Nursing Elites

1. In which of the following organs does the exchange of gases take place?

• A. Kidneys
• B. Lungs
• C. Liver
• D. Heart

Correct answer: B

Rationale: The exchange of gases, specifically oxygen and carbon dioxide, occurs in the lungs. In the lungs, oxygen from the air we breathe enters the bloodstream, while carbon dioxide is removed from the bloodstream and exhaled. This process is essential for respiration and supplying the body with oxygen for energy production. The kidneys filter waste from the blood to produce urine and regulate fluid balance (Choice A). The liver is involved in detoxification, protein synthesis, and producing bile (Choice C). The heart is responsible for pumping blood throughout the body to deliver oxygen and nutrients (Choice D).

2. A client in the emergency department is experiencing an acute asthma attack. Which assessment indicates an improvement in respiratory status?

• A. SaO2 95%
• B. Wheezing
• C. Retraction of sternal muscles
• D. Premature ventricular complexes (PVC's)

Correct answer: A

Rationale: An SaO2 of 95% indicates an improvement in the client's oxygen saturation, suggesting better respiratory status. In asthma exacerbation, a decrease in SaO2 levels would signal worsening respiratory distress. Wheezing, retraction of sternal muscles, and premature ventricular complexes are indicators of respiratory compromise and worsening respiratory status in acute asthma attacks. Monitoring SaO2 levels is crucial in assessing the effectiveness of interventions and guiding treatment decisions.

3. Which of the following principles of primary nursing has proven most satisfying to the patient and nurse?

• A. Continuity of patient care promotes efficient and cost-effective nursing care.
• B. Autonomy and authority for planning are best delegated to a nurse who knows the patient well.
• C. Accountability is clearest when one nurse is responsible for the overall plan and its implementation.
• D. The holistic approach provides for a therapeutic relationship, continuity, and efficient nursing care.

Correct answer: D

Rationale: The holistic approach, encompassing a therapeutic relationship, continuity, and efficient nursing care, is the most satisfying principle of primary nursing. This approach considers the patient as a whole, taking into account physical, emotional, social, and spiritual aspects, which enhances the nurse-patient relationship and promotes comprehensive care. It emphasizes individualized care delivery, continuity of care, and an integrated approach, leading to improved patient satisfaction and nurse fulfillment.

4. When planning care for a client on mechanical ventilation, which mode of ventilation that increases the effort of the client's respiratory muscles should NOT be included in the plan of care?

• A. Assist-control
• B. Synchronized intermittent mandatory ventilation
• C. Continuous positive airway pressure
• D. Pressure support ventilation

Correct answer: A

Rationale: Assist-control ventilation mode delivers a preset tidal volume at a set rate; however, it may not be suitable for clients who need to maintain some level of respiratory muscle activity. This mode provides full support for each breath, potentially leading to decreased respiratory muscle strength over time. Therefore, it is important to avoid using assist-control mode for clients who require increased effort of respiratory muscles to prevent muscle atrophy and promote optimal respiratory function.

5. Which natural body defense plays an active role in preventing infection?

• A. Yawning
• B. Body hair
• C. Hiccupping
• D. Rapid eye movements

Correct answer: B

Rationale: Body hair plays an active role in preventing infection by acting as a filter to block pathogens. It helps to prevent harmful substances from entering the body through the skin, providing a physical barrier against potential infections.

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