Nursing Elites

1. A healthcare professional is reviewing a patient's arterial blood gas values. Which of the following conditions apply under the following values? pH- 7.49 Bicarbonate ion 24 mEq/dl PaCO2 - 31 mmHg PaO2 - 52 mmHg FiO2 - 0.22

• A. respiratory acidosis
• B. respiratory alkalosis
• C. metabolic acidosis
• D. metabolic alkalosis

Correct answer: B

Rationale: The given blood gas values indicate respiratory alkalosis. A high pH and low PaCO2 level are consistent with respiratory alkalosis. In this scenario, no compensation for the alkalosis is noted, ruling out metabolic acidosis or alkalosis. Metabolic conditions would usually involve changes in bicarbonate levels, which remain within the normal range in this case.

2. The nurse is caring for a client admitted with Class III/IV Pulmonary Hypertension. The nurse explains to the client that Lanoxin is being administered to the client in order to:

• A. Manage peripheral edema
• B. Improve right ventricular function
• C. Increase pulmonary pressure
• D. Constrict the pulmonary vessels

Correct answer: B

Rationale: The correct answer is to improve right ventricular function. Lanoxin, also known as digoxin, is a cardiac glycoside that works by slowing the heart rate and increasing myocardial contractility, especially in the ventricles. This action helps improve the efficiency of the heart's pumping function, particularly the right ventricle in conditions like pulmonary hypertension. Choice A, managing peripheral edema, is not directly related to Lanoxin's mechanism of action. Choice C, increasing pulmonary pressure, is incorrect as Lanoxin is not used to increase pressure in the pulmonary circulation. Choice D, constricting the pulmonary vessels, is incorrect as Lanoxin does not cause vasoconstriction in the pulmonary vessels but rather acts on the heart's contractility.

3. A female client complains to the nurse at the health department that she has fatigue, shortness of breath, and lightheadedness. Her history reveals no significant medical problems. She states that she is always on a fad diet without any vitamin supplements. Which tests should the nurse expect the client to have first?

• A. peptic ulcer studies
• B. complete blood count, including hematocrit and hemoglobin
• C. genetic testing
• D. hemoglobin electrophoresis

Correct answer: B

Rationale: The correct answer is to perform a complete blood count, including hematocrit and hemoglobin, as the initial tests to assess the client's symptoms related to fatigue, shortness of breath, and lightheadedness. These symptoms can be indicative of anemia, which can be caused by nutritional deficiencies due to fad dieting without vitamin supplements. Peptic ulcer studies, genetic testing, and hemoglobin electrophoresis are not the most appropriate initial tests for the client's presenting symptoms and history. Peptic ulcer studies are not relevant to the client's symptoms. Genetic testing is not indicated based on the client's presentation and history. Hemoglobin electrophoresis is used to diagnose specific types of anemia and is not the first-line test in this scenario. Further testing decisions should be based on the results of the initial tests, the client's history, and other relevant factors.

4. Which of the following should be included in a diet rich in iron?

• A. peaches, eggs, beef
• B. cereals, kale, cheese
• C. red beans, enriched breads, squash
• D. legumes, green beans, eggs

Correct answer: A

Rationale: The correct answer is peaches, eggs, beef. These are good sources of heme iron, which is more easily absorbed by the body compared to nonheme iron. Heme iron is mainly found in animal-based foods like meat, poultry, and fish. Peaches, eggs, and beef are rich in iron and can help prevent iron deficiency anemia. Choices B, C, and D are incorrect because they do not include significant sources of heme iron. Cereals, kale, cheese, red beans, enriched breads, squash, legumes, and green beans are sources of nonheme iron, which is not as efficiently absorbed by the body as heme iron. It is important to include heme iron sources in the diet for optimal iron absorption.

5. High uric acid levels can develop in clients who are receiving chemotherapy. This can be caused by

• A. the kidneys' inability to excrete the drug metabolites.
• B. rapid cell catabolism.
• C. toxic effects of the prophylactic antibiotics given concurrently.
• D. the altered blood pH from the acidic nature of the drugs.

Correct answer: B

Rationale: The correct answer is 'rapid cell catabolism.' Chemotherapy leads to the destruction of cells, resulting in increased uric acid levels due to cell breakdown. Choice A is incorrect because the issue is not with the kidneys' ability to excrete the drug metabolites but rather with the cell breakdown. Choice C is incorrect as the question focuses on chemotherapy and its effects, not prophylactic antibiotics. Choice D is incorrect as the question pertains to the development of high uric acid levels, not altered blood pH from acidic drugs.

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