1
NR224 Week 7 Oxygenation and
Nursing Skill Questions and
Answers (100% Correct Answers)
Already Graded A+
Which information does a pulse oximeter measure? Ans:
© 2026 Assignment
Saturation of hemoglobin with oxygen
Guru01 - Stuvia
What percentage of the air we breathe is oxygen? Ans: 21%
Expert
Which muscle group is primarily responsible for the inflation
of the lungs? Ans: Diaphragm
When gas exchange is impaired, both the lungs and heart can
(compensate/worsen) for a limited time by altering the
respiratory rate, heart rate, or both, allowing the body to
return to (disequilibrium/homeostasis.) When compensatory
mechanisms fail, the result may lead to tissue and organ
(damage/hypertrophy) or death. Ans: - compensate
- homeostasis
- damage
For each underlying pathophysiologic change, specify if the
change is associated with hypoxia or hypoxemia.
- Hypoventilation
- Oxygen is not reaching the alveoli
, 2
- Not enough functional red blood cells
- Diffusion impairment
- Blood is not reaching the tissues
- Cyanide poisoning Ans: Hypoxia
- Not enough functional red blood cells
© 2026 Assignment
- Blood is not reaching the tissues
Guru01 - Stuvia
- Cyanide poisoning
Expert
Hypoxemia
- Hypoventilation
- Oxygen is not reaching the alveoli
- Diffusion impairment
Match each device with name and then identify the piece of
gas exchange it measures:
Device Name:
- Spirometry
- Oximeter
- Lab Testing
, 3
- Chest X-Ray
Gas Exchange Measured:
- Ventilation
- Hypoxemia Ans: Spirometry: Ventilation
Oximeter: Hypoxemia
© 2026 Assignment
Lab Testing: Hypoxemia
Guru01 - Stuvia
Chest X-Ray: Ventilation
Expert
Match each device with its name and then identify the piece of
gas exchange it measures.
Type of Test:
Echocardiogram - Angina, Dysfunctional valves, VQ mismatch
Lab Testing - Myocarditis, Myocardial infarction, VQ mismatch
Electrocardiogram - Aortic aneurysm, Decreased blood flow,
Dysrhythmia
Cardiac Catheterization - Decreased blood flow, Altered
cardiac output; Infarction/Ischemia, Myocarditis Ans: -
Echocardiogram: Dysfunctional Valves
- Lab Testing: Myocardial infarction
- Electrocardiogram: Dysrhythmia
, 4
- Cardiac Catheterization: Altered cardiac output;
Infarction/Ischemia
For each sign or symptom listed, specify the prioritized device
for assistance: ventilation device, oxygen, or inhaled
medication.
- Ventilation Device
- Oxygen
© 2026 Assignment
- Inhaled Medication
Guru01 - Stuvia
Expert
SIGN/SYMPTOM
Oxygen saturation 78%
Cannot take a deep breath
Asthmatic wheezing
Stopped breathing Ans: Ventilation Device: Cannot take a
deep breath, Stopped breathing
Oxygen: Oxygen saturation 78%
Inhaled Medication: Asthmatic wheezing
Situation: An older adult arrives at the emergency department
(ED) with a productive cough, fatigue, and shortness of breath
that has worsened over the last three days.
NR224 Week 7 Oxygenation and
Nursing Skill Questions and
Answers (100% Correct Answers)
Already Graded A+
Which information does a pulse oximeter measure? Ans:
© 2026 Assignment
Saturation of hemoglobin with oxygen
Guru01 - Stuvia
What percentage of the air we breathe is oxygen? Ans: 21%
Expert
Which muscle group is primarily responsible for the inflation
of the lungs? Ans: Diaphragm
When gas exchange is impaired, both the lungs and heart can
(compensate/worsen) for a limited time by altering the
respiratory rate, heart rate, or both, allowing the body to
return to (disequilibrium/homeostasis.) When compensatory
mechanisms fail, the result may lead to tissue and organ
(damage/hypertrophy) or death. Ans: - compensate
- homeostasis
- damage
For each underlying pathophysiologic change, specify if the
change is associated with hypoxia or hypoxemia.
- Hypoventilation
- Oxygen is not reaching the alveoli
, 2
- Not enough functional red blood cells
- Diffusion impairment
- Blood is not reaching the tissues
- Cyanide poisoning Ans: Hypoxia
- Not enough functional red blood cells
© 2026 Assignment
- Blood is not reaching the tissues
Guru01 - Stuvia
- Cyanide poisoning
Expert
Hypoxemia
- Hypoventilation
- Oxygen is not reaching the alveoli
- Diffusion impairment
Match each device with name and then identify the piece of
gas exchange it measures:
Device Name:
- Spirometry
- Oximeter
- Lab Testing
, 3
- Chest X-Ray
Gas Exchange Measured:
- Ventilation
- Hypoxemia Ans: Spirometry: Ventilation
Oximeter: Hypoxemia
© 2026 Assignment
Lab Testing: Hypoxemia
Guru01 - Stuvia
Chest X-Ray: Ventilation
Expert
Match each device with its name and then identify the piece of
gas exchange it measures.
Type of Test:
Echocardiogram - Angina, Dysfunctional valves, VQ mismatch
Lab Testing - Myocarditis, Myocardial infarction, VQ mismatch
Electrocardiogram - Aortic aneurysm, Decreased blood flow,
Dysrhythmia
Cardiac Catheterization - Decreased blood flow, Altered
cardiac output; Infarction/Ischemia, Myocarditis Ans: -
Echocardiogram: Dysfunctional Valves
- Lab Testing: Myocardial infarction
- Electrocardiogram: Dysrhythmia
, 4
- Cardiac Catheterization: Altered cardiac output;
Infarction/Ischemia
For each sign or symptom listed, specify the prioritized device
for assistance: ventilation device, oxygen, or inhaled
medication.
- Ventilation Device
- Oxygen
© 2026 Assignment
- Inhaled Medication
Guru01 - Stuvia
Expert
SIGN/SYMPTOM
Oxygen saturation 78%
Cannot take a deep breath
Asthmatic wheezing
Stopped breathing Ans: Ventilation Device: Cannot take a
deep breath, Stopped breathing
Oxygen: Oxygen saturation 78%
Inhaled Medication: Asthmatic wheezing
Situation: An older adult arrives at the emergency department
(ED) with a productive cough, fatigue, and shortness of breath
that has worsened over the last three days.
