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 reports a headache and vertigo after turning on his furnace for the first time this season. The nurse should suspect which of the following conditions?

• A. Carbon monoxide poisoning
• B. Heat stroke
• C. Hypersensitivity reaction
• D. Oxygen toxicity

Correct answer: A

Rationale: When a client reports headache and vertigo after turning on the furnace for the first time, it suggests carbon monoxide poisoning. Carbon monoxide is an odorless, colorless gas that can be released by malfunctioning heating systems. Symptoms of carbon monoxide poisoning include headache, dizziness, weakness, nausea, and confusion. It is crucial for the nurse to suspect this condition promptly to ensure the client's safety and well-being.

3. When teaching a client with chronic obstructive pulmonary disease (COPD) about nutrition, what information should be included? (Select all that apply)

• A. Avoid drinking fluids just before and during meals.
• B. Rest before meals if experiencing dyspnea.
• C. Have about six small meals a day.
• D. Eat high-fiber foods to promote gastric emptying.

Correct answer: D

Rationale: When educating a client with COPD about nutrition, it is important to consider factors that can impact breathing and digestion. Avoiding drinking fluids just before and during meals can help prevent bloating, which may impede breathing. Resting before meals if experiencing dyspnea can aid in reducing respiratory effort during eating. Having about six small meals a day can help prevent overeating and decrease the feeling of fullness, promoting easier breathing. However, it is crucial to be cautious with high-fiber foods as they can produce gas, leading to abdominal bloating and increased shortness of breath. Clients with COPD should focus on increasing calorie and protein intake to prevent malnourishment. It is advisable not to increase carbohydrate intake as this can elevate carbon dioxide production and exacerbate breathing difficulties.

4. A client with end-stage renal disease (ESRD) is receiving hemodialysis. Which assessment finding indicates a need for immediate action?

• A. Weight gain of 1 kg since the last dialysis session
• B. Blood pressure of 150/90 mm Hg
• C. Potassium level of 6.5 mEq/L
• D. Hemoglobin level of 10 g/dL

Correct answer: C

Rationale: A potassium level of 6.5 mEq/L is critically high and can lead to life-threatening cardiac dysrhythmias, requiring immediate intervention. Hyperkalemia is a common complication in clients with ESRD due to the kidneys' inability to excrete potassium effectively. High potassium levels can result in serious cardiac consequences such as arrhythmias, cardiac arrest, and death. Prompt action is necessary to prevent these severe complications.

5. A client has an oxygen saturation of 88% on room air. Which action should the nurse take first?

• A. Initiate oxygen therapy at 2 liters per minute via nasal cannula.
• B. Place the client in a high-Fowler's position.
• C. Notify the healthcare provider.
• D. Document the finding in the client's medical record.

Correct answer: A

Rationale: The priority action for a client with an oxygen saturation of 88% on room air is to initiate oxygen therapy to improve oxygen saturation levels. Oxygen therapy is crucial to address hypoxemia promptly. Placing the client in a high-Fowler's position can also aid in oxygenation, but administering oxygen takes precedence. While notifying the healthcare provider is important, it is a secondary action after ensuring the client's immediate need for oxygen is met. Documenting the finding in the client's medical record is necessary for continuity of care but is not the primary intervention when addressing hypoxemia.

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