Nursing Elites

1. How should the nurse interpret the following arterial blood gas results for a patient who had a tracheostomy placed after a motor vehicle crash: pH 7.48, PaO2 85 mm Hg, PaCO2 32 mm Hg, and HCO3 25 mEq/L?

• A. Metabolic acidosis
• B. Metabolic alkalosis
• C. Respiratory acidosis
• D. Respiratory alkalosis

Correct answer: D

Rationale: The patient's pH of 7.48 indicates alkalosis, and the low PaCO2 of 32 mm Hg suggests a respiratory cause. The HCO3 level is normal, ruling out metabolic causes. Therefore, the correct interpretation is respiratory alkalosis. Options A, B, and C are incorrect as they do not align with the pH and PaCO2 values provided.

2. A nurse is assessing a newly admitted patient with chronic heart failure who forgot to take prescribed medications and seems confused. The patient complains of "just blowing up" and has peripheral edema and shortness of breath. Which assessment should the nurse complete first?

• A. Skin turgor
• B. Heart sounds
• C. Mental status
• D. Capillary refill

Correct answer: C

Rationale: Increases in extracellular fluid (ECF) can lead to swelling of cells in the central nervous system, initially causing confusion, which may progress to coma or seizures. Although skin turgor, capillary refill, and heart sounds also may be affected by increases in ECF, these are signs that do not have as immediate impact on patient outcomes as cerebral edema.

3. A patient who is lethargic and exhibits deep, rapid respirations has the following arterial blood gas (ABG) results: pH 7.32, PaO2 88 mm Hg, PaCO2 37 mm Hg, and HCO3 16 mEq/L. How should the nurse interpret these results?

• A. Metabolic acidosis
• B. Metabolic alkalosis
• C. Respiratory acidosis
• D. Respiratory alkalosis

Correct answer: A

Rationale: The patient's pH is below the normal range (7.35-7.45), and the HCO3 is also below the normal range (22-26 mEq/L), indicating an acidic environment, which is consistent with metabolic acidosis. The ABGs provided do not support respiratory acidosis or alkalosis, as the PaCO2 is within the normal range (35-45 mm Hg) despite the patient's deep, rapid respirations. Therefore, the correct interpretation is metabolic acidosis.

4. A newly admitted patient is diagnosed with hyponatremia. When making room assignments, the charge nurse should take which action?

• A. Assign the patient to a room near the nurse’s station.
• B. Place the patient in a room nearest to the water fountain.
• C. Place the patient on telemetry to monitor for peaked T waves.
• D. Assign the patient to a semi-private room and place an order for a low-salt diet.

Correct answer: A

Rationale: The correct answer is A. The patient should be placed near the nurse’s station if confused to allow close monitoring by the staff. To help improve serum sodium levels, water intake is restricted, so a patient with hyponatremia should not be placed near a water fountain. Peaked T waves are a sign of hyperkalemia, not hyponatremia, so telemetry for this purpose is unnecessary. Placing a confused patient in a semi-private room could be disruptive to the other patient. Additionally, the patient needs sodium replacement, not a low-salt diet.

5. The father of an 11-year-old client reports to the nurse that the client has been wetting the bed since the passing of his mother and is concerned. Which action is most important for the nurse to take?

• A. Reassure the father that it is normal for a pre-teen to wet the bed during times of stress
• B. Inform the father that nocturnal emissions are abnormal and his son is developmentally delayed
• C. Inform the father that it is most important to let the son know that bedwetting is normal after trauma
• D. Refer the father and the client to a psychologist

Correct answer: D

Rationale: It is common for children to experience bedwetting as a response to severe trauma, such as losing a parent. Referring the father and the client to a psychologist is crucial in this situation to help the child cope with the loss and address any underlying emotional issues. Choice A is incorrect as bedwetting in this context is likely related to the trauma rather than puberty. Choice B is incorrect as nocturnal emissions are not abnormal and do not relate to bedwetting. Choice C is incorrect because the focus should be on addressing the emotional impact of the trauma rather than specifically discussing bedwetting.

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