NSG300 / NSG 300 Exam 3
Foundations of Nursing - GCU
Actual Questions and Answers
100% Guarantee Pass
,This Exam contains:
100% Guarantee Pass.
Each Question Includes The Correct Answer
Foundations of Nursing at Grand Canyon University
What are the main structures involved in respiratory physiology
Correct Answer:
The primary structures include the airways, lungs, diaphragm, and alveoli.
, How does the work of breathing differ between inspiration and expiration
Correct Answer:
Inspiration is an active process requiring muscular effort, whereas expiration is typically passive unless it
becomes labored, in which case muscle activity is also required.
What are the key lung volumes
Correct Answer:
The essential lung volumes are tidal volume, residual volume, and forced vital capacity.
Describe the pulmonary circulation process.
Pulmonary circulation transports deoxygenated blood from the right ventricle to the alveoli for gas
exchange and subsequently returns oxygenated blood to the left atrium.
How does respiratory gas exchange occur
Correct Answer:
Respiratory gas exchange occurs via diffusion at the alveolar-capillary membrane and is influenced by
factors such as surface area, membrane thickness, and the partial pressure gradients of respiratory gases.
What percentage of oxygen is transported bound to hemoglobin and dissolved in plasma
Correct Answer:
Approximately 97% of oxygen is transported bound to hemoglobin (SaO₂), while 3% is transported
dissolved in plasma (PaO₂).
What factors are required for effective oxygen transport
Correct Answer:
Effective oxygen transport requires adequate hemoglobin concentrations and sufficient cardiac output.
How is carbon dioxide primarily transported in the body
Correct Answer:
Most carbon dioxide is transported in the form of bicarbonate; smaller amounts are dissolved in plasma or
bound to hemoglobin.
Foundations of Nursing - GCU
Actual Questions and Answers
100% Guarantee Pass
,This Exam contains:
100% Guarantee Pass.
Each Question Includes The Correct Answer
Foundations of Nursing at Grand Canyon University
What are the main structures involved in respiratory physiology
Correct Answer:
The primary structures include the airways, lungs, diaphragm, and alveoli.
, How does the work of breathing differ between inspiration and expiration
Correct Answer:
Inspiration is an active process requiring muscular effort, whereas expiration is typically passive unless it
becomes labored, in which case muscle activity is also required.
What are the key lung volumes
Correct Answer:
The essential lung volumes are tidal volume, residual volume, and forced vital capacity.
Describe the pulmonary circulation process.
Pulmonary circulation transports deoxygenated blood from the right ventricle to the alveoli for gas
exchange and subsequently returns oxygenated blood to the left atrium.
How does respiratory gas exchange occur
Correct Answer:
Respiratory gas exchange occurs via diffusion at the alveolar-capillary membrane and is influenced by
factors such as surface area, membrane thickness, and the partial pressure gradients of respiratory gases.
What percentage of oxygen is transported bound to hemoglobin and dissolved in plasma
Correct Answer:
Approximately 97% of oxygen is transported bound to hemoglobin (SaO₂), while 3% is transported
dissolved in plasma (PaO₂).
What factors are required for effective oxygen transport
Correct Answer:
Effective oxygen transport requires adequate hemoglobin concentrations and sufficient cardiac output.
How is carbon dioxide primarily transported in the body
Correct Answer:
Most carbon dioxide is transported in the form of bicarbonate; smaller amounts are dissolved in plasma or
bound to hemoglobin.
