A nurse is collecting data for a client who has acute respiratory distress syndrome (ARDS). Which of the following findings should the nurse expect?
Impaired carbon dioxide elimination due to shunting
Decreased pulmonary arterial pressure due to ventilation-perfusion (V/Q) mismatch
Hypoxemia due to dead space
Decreased pulmonary compliance due to stiffness
The Correct Answer is D
A. ARDS is characterized by severe hypoxemia due to shunting, but it typically impairs oxygenation rather than carbon dioxide elimination. The primary issue is the inability to oxygenate blood, not the elimination of carbon dioxide.
B. In ARDS, pulmonary arterial pressure often increases due to pulmonary hypertension caused by widespread inflammation and hypoxemia, not decreased pressure. V/Q mismatch contributes to hypoxemia but does not directly cause decreased pulmonary arterial pressure.
C. While hypoxemia is a hallmark of ARDS, it is primarily due to shunting (where blood passes through unventilated areas of the lung) rather than dead space, which is more associated with conditions like pulmonary embolism.
D. ARDS involves decreased pulmonary compliance due to the stiffness of the lungs, which results from diffuse alveolar damage and the formation of hyaline membranes. This stiffness makes it difficult for the lungs to expand, leading to reduced oxygenation and severe hypoxemia.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Bronchospasm occurs when there is inflammation, edema, and excess mucus: Bronchospasm in asthma is characterized by inflammation of the airways, edema of the airway walls, and increased mucus production, leading to constriction and obstruction of the airways.
B. Decreased mucus production contributes to airway constriction: In asthma, bronchospasm is associated with increased mucus production, not decreased. Excess mucus contributes to airway obstruction.
C. Inflammation is reduced due to airway diameter: Inflammation typically increases airway constriction rather than reducing it. The narrowed airway diameter is a result of inflammation, not a reduction in inflammation.
D. Airway obstruction occurs due to thinning mucus: Airway obstruction in asthma is due to thick, tenacious mucus, not thinning mucus. The mucus contributes to the blockage of the airways.
Correct Answer is C
Explanation
A. Dry oral mucous membranes can occur with the use of inhalers but are not a serious adverse effect of beclomethasone. It can be managed with proper hydration and is not typically a cause for concern.
B. Tremors are more commonly associated with bronchodilators, such as beta-agonists, rather than corticosteroids like beclomethasone. They are not a typical side effect of beclomethasone MDI.
C. A white coating in the mouth may indicate oral thrush, a fungal infection caused by Candida species, which is a known adverse effect of inhaled corticosteroids like beclomethasone. The client should be instructed to rinse their mouth after each use to prevent this complication and report any signs of oral thrush to the provider.
D. Nausea is not a common adverse effect of inhaled corticosteroids. It is more often associated with systemic medications rather than inhaled therapies.
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