A nurse evaluates the following arterial blood gas values in a patient: pH 7.48, PaO 98 mm Hg, PaCO 28 mm Hg, and HCO - 22 mEq/L (22 mmol/L). Which patient condition does the nurse correlate with these results?

Diarrhea and vomiting for 36 hours

Chronic obstructive pulmonary disease (COPD)

Anxiety-induced hyperventilation

Diabetic ketoacidosis and chronic obstructive pulmonary disease (COPD)

Answer and Explanation

The Correct Answer is C

A. Diarrhea and vomiting for 36 hours:

Diarrhea and vomiting can lead to metabolic acidosis due to loss of bicarbonate and increased hydrogen ion concentration in the blood. However, the ABG values provided indicate respiratory alkalosis (high pH and low PaCO2), which is not consistent with metabolic acidosis caused by diarrhea and vomiting. Therefore, this choice does not correlate with the ABG values.

B. Chronic obstructive pulmonary disease (COPD):

COPD is a respiratory condition characterized by airflow limitation and increased airway resistance. It can lead to respiratory acidosis due to retention of carbon dioxide (PaCO2 levels would be elevated). The ABG values in the scenario show respiratory alkalosis (low PaCO2), which is the opposite of what would be expected in COPD. Therefore, this choice does not correlate with the ABG values provided.

C. Anxiety-induced hyperventilation:

Anxiety-induced hyperventilation is a common cause of respiratory alkalosis. During hyperventilation, there is excessive elimination of carbon dioxide (PaCO2 levels decrease), leading to an increase in pH (alkalosis). The ABG values in the scenario show a high pH (7.48) and low PaCO2 (28 mm Hg), consistent with respiratory alkalosis seen in hyperventilation due to anxiety.

D. Diabetic ketoacidosis and chronic obstructive pulmonary disease (COPD):

Diabetic ketoacidosis (DKA) is a metabolic condition characterized by hyperglycemia, ketosis, and metabolic acidosis (low pH and low bicarbonate levels). COPD, as mentioned earlier, can lead to respiratory acidosis due to retained carbon dioxide. Neither of these conditions correlates with the ABG values provided, which show respiratory alkalosis (high pH and low PaCO2). Therefore, this choice does not correlate with the ABG values.

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Correct Answer is C

Explanation

A. Arrange for the patient to receive gamma globulin.

Gamma globulin is a blood product that contains antibodies and is sometimes used for post-exposure prophylaxis in certain situations, such as for individuals who are immunocompromised or pregnant and have been exposed to varicella (chickenpox) or measles. However, for a frail, older adult who had chickenpox as a child and has been exposed to varicella again, arranging for gamma globulin may not be necessary if the patient is already immune to chickenpox.

B. Assess frequently for herpes zoster.

Herpes zoster (shingles) is caused by the reactivation of the varicella-zoster virus, the same virus that causes chickenpox. While exposure to varicella can increase the risk of developing shingles in individuals who are susceptible, frequent assessment for herpes zoster is not necessary in this case if the patient is known to have had chickenpox in the past.

C. Be aware of the patient's immunity to chickenpox.

This option is the correct choice. Since the patient had chickenpox as a child, they likely have immunity to chickenpox. Being aware of this immunity helps the nurse understand that the patient may not develop chickenpox again even after exposure to varicella.

D. Encourage the patient to have a pneumonia vaccine.

Encouraging the patient to have a pneumonia vaccine is unrelated to the immediate concern of exposure to varicella. While pneumonia vaccines are important for older adults, especially those who are frail, the priority in this scenario is to determine the patient's immunity to chickenpox due to prior infection.

A. High-protein diet with vitamins and mineral supplements B. Low-fat diet with whole grains and cereals and vitamin supplements C. Vegetarian diet with nutritional supplements and fish oil capsules D. low cholesterol, high-fiber, low-carbohydrate diet

Correct Answer is A

Explanation

A. High-protein diet with vitamins and mineral supplements:

This choice indicates a good understanding of preventing pressure ulcers. High-protein diets are beneficial for tissue repair and wound healing. Adequate protein intake supports collagen synthesis, which is essential for maintaining skin integrity and healing wounds. Additionally, vitamins and mineral supplements can contribute to overall nutritional status and support tissue health.

B. Low-fat diet with whole grains and cereals and vitamin supplements:

While a low-fat diet and whole grains are generally healthy choices, they may not specifically address the needs of a patient at risk for pressure ulcers. Fat is important for skin health, and whole grains can contribute to overall nutrition, but protein and specific vitamins and minerals are more directly related to tissue repair and wound healing.

C. Vegetarian diet with nutritional supplements and fish oil capsules:

A vegetarian diet can be healthy, but it requires careful planning to ensure adequate protein intake, especially for tissue repair and wound healing. Nutritional supplements may help fill nutrient gaps, but specific attention to protein sources is crucial for preventing pressure ulcers. Fish oil capsules can provide omega-3 fatty acids, which may have some benefits for skin health.

D. Low cholesterol, high-fiber, low-carbohydrate diet:

This diet choice focuses more on cardiovascular health and weight management rather than addressing the needs of a patient at risk for pressure ulcers. While a balanced diet with adequate fiber can support overall health, protein intake and specific vitamins and minerals are more critical for skin integrity and wound healing.

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A nurse evaluates the following arterial blood gas values in a patient: pH 7.48, PaO 98 mm Hg, PaCO 28 mm Hg, and HCO - 22 mEq/L (22 mmol/L). Which patient condition does the nurse correlate with these results?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A frail, older adult home health patient who had chickenpox as a child has been exposed to varicella (chickenpox) several days ago. What should the nurse do?

Correct Answer is C

Explanation

After teaching a patient who is at risk for the formation of pressure ulcers, a nurse assesses the patients understanding. Which dietary choice by the patient indicates a good understanding of the teaching?

Correct Answer is A

Explanation

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