A nurse is assessing a client who has tension pneumothorax. Which of the following findings should the nurse expect following tracheal deviation?
Respiratory alkalosis
Increased venous return
Decreased cardiac output
Dilated ventricles
The Correct Answer is C
Choice A Reason:
Respiratory alkalosis is incorrect. Tension pneumothorax typically leads to respiratory distress and hypoxemia rather than respiratory alkalosis. The respiratory alkalosis may occur initially due to hyperventilation in response to hypoxemia but would not be directly related to tracheal deviation.
Choice B Reason:
Increased venous return is incorrect. Tension pneumothorax actually leads to decreased venous return due to compression of the great vessels in the thorax, particularly the superior vena cava and the inferior vena cava. This compression results from the increased pressure within the thorax, which impedes blood flow back to the heart.
Choice C Reason:
Decreased cardiac output is incorrect. Tension pneumothorax can indeed lead to decreased cardiac output due to compression of the heart and the great vessels by the accumulating air in the pleural space. This compression decreases venous return and impairs cardiac function.
Choice D Reason:
Dilated ventricles is incorrect. As mentioned earlier, tension pneumothorax can lead to compression of the heart, including the ventricles. This compression can cause dilatation of the ventricles, particularly the right ventricle, due to increased afterload and decreased venous return.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Correct answer: D
Choice A Reason:
Decreased pulmonary vascular resistance is incorrect. Inflammatory mediators released in response to a pulmonary embolism can lead to vasoconstriction and increased pulmonary vascular resistance. This is part of the body's response to redirect blood flow away from the affected area of the lung and maintain adequate perfusion to other areas.
Choice B Reason:
Hypercapnia is incorrect. Hypercapnia refers to elevated levels of carbon dioxide (CO2) in the blood.Hypocapnia usually is present with embolism; hypercapnia, on the other hand, is rare.
Choice C Reason:
Hypoventilation is incorrect. Hypoventilation occurs when there is inadequate ventilation of the lungs relative to metabolic demands. In the context of a pulmonary embolism, hypoventilation can occur due to factors such as pain, respiratory muscle fatigue, or impaired gas exchange, all of which can be influenced by the release of inflammatory mediators.
Choice D Reason:
Respiratory alkalosis is correct.In response to the blockage and the resulting inflammation, the body often increases the respiratory rate as a compensatory mechanism to maintain adequate oxygen levels and remove carbon dioxide.Due to the increased breathing rate, there is excessive exhalation of carbon dioxide, leading to a decrease in the partial pressure of CO2 in the blood. This results in an increase in blood pH, causing respiratory alkalosis.
Correct Answer is ["B","D","E","F"]
Explanation
Choice A Reason:
Sedatives do not impact the risk of obstructive sleep apnea: This statement is incorrect. Sedatives, particularly those that cause muscle relaxation or depress the central nervous system, can exacerbate obstructive sleep apnea by further relaxing the muscles of the upper airway, leading to increased airway collapse during sleep.
Choice B Reason:
CPAP compliance enhances quality of sleep is correct. Continuous positive airway pressure (CPAP) therapy is a common treatment for obstructive sleep apnea. Compliance with CPAP therapy, meaning consistent and proper use of the CPAP device during sleep, is essential for effectively managing sleep apnea and improving sleep quality.
Choice C Reason:
Alcohol does not affect the risk of obstructive sleep apnea. This statement is incorrect. Alcohol consumption can worsen obstructive sleep apnea by promoting muscle relaxation in the upper airway, leading to increased airway collapse and more frequent episodes of apnea during sleep.
Choice D Reason:
Obesity increases the risk of obstructive sleep apnea. This statement is correct. Obesity is a significant risk factor for obstructive sleep apnea. Excess fat tissue around the neck can increase the likelihood of airway obstruction during sleep, contributing to the development or worsening of sleep apnea.
Choice E Reason:
Positional therapy enhances client comfort is correct. Positional therapy involves strategies to encourage sleeping in positions that minimize the severity of obstructive sleep apnea, particularly for individuals with positional OSA (where apnea events are primarily or significantly worse when sleeping in specific positions, such as supine). This statement is correct.
Choice F Reason:
Smoking increases the risk of obstructive sleep apnea: This statement is correct. Smoking can increase the risk of obstructive sleep apnea due to its effects on upper airway inflammation and respiratory function. Smoking cessation can be beneficial in managing sleep apnea and improving overall health.
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