Page | 1
NUR 355 EXAM 3 2026 QUESTIONS
AND ANSWERS | A+ GRADED | WITH
EXPERT SOLUTIONS
purpose of respiratory system - correct answer -Transport of
oxygen from air to blood
Removal of carbon dioxide from the blood-waste product from
metabolism.
Upper respiratory tract-Resident flora
Lower respiratory tract-Sterile
Pulmonary edema - correct answer -Fluid collecting in alveoli and
interstitial area-
Can result from many primary conditions
Reduces amount of oxygen diffusing into blood
Interferes with lung expansion
May develop when-
Inflammation in lungs is present.
Increases permeability of capillaries
Plasma protein levels are low.
Decreases osmotic pressure of plasma
Pulmonary hypertension develops
, Page | 2
Signs and symptoms of pulmonary edema - correct answer -Mild
pulmonary edema-
Cough
Orthopnea
Rales
With increased congestion-
hemoptysis often occurs
Pink, frothy sputum
breathing becomes labored; feels like "drowning"
hypoxemia worsens
cyanosis develops in the advanced stage
pulmonary embolus - correct answer -Blood clot or mass that
obstructs pulmonary artery or any of its branches
Effect of embolus depends on material, size, and location.
Small pulmonary emboli might be "silent" unless they involve a
large area of lung.
Large emboli may cause sudden death.
90% of pulmonary emboli originate from deep vein thromboses in
legs and are preventable.
, Page | 3
signs and symptoms of pulmonary embolus - correct answer -
Small emboli-
Transient chest pain
Cough
Dyspnea may occur
Larger emboli-
Chest pain
Tachypnea
Dyspnea develops suddenly.
Later, hemoptysis and fever are present.
Hypoxia stimulates a sympathetic response, with anxiety and
restlessness, pallor, and tachycardia.
massive- Severe crushing chest pain
Low blood pressure
Rapid weak pulse
Loss of consciousness
treatment of pulmonary embolism PE - correct answer -
Assessment of risk factors
Surgically Inserted filter into vena cava (some cases)
Heparin or streptokinase
Mechanical ventilation
, Page | 4
Embolectomy
Lung expansion disorders - correct answer -Atelectasis
Pleural effusion
Pneumothorax
Flail chest
Infant respiratory distress syndrome
Acute respiratory failure
Atelectasis - correct answer -Nonaeration or collapse of lung or
part of a lung (incensive spirometer)
Leads to decreased gas exchange and hypoxia
Alveoli become airless.
Collapse and inflammation or atrophy occur.
Process interferes with blood flow through the lung.
Both ventilation and perfusion are altered.
Affects oxygen diffusion
mechanisms that cause atelactasis - correct answer -Obstructive
atelectasis-
Caused by total obstruction of airway - tumor or mucous
NUR 355 EXAM 3 2026 QUESTIONS
AND ANSWERS | A+ GRADED | WITH
EXPERT SOLUTIONS
purpose of respiratory system - correct answer -Transport of
oxygen from air to blood
Removal of carbon dioxide from the blood-waste product from
metabolism.
Upper respiratory tract-Resident flora
Lower respiratory tract-Sterile
Pulmonary edema - correct answer -Fluid collecting in alveoli and
interstitial area-
Can result from many primary conditions
Reduces amount of oxygen diffusing into blood
Interferes with lung expansion
May develop when-
Inflammation in lungs is present.
Increases permeability of capillaries
Plasma protein levels are low.
Decreases osmotic pressure of plasma
Pulmonary hypertension develops
, Page | 2
Signs and symptoms of pulmonary edema - correct answer -Mild
pulmonary edema-
Cough
Orthopnea
Rales
With increased congestion-
hemoptysis often occurs
Pink, frothy sputum
breathing becomes labored; feels like "drowning"
hypoxemia worsens
cyanosis develops in the advanced stage
pulmonary embolus - correct answer -Blood clot or mass that
obstructs pulmonary artery or any of its branches
Effect of embolus depends on material, size, and location.
Small pulmonary emboli might be "silent" unless they involve a
large area of lung.
Large emboli may cause sudden death.
90% of pulmonary emboli originate from deep vein thromboses in
legs and are preventable.
, Page | 3
signs and symptoms of pulmonary embolus - correct answer -
Small emboli-
Transient chest pain
Cough
Dyspnea may occur
Larger emboli-
Chest pain
Tachypnea
Dyspnea develops suddenly.
Later, hemoptysis and fever are present.
Hypoxia stimulates a sympathetic response, with anxiety and
restlessness, pallor, and tachycardia.
massive- Severe crushing chest pain
Low blood pressure
Rapid weak pulse
Loss of consciousness
treatment of pulmonary embolism PE - correct answer -
Assessment of risk factors
Surgically Inserted filter into vena cava (some cases)
Heparin or streptokinase
Mechanical ventilation
, Page | 4
Embolectomy
Lung expansion disorders - correct answer -Atelectasis
Pleural effusion
Pneumothorax
Flail chest
Infant respiratory distress syndrome
Acute respiratory failure
Atelectasis - correct answer -Nonaeration or collapse of lung or
part of a lung (incensive spirometer)
Leads to decreased gas exchange and hypoxia
Alveoli become airless.
Collapse and inflammation or atrophy occur.
Process interferes with blood flow through the lung.
Both ventilation and perfusion are altered.
Affects oxygen diffusion
mechanisms that cause atelactasis - correct answer -Obstructive
atelectasis-
Caused by total obstruction of airway - tumor or mucous
