A nurse is collecting data for 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
A. Respiratory alkalosis: Respiratory alkalosis is generally associated with hyperventilation and is not directly caused by tension pneumothorax. In tension pneumothorax, the primary issues are related to pressure changes within the thoracic cavity, not respiratory alkalosis.
B. Increased venous return: In tension pneumothorax, venous return is actually decreased due to the increased intrathoracic pressure compressing the great vessels, which impedes blood flow back to the heart.
C. Decreased cardiac output: Tension pneumothorax causes a significant increase in intrathoracic pressure, leading to compression of the heart and great vessels, which results in decreased venous return and ultimately decreased cardiac output. This is a critical and life-threatening consequence of tension pneumothorax.
D. Dilated ventricles: Dilated ventricles are more commonly seen in chronic heart conditions such as heart failure, rather than in acute tension pneumothorax. Tension pneumothorax typically results in reduced ventricular filling rather than dilation.
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Related Questions
Correct Answer is C
Explanation
A. Respiratory alkalosis: Respiratory alkalosis is generally associated with hyperventilation and is not directly caused by tension pneumothorax. In tension pneumothorax, the primary issues are related to pressure changes within the thoracic cavity, not respiratory alkalosis.
B. Increased venous return: In tension pneumothorax, venous return is actually decreased due to the increased intrathoracic pressure compressing the great vessels, which impedes blood flow back to the heart.
C. Decreased cardiac output: Tension pneumothorax causes a significant increase in intrathoracic pressure, leading to compression of the heart and great vessels, which results in decreased venous return and ultimately decreased cardiac output. This is a critical and life-threatening consequence of tension pneumothorax.
D. Dilated ventricles: Dilated ventricles are more commonly seen in chronic heart conditions such as heart failure, rather than in acute tension pneumothorax. Tension pneumothorax typically results in reduced ventricular filling rather than dilation.
Correct Answer is D
Explanation
A. Photophobia: Antihistamines are not typically associated with photophobia. Common side effects include dry mouth and drowsiness, but not increased sensitivity to light.
B. Increased blood pressure: Antihistamines do not commonly cause increased blood pressure. They are more likely to lead to side effects like dry mouth, drowsiness, and blurred vision rather than affecting blood pressure significantly.
C. Diarrhea: Diarrhea is not a usual side effect of antihistamines. These medications are more likely to cause constipation rather than diarrhea.
D. Dry mouth: Dry mouth is a common adverse effect of many antihistamines. This occurs due to their anticholinergic effects, which decrease saliva production and lead to dry mouth.
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