NSG300 / NSG 300 Exam 3
Foundations of Nursing - GCU
Actual Questions and Answers
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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.
What regulates ventilation in the body
Correct Answer:
Ventilation is principally regulated by the medulla oblongata and pons,
which respond primarily to changes in arterial carbon dioxide (PaCO₂), and
secondarily to oxygen (PaO₂) and pH levels.
What is the role of the myocardial pump
Correct Answer:
The myocardial pump refers to the function of the left and right ventricles in
propelling blood to the systemic and pulmonary circulations.
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.
What regulates ventilation in the body
Correct Answer:
Ventilation is principally regulated by the medulla oblongata and pons,
which respond primarily to changes in arterial carbon dioxide (PaCO₂), and
secondarily to oxygen (PaO₂) and pH levels.
What is the role of the myocardial pump
Correct Answer:
The myocardial pump refers to the function of the left and right ventricles in
propelling blood to the systemic and pulmonary circulations.
