The nurse is reviewing lab work for a client whose blood CO2 level is elevated. The nurse is most correct to suspect an impairment of which?

Alveoli

The pulmonary artery

The pulmonary vein

Bronchi

Answer and Explanation

The Correct Answer is A

A. Alveoli: The alveoli are responsible for gas exchange, including the removal of CO₂. Impaired alveolar function leads to CO₂ retention and respiratory acidosis, commonly seen in conditions like COPD or pneumonia.
B. The pulmonary artery: The pulmonary artery carries deoxygenated blood to the lungs but does not directly participate in gas exchange. Impairment here affects perfusion, not CO₂ elimination.
C. The pulmonary vein: The pulmonary vein returns oxygenated blood to the heart and is not involved in gas exchange. Elevated CO₂ is not typically linked to vein function.
D. Bronchi: The bronchi conduct air but do not facilitate gas exchange. While obstruction can contribute to CO₂ retention, the alveoli are primarily responsible for its removal.

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Correct Answer is A

Explanation

A. Maintain activity restriction to bedrest: Bedrest reduces the heart's workload by minimizing physical exertion, thereby decreasing myocardial oxygen demand. This is crucial in cardiogenic shock, where the heart's pumping ability is severely compromised.
B. Limit interaction with visitors: While excessive stimulation can be stressful, limiting social interaction has a minimal impact on myocardial oxygen consumption compared to physical activity. Emotional support from visitors can actually benefit the client’s overall well-being.
C. Avoid heavy meals: Heavy meals may cause postprandial increases in metabolic demand, but they are not as directly impactful on cardiac workload as restricting physical activity. Meal composition should still be considered, but it's not the most immediate priority.
D. Arrange personal care supplies nearby: Placing supplies within reach helps minimize exertion during ADLs, but this is a supportive measure. Complete activity restriction is a more direct and effective intervention to reduce cardiac oxygen demand in the acute phase.

A. Pasta B. Coffee C. Peanut butter D. Angel food cake

Correct Answer is C

Explanation

A. Pasta: While pasta may contain small amounts of potassium, it is not considered a significant source. It is primarily a carbohydrate and not beneficial for potassium replacement in clients on diuretics like furosemide.
B. Coffee: Coffee contains minimal potassium and may have diuretic properties of its own, which could further contribute to fluid and electrolyte loss. It is not an appropriate choice for potassium supplementation.
C. Peanut butter: Peanut butter is a good dietary source of potassium. Including potassium-rich foods like peanut butter helps prevent hypokalemia, a common side effect of furosemide due to increased urinary potassium excretion.
D. Angel food cake: Angel food cake is low in potassium and mainly composed of sugar and egg whites. It does not offer nutritional value for managing electrolyte balance in clients taking loop diuretics.

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The nurse is reviewing lab work for a client whose blood CO2 level is elevated. The nurse is most correct to suspect an impairment of which?

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Naxlex Comprehensive Predictor Exams

The nurse is planning care for a client diagnosed with cardiogenic shock. Which nursing intervention is most helpful to decrease myocardial oxygen consumption?

Correct Answer is A

Explanation

A client is taking furosemide for the treatment of heart failure. What food should the nurse suggest that is rich in potassium?

Correct Answer is C

Explanation

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