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 client learns about pursed-lip breathing. Which statement by the client indicates teaching has been effective?

• A. I will breathe in quickly through my mouth and out through my nose.
• B. I will breathe in slowly through my nose and out through pursed lips.
• C. I will hold my breath for 10 seconds before exhaling.
• D. I will breathe in and out through pursed lips.

Correct answer: B

Rationale: The correct technique for pursed-lip breathing involves inhaling slowly through the nose and exhaling slowly through pursed lips. This technique helps improve expiration and reduce air trapping. Breathing in quickly, holding the breath, or breathing in and out through pursed lips does not align with the correct method of pursed-lip breathing.

3. A client with asthma presents with bilateral wheezing, decreased pulse oxygen saturation, and suprasternal retraction on inhalation. Which actions should the nurse take? (SATA)

• A. Administer prescribed salmeterol (Serevent) inhaler.
• B. Assess the client for a tracheal deviation.
• C. Administer oxygen to maintain saturations above 94%.
• D. Perform peak expiratory flow measurements.

Correct answer: C

Rationale: Suprasternal retraction during inhalation suggests the client is using accessory muscles due to difficulty in moving air into the respiratory passages caused by airway narrowing. The presence of bilateral wheezing and decreased pulse oxygen saturation further support airway narrowing. In this situation, immediate intervention is necessary to improve oxygenation. Administering oxygen to maintain saturations above 94% is crucial to support oxygenation. While administering a rescue inhaler may be warranted, the priority in this scenario is ensuring adequate oxygenation to address the respiratory distress.

4. During a home visit to an older client living alone post-coronary artery bypass graft, what finding prompts the nurse to consider additional referrals?

• A. Dirty carpets requiring vacuuming
• B. Expired food found in the refrigerator
• C. Outdated medications stored in the kitchen
• D. Presence of multiple cats in the home

Correct answer: B

Rationale: The presence of expired food in the refrigerator is concerning as it raises safety issues for the client and indicates potential financial constraints preventing them from buying fresh food. The nurse should consider referring the client to services like Meals on Wheels or other home-based food programs to address this issue and ensure the client's nutritional needs are met.

5. A healthcare professional is reviewing the arterial blood gas results for a client in the ICU who has kidney failure and determines the client has respiratory acidosis. Which of the following findings should the healthcare professional expect?

• A. Widened QRS complexes
• B. Hyperactive deep tendon reflexes
• C. Bounding peripheral pulses
• D. Warm, flushed skin

Correct answer: A

Rationale: Respiratory acidosis is a condition characterized by increased carbon dioxide levels in the blood, resulting in acidosis. One of the potential consequences of respiratory acidosis is the development of electrolyte imbalances, particularly hyperkalemia. Hyperkalemia can lead to cardiac conduction abnormalities, manifested as widened QRS complexes on an electrocardiogram (ECG). Therefore, in a client with respiratory acidosis, the healthcare professional should expect to find widened QRS complexes as a result of the associated hyperkalemia.

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