Which disorder would the nurse recognize as the likely cause of right heart failure (cor pulmonale)?
Upper GI bleeding
Chronic obstructive pulmonary disease (COPD)
Liver failure
Renal failure
The Correct Answer is B
Choice A reason: Upper GI bleeding is not a direct cause of right heart failure (cor pulmonale). While severe GI bleeding can lead to other complications such as anemia or shock, it does not typically result in cor pulmonale.
Choice B reason: Chronic obstructive pulmonary disease (COPD) is a primary cause of cor pulmonale. COPD leads to chronic hypoxia, which increases pressure in the pulmonary arteries (pulmonary hypertension). The right ventricle of the heart must work harder to pump blood through these high-pressure arteries, eventually leading to right heart failure.
Choice C reason: Liver failure can lead to various systemic complications such as fluid imbalance and electrolyte disturbances, but it is not a direct cause of right heart failure (cor pulmonale). Cor pulmonale is specifically related to pulmonary conditions that increase right ventricular workload.
Choice D reason: Renal failure, while serious and capable of causing cardiovascular complications due to fluid overload and hypertension, is not typically linked to the development of cor pulmonale. The primary cause of cor pulmonale is chronic lung disease like COPD, which directly affects the pulmonary vasculature.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Contacting the health care provider is the most appropriate action because a change in the Doppler sound may indicate a potential complication, such as graft occlusion or compromised blood flow. Immediate assessment and intervention by the health care provider are essential to prevent further complications and ensure the patient's safety.
Choice B reason: Rechecking the pulse in another 30 minutes is not advisable in this situation because it could delay necessary medical intervention. Prompt communication with the health care provider is crucial to address the underlying issue and provide timely care.
Choice C reason: Measuring the ankle-brachial index can provide valuable information about blood flow in the lower extremities, but it is not the immediate priority when a significant change in the Doppler sound is detected. Contacting the health care provider for further assessment and instructions takes precedence.
Choice D reason: Administering an oral anticoagulant is not an appropriate action without the direct instruction from a health care provider. The nurse must first report the change in the Doppler sound to the provider and follow their specific orders regarding medication and treatment.
Correct Answer is C
Explanation
Choice A reason: NPH (Humulin N) is an intermediate-acting insulin that is used to control blood sugar levels throughout the day, not specifically for mealtime coverage. It is typically administered twice a day.
Choice B reason: Detemir (Levemir) is a long-acting insulin that provides basal insulin coverage. It helps maintain blood sugar levels stable over a 24-hour period and is not intended for controlling post-meal blood sugar spikes.
Choice C reason: Lispro (Humalog) is a rapid-acting insulin used for mealtime coverage. It is designed to be taken just before or immediately after a meal to control the sudden rise in blood sugar levels that occurs after eating.
Choice D reason: Glargine (Lantus) is a long-acting insulin that provides basal insulin coverage, helping to maintain steady blood glucose levels throughout the day and night. It is not used for mealtime blood sugar control.
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