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HCC 4 Exam 3 Questions And Answers
|Latest 2025 | Guaranteed Pass.
During your assessment of a patient with suspected acute respiratory distress syndrome (ARDs)
which of the following findings is most likely to be seen? - Answer✔Decreased PaO2
Impaired gas exchange will cause a decrease in arterial oxygen levels in the blood, despite
increasing oxygen concentrations used kn O2 therapy
Dyspnea
Changes in the lungs that interfere with gas exchange will cause patients with ARDs to become
dyspneic. Difficulty breathing and the feeling of not getting enough air will lead to tachypnea,
and eventually, respiratory alkalosis
Atelectasis
Damage to alveolar cells causes decreased production of surfactant, the substance that
functions to help keep alveoli open. This, in addition to accumulation of fluid in the alveoli,
contribute to atelectasis
Diffuse Pulmonary Infiltrates
1
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 2:49PM A+
An X-ray of healthy, air filled lungs will appear black. However with ARDs, an X-ray of the
patients chest will reveal lungs that appear white, due to widespread infiltrates and minimal air
spaces. It is often referred to as whiteout or white lung
Pulmonary Hypertension
The inflammatory process involved in ARDs will eventually cause destruction of the pulmonary
vasculature and decreased lung compliance. As this occurs, pulmonary hypertension may result.
Pulmonary hypertension is considered a late sign of decreased lung compliance
Refractory hypoxemia
In patients with ARDs, the lungs are being adequately perfumes, but gas exchange is disrupted
due to atelectasis and fluid in the alveoli. The result is a V/Q mismatch and an intrapulmonary
shunt, which lead to hypoxemia. Hypoxemia in this situation is refractory to O2 therapy
Restlessness
Patients who are not getting enough oxygen will become restless, anxious, and diaphoretic. The
body will attempt to compensate for the lack of oxygen by increasing heart rate, causing ARDs
patients to become tachycardic
Which of the following mechanisms is the most likely cause of ARDs? - Answer✔Damaged
Alveolar-Capillary Membrane
alveolar ventilation - Answer✔the exchange of gases via the alveoli, often quantified as the
volume of air breathed in per minute that reaches the alveoli and takes part in gas exchange
alveolus - Answer✔a small, air-containing saclike dilation (outpouching) in the lungs where gas
exchange takes place with the pulmonary capillary blood (plural: alveoli)
autologous - Answer✔originating within an organism itself; applied to blood transfusion,
referring to the person's own blood
2
HCC 4 Exam 3 Questions And Answers
|Latest 2025 | Guaranteed Pass.
During your assessment of a patient with suspected acute respiratory distress syndrome (ARDs)
which of the following findings is most likely to be seen? - Answer✔Decreased PaO2
Impaired gas exchange will cause a decrease in arterial oxygen levels in the blood, despite
increasing oxygen concentrations used kn O2 therapy
Dyspnea
Changes in the lungs that interfere with gas exchange will cause patients with ARDs to become
dyspneic. Difficulty breathing and the feeling of not getting enough air will lead to tachypnea,
and eventually, respiratory alkalosis
Atelectasis
Damage to alveolar cells causes decreased production of surfactant, the substance that
functions to help keep alveoli open. This, in addition to accumulation of fluid in the alveoli,
contribute to atelectasis
Diffuse Pulmonary Infiltrates
1
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 2:49PM A+
An X-ray of healthy, air filled lungs will appear black. However with ARDs, an X-ray of the
patients chest will reveal lungs that appear white, due to widespread infiltrates and minimal air
spaces. It is often referred to as whiteout or white lung
Pulmonary Hypertension
The inflammatory process involved in ARDs will eventually cause destruction of the pulmonary
vasculature and decreased lung compliance. As this occurs, pulmonary hypertension may result.
Pulmonary hypertension is considered a late sign of decreased lung compliance
Refractory hypoxemia
In patients with ARDs, the lungs are being adequately perfumes, but gas exchange is disrupted
due to atelectasis and fluid in the alveoli. The result is a V/Q mismatch and an intrapulmonary
shunt, which lead to hypoxemia. Hypoxemia in this situation is refractory to O2 therapy
Restlessness
Patients who are not getting enough oxygen will become restless, anxious, and diaphoretic. The
body will attempt to compensate for the lack of oxygen by increasing heart rate, causing ARDs
patients to become tachycardic
Which of the following mechanisms is the most likely cause of ARDs? - Answer✔Damaged
Alveolar-Capillary Membrane
alveolar ventilation - Answer✔the exchange of gases via the alveoli, often quantified as the
volume of air breathed in per minute that reaches the alveoli and takes part in gas exchange
alveolus - Answer✔a small, air-containing saclike dilation (outpouching) in the lungs where gas
exchange takes place with the pulmonary capillary blood (plural: alveoli)
autologous - Answer✔originating within an organism itself; applied to blood transfusion,
referring to the person's own blood
2
