated carbon dioxide level.
d. elevated carbon dioxide level.
- Oxygen diffuses from the alveoli to the blood because:
a. PO2 is higher in the blood.
b. PO2 is lower in the blood.
c. CO2 is diffusing out of the blood.
d. more CO2 is diffusing out of cells into the
blood.
b. PO2 is lower in the blood.
- Carbon dioxide is primarily transported in the blood:
a. as dissolved gas.
b. attached to the iron molecule in
hemoglobin.
c. as bicarbonate ion.
d. as carbonic acid.
c. as bicarbonate ion.
- What would hypercapnia cause?
a. Increased serum pH
b. Decreased respirations
c. Respiratory acidosis
d. Decreased carbonic acid in the blood
c. Respiratory acidosis
- Which of the following would result from hyperventilation?
a. Respiratory acidosis
b. Respiratory
alkalosis
c. Metabolic alkalosis
b. Respiratory
alkalosis
- Which of the following values is always decreased with respiratory alkalosis (compensated or
decompensated) ?
a. Serum bicarbonate
b. PaCO2
c. Serum pH
d. Urine pH
b. PaCO2
- What would be the most effective compensation for respiratory acidosis?
a. The kidneys eliminating more bicarbonate
ions
b. The kidneys producing more bicarbonate ions
c. The kidneys reabsorbing more hydrogen ions
d. An increase in respiratory rate
b. The kidneys producing more bicarbonate ions
14. What is the acid-base status of a patient with the following values for arterial blood gases? serum bicarbonate 36.5 mmol/L (normal range: 22-28) PCO2 75 mm Hg (normal range: 35-45) serum pH 7.0 a. Compensated metabolic acidosis b. Decompensated metabolic acidosis c. Compensated respiratory acidosis d. Decompensated respiratory acidosis
d. Decompensated respiratory acidosis
- What does carbaminohemoglobin refer to?
a. Replacement of oxygen by carbon monoxide on hemoglobin molecules
Test Bank - Gould’s Pathophysiology for the Health Professions (6th Edition by Hubert) 144
b. Full saturation of all heme molecules by oxygen
c. Carbon dioxide attached to an amino group on the hemoglobin
molecule
d. Oxygen combined with iron in the hemoglobin molecule
c. Carbon dioxide attached to an amino group on the hemoglobin
molecule
- Approximately what percentage of bound oxygen is released to the cells for metabolism during an
erythrocyte’s journey through the circulatory system?
a. 80%
b. 25%
c. 10%
d. 50%
b. 25%
- The production of yellowish-green, cloudy, thick sputum is often an indication of:
a. bacterial infection.
b. cancer tumor.
c. damage of lung tissue due to
smoking.
d. emphysema.
a. bacterial infection.
- What does the term hemoptysis refer to?
a. Thick, dark red sputum associated with pneumococcal
infection
b. Reddish-brown granular blood found in vomitus
c. Bright red streaks of blood in frothy sputum
d. Bloody exudate in the pleural cavity
c. Bright red streaks of blood in frothy sputum
- Orthopnea is:
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a. very deep, rapid respirations.
b. difficulty breathing when lying down.
c. waking up suddenly, coughing, and struggling for
breath.
d. noisy breathing with stridor or rhonchi.
b. difficulty breathing when lying down.
- Light bubbly or crackling breathing sounds associated with serous secretions are called:
a. rhonchi.
b. stridor.
c. rales.
d. wheezing.
c. rales.
- Choose the correct information applying to laryngotracheobronchitis:
a. Viral infection in infant under 12 months
b. Viral infection in child, 3 months to 3 years
c. Bacterial infection in infant under 6
months
d. Bacterial infection in child, 3 to 7 years
b. Viral infection in child, 3 months to 3 years
- Signs and symptoms of acute sinusitis usually include:
a. serous nasal discharge and chronic cough.
b. copious frothy sputum and dyspnea.
c. severe localized pain in the facial bone and tenderness in the
face.
d. fetid breath and sore throat.
c. severe localized pain in the facial bone and tenderness in the
face
- What are early signs and symptoms of infectious rhinitis?
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a. Purulent nasal discharge and periorbital pain
b. Serous nasal discharge, congestion, and sneezing
c. Copious purulent sputum, particularly in the
morning
d. Harsh barking cough and wheezing
b. Serous nasal discharge, congestion, and sneezing
- Why does the influenza virus cause recurrent infection in individuals?
a. Elderly patients are predisposed to secondary
infections.
b. The virus is transmitted by numerous routes.
c. The virus is very difficult to destroy.
d. Viral mutation reduces immunity from prior infections.
d. Viral mutation reduces immunity from prior infections