Nursing Elites

1. A client's arterial blood gas results show a pH of 7.3 and a PaCO2 of 50 mm Hg. The client is experiencing which of the following acid-base imbalances?

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

Correct answer: C

Rationale: In respiratory acidosis, there is an excess of carbon dioxide (PaCO2 > 45 mm Hg) leading to a decrease in pH (<7.35). The given values of a pH of 7.3 and PaCO2 of 50 mm Hg indicate respiratory acidosis. Metabolic acidosis involves a primary decrease in bicarbonate levels with a compensatory decrease in PaCO2 to maintain balance. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. Respiratory alkalosis is marked by low PaCO2 and increased pH levels.

2. A home health nurse visits a client who has COPD and receives oxygen at 2 L/min via nasal cannula. The client reports difficulty breathing. Which of the following actions is the nurse's priority?

• A. Increase the oxygen flow to 3 L/min.
• B. Assess the client's respiratory status.
• C. Call emergency services for the client.
• D. Have the client cough and expectorate secretions.

Correct answer: B

Rationale: When a client with COPD on oxygen therapy reports difficulty breathing, the priority action for the nurse is to assess the client's respiratory status. This involves evaluating the client's oxygen saturation levels, respiratory rate, effort of breathing, lung sounds, and overall respiratory distress. By assessing the client's respiratory status, the nurse can determine the severity of the situation and make appropriate decisions regarding further interventions, such as adjusting oxygen flow rate, providing respiratory treatments, or seeking emergency assistance if necessary.

3. A student is practicing suctioning a tracheostomy in the skills laboratory. What action by the student demonstrates that more teaching is needed?

• A. Applying suction while withdrawing the catheter
• B. Preoxygenating the client before suctioning
• C. Suctioning up to three times if necessary
• D. Suctioning for a duration of 10 to 15 seconds each time

Correct answer: A

Rationale: The correct technique for suctioning a tracheostomy involves applying suction while withdrawing the catheter to avoid damaging the tracheal mucosa. Therefore, the student applying suction while inserting the catheter indicates a need for further teaching. Preoxygenating the client, suctioning up to three times if necessary, and limiting suctioning to 10 to 15 seconds each time are all appropriate actions in tracheostomy suctioning.

4. A nurse in an emergency room is caring for a client who sustained partial-thickness burns to both lower legs, chest, face, and both forearms. Which of the following is the priority action the nurse should take?

• A. Insert an indwelling urinary catheter.
• B. Inspect the mouth for signs of inhalation injuries.
• C. Administer intravenous pain medication.
• D. Draw blood for a complete blood cell (CBC) count.

Correct answer: B

Rationale: When caring for a client with burns, especially burns to the face and chest, the priority action for the nurse is to inspect the mouth for signs of inhalation injuries. Inhalation injuries can be life-threatening and may not be immediately apparent. Identifying these injuries early allows for prompt intervention and can significantly impact the client's outcomes. While other actions such as pain management and blood tests are important, assessing for inhalation injuries takes precedence due to its critical nature.

5. Which action should the nurse take to reduce the risk of ventilator-associated pneumonia in a client with an endotracheal tube receiving mechanical ventilation?

• A. Position the head of the client's bed flat
• B. Turn the client every 4 hours
• C. Brush the client's teeth with a suction toothbrush every 12 hours
• D. Provide humidity by maintaining moisture within the ventilator tubing

Correct answer: C

Rationale: Ventilator-associated pneumonia (VAP) is a common complication in clients receiving mechanical ventilation. Oral hygiene is crucial in reducing the risk of VAP. Brushing the client's teeth with a suction toothbrush every 12 hours helps prevent bacterial colonization in the oral cavity, which can be aspirated into the lungs. Positioning the head of the bed flat can increase the risk of aspiration. Turning the client every 4 hours is important for preventing pressure ulcers but not directly related to reducing VAP. Providing humidity in the ventilator tubing helps maintain airway moisture but does not directly address the risk of VAP.

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