A nurse is caring for a client who has developed cor pulmonale secondary to an acute exacerbation of chronic obstructive pulmonary disease (COPD). Which of the following manifestations is caused by corpulmonale?
Barrel chest
Clubbing of the fingers
Destruction of the alveoli
Peripheral edema
The Correct Answer is D
A. Barrel chest is a physical finding commonly associated with COPD due to hyperinflation of the lungs. It results from chronic air trapping and enlargement of the chest. While barrel chest is not directly caused by cor pulmonale, it is a characteristic feature of advanced COPD.
B. Clubbing of the fingers is not directly caused by cor pulmonale. It is typically associated with chronic hypoxia, which can occur in advanced lung diseases like COPD. Clubbing involves changes in the shape and texture of the nails and fingertips due to chronic lack of oxygen in the blood.
C. Destruction of the alveoli is a hallmark of emphysema, which is a type of COPD. Emphysema leads to loss of lung tissue elasticity and surface area, contributing to chronic airflow limitation. While emphysema is a risk factor for developing cor pulmonale, destruction of alveoli itself does not directly cause cor pulmonale.
D. Peripheral edema is a manifestation caused by cor pulmonale. When the right side of the heart fails (cor pulmonale), it leads to increased pressure in the pulmonary circulation, which can eventually cause fluid to leak out into the tissues, resulting in peripheral edema. This is a consequence of the right heart's inability to effectively pump blood forward due to pulmonary hypertension and subsequent right ventricular failure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Most individuals with Bell's palsy experience gradual improvement within weeks to months, and the majority recover completely. Permanent facial paralysis is rare, but some individuals may have residual mild weakness or asymmetry.
B. This statement is not typically true for Bell's palsy. Antibiotic eye drops are not routinely prescribed unless there is evidence of corneal exposure due to incomplete eyelid closure (lagophthalmos). Instead, artificial tears and lubricating ointments are often recommended to prevent dryness and protect the cornea.
C. In Bell's palsy, weakness or paralysis of the facial muscles can lead to inability to fully close the eyelid on the affected side. Taping the eyelid closed at night helps prevent corneal damage from exposure and dryness.
D. This statement is not recommended. It is important to avoid stressing the affected facial muscles excessively during recovery from Bell's palsy. Chewing evenly on both sides of the mouth is generally recommended to prevent strain and promote balanced muscle function.
Correct Answer is B
Explanation
A. Atrial flutter typically presents with a regular atrial rate (usually around 250-350 beats per minute) and a characteristic "sawtooth" pattern of flutter waves (F-waves) on the ECG. This condition would not present with irregular ventricular rates and is less likely based on the ECG findings described.
B. Atrial fibrillation is identified by an irregularly irregular rhythm and the absence of P-waves on the ECG, which is replaced by erratic activity.
C. Unstable angina presents with chest pain or discomfort due to reduced blood flow to the heart muscles, usually related to atherosclerotic plaque rupture or erosion. It does not cause the ECG findings described (absence of P-waves and irregular ventricular rate).
D. PACs are early atrial depolarizations that can cause palpitations but do not typically result in the absence of P-waves or irregular ventricular rates as described in the scenario.
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