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 is hospitalized with a second episode of pulmonary embolism (PE). Recent genetic testing reveals the client has an alteration in the gene CYP2C19. What action by the nurse is best?

• A. Instruct the client to eliminate all vitamin K from the diet.
• B. Prepare preoperative teaching for an inferior vena cava (IVC) filter.
• C. Refer the client to a chronic illness support group.
• D. Teach the client to use a soft-bristled toothbrush.

Correct answer: B

Rationale: Clients with an alteration in the CYP2C19 gene do not metabolize warfarin (Coumadin) well, leading to higher blood levels and more side effects. As this client is a poor candidate for warfarin therapy, the prescriber will most likely recommend the implantation of an inferior vena cava (IVC) filter. This device helps prevent blood clots from reaching the lungs, reducing the risk of pulmonary embolism.

3. While dining at a restaurant, a person begins to choke. Which of the following actions should the nurse take?

• A. Instruct the person to call 911.
• B. Ask the person if he/she can speak.
• C. Use the jaw-thrust maneuver.
• D. Perform abdominal thrusts.

Correct answer: B

Rationale: When encountering a choking individual, the nurse should first assess the person's ability to speak. If the person can speak, it indicates that their airway is partially obstructed, allowing some air to pass. In this case, encouraging the person to continue coughing and monitoring them closely may be appropriate. If the person cannot speak, it may suggest a complete airway obstruction and immediate intervention is required. Instructing the person to call 911 (Choice A) may be necessary if the situation worsens. Using the jaw-thrust maneuver (Choice C) is not appropriate for a choking victim. Performing abdominal thrusts (Choice D) is typically recommended for conscious choking victims, not chest compressions.

4. A client has a mediastinal chest tube. Which symptom requires the nurse's immediate intervention?

• A. Production of pink sputum
• B. Tracheal deviation
• C. Drainage greater than 70 mL/hr
• D. Sudden onset of shortness of breath

Correct answer: B

Rationale: Immediate intervention is required if the client exhibits tracheal deviation as it could indicate a tension pneumothorax, a life-threatening condition that requires prompt attention to prevent respiratory compromise. Production of pink sputum may indicate bleeding but would not be as immediately life-threatening as tracheal deviation. Drainage greater than 70 mL/hr could indicate hemorrhage, which also requires attention but is not as urgent as tracheal deviation. Sudden onset of shortness of breath could indicate various issues, including dislodgment of the tube or pneumothorax, which require intervention but are not as critical as tracheal deviation in this context.

5. What question should a nurse ask a client who has an anteroposterior (AP) chest diameter equal to the lateral chest diameter?

• A. Are you taking any medications or herbal supplements?
• B. Do you have any chronic breathing problems?
• C. How often do you perform aerobic exercise?
• D. What is your occupation and what are your hobbies?

Correct answer: B

Rationale: The correct answer is B. A nurse should ask the client if they have any chronic breathing problems when the anteroposterior (AP) chest diameter is the same as the lateral chest diameter. This finding indicates a barrel chest, which can be associated with chronic respiratory conditions such as chronic obstructive pulmonary disease (COPD) or emphysema. Assessing for chronic breathing problems can help the nurse further evaluate the client's respiratory status and provide appropriate care.

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