Nursing-111: Gas Exchange, Oxygenation Practice Exam Questions And Correct Answers.
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Course
Gas exchange and oxygenation
Institution
Gas Exchange And Oxygenation
Hypoxemia by definition is... - Answer Low partial pressure of oxygen in arterial blood (low oxygen level), which may lead to hypoxia
Hypoxia by definition is... - Answer Shortage of oxygen in the body's tissue and cells
Anoxia by definition is... - Answer The absence of oxygen, i.e....
Nursing-111: Gas Exchange,
Oxygenation Practice Exam Questions
And Correct Answers.
Hypoxemia by definition is... - Answer Low partial pressure of oxygen in arterial blood (low oxygen
level), which may lead to hypoxia
Hypoxia by definition is... - Answer Shortage of oxygen in the body's tissue and cells
Anoxia by definition is... - Answer The absence of oxygen, i.e. anoxic brain injury
Dyspnea by definition is... - Answer Difficulty breathing, shortness of breath, labored breathing
Oxygenation involves what three processes? - Answer 1) The exchange of respiratory gases occurs
between the environment and the blood
2) The airways transfer oxygen from the atmosphere to the alveoli where there is an exchange for carbon
dioxide
3) Through the alveolar capillary membrane O2 transfers to the blood provides oxygenation and
perfusion to the body
Oxygenation is based on what factors? - Answer 1) Ventilation
2) Perfusion
3) Diffusion
Ventilation is what type of body process? - Answer Mechanical
Ventilation is what kind of process and requires what kind of activity to be performed? - Answer
Ventilation is the process of moving gases into and out of the lungs
Requires musculature activity
, What major nerve and muscle participate in successful ventilation? What do they do? - Answer 1) The
phrenic nerve, located in the spinal cord (C4)-it innervates the diaphragm
2) The diaphragm is the major muscle of respiration, helps a person breath in and out appropriately
What are some factors that would affect the patient's ability to ventilate? - Answer 1) Chest trauma
2) Obstructed airways
3) Spinal cord injuries (like from C4-C5)
What are some of the BIGGEST factors relating to a patient's ability to properly ventilate? - Answer 1)
Ineffective cardiovascular system
2) Ineffective gas exchange
What system provides transport mechanisms to distribute the oxygen to cells and tissues of the body? -
Answer The cardiovascular system is responsible for this function
Perfusion is what? - Answer Relates to the ability of the cardiovascular system to pump oxygenated
blood to the tissues and return deoxygenated blood to the lungs
What factors will affect perfusion? - Answer 1) Cardiovascular diseases
2) Heart failure
3) Shock
4) Loss of blood volume
Diffusion is what? - Answer Diffusion is the movement of gases from one area to another based on
concentration gradient
What are some factors that will negatively affect diffusion? - Answer 1) Pulmonary embolus
Is inspiration or breathing in an active or passive process? - Answer Inspiration is an active process
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