Nursing Elites

1. The client develops a tension pneumothorax. Assessment is expected to reveal?

• A. Sudden hypertension and bradycardia
• B. Productive cough with yellow mucus
• C. Tracheal deviation and dyspnea
• D. Sudden development of profuse hemoptysis and weakness

Correct answer: C

Rationale: In a tension pneumothorax, the trachea deviates to the unaffected side due to increased pressure in the affected pleural space, causing respiratory distress. Dyspnea is a hallmark symptom as the lung on the affected side collapses, leading to difficulty in breathing. Sudden hypertension and bradycardia (Choice A) are not typical findings of tension pneumothorax. Productive cough with yellow mucus (Choice B) is more suggestive of respiratory infections rather than a tension pneumothorax. Sudden development of profuse hemoptysis and weakness (Choice D) is not characteristic of tension pneumothorax presentation.

2. In a client with asthma who develops respiratory acidosis, what should the nurse expect the client's serum potassium level to be?

• A. normal
• B. elevated
• C. low
• D. unrelated to the pH

Correct answer: B

Rationale: In respiratory acidosis, the serum potassium level is expected to be elevated. This occurs because potassium shifts from cells into the bloodstream as a compensatory mechanism to maintain acid-base balance. Choices A, C, and D are incorrect. A normal potassium level is not expected in respiratory acidosis. A low potassium level is more commonly associated with alkalosis, not acidosis. The potassium level is indeed related to pH changes in respiratory acidosis, leading to the expected elevation.

3. The charge nurse on a cardiac unit tells you a patient is exhibiting signs of right-sided heart failure. Which of the following would not indicate right-sided heart failure?

• A. Muscle tetany
• B. Syncope
• C. Numbness
• D. Anxiety

Correct answer: D

Rationale: The correct answer is 'Anxiety.' Anxiety is not a typical sign of right-sided heart failure. Right-sided heart failure usually presents with symptoms such as muscle tetany, syncope, and numbness. Muscle tetany can occur due to electrolyte imbalances seen in heart failure. Syncope can result from decreased cardiac output, leading to decreased perfusion to the brain. Numbness can occur due to poor circulation. While anxiety can be present in patients with various medical conditions, it is more commonly associated with respiratory acidosis or other psychological factors rather than right-sided heart failure.

4. Which physiologic mechanism best describes the function of the sodium-potassium pump?

• A. active transport
• B. diffusion
• C. filtration
• D. osmosis

Correct answer: A

Rationale: Active transport is the correct answer as it accurately describes the process involved in the sodium-potassium pump. The pump utilizes energy to move ions against their concentration gradient, maintaining cellular concentrations. Diffusion (choice B) is a passive process where substances move from an area of higher concentration to lower concentration. Filtration (choice C) involves the movement of solutes based on pressure gradients. Osmosis (choice D) is the movement of water across a semipermeable membrane.

5. The client is admitted to the hospital following a motor vehicle accident and has sustained a closed chest wound. Which assessment finding is consistent with a flail chest?

• A. Biot's respirations
• B. Sucking sounds during respirations
• C. Paradoxical chest wall movement
• D. Hypotension and bradycardia

Correct answer: C

Rationale: The correct assessment finding consistent with a flail chest is paradoxical chest wall movement. This occurs when a segment of the chest wall moves in the opposite direction to the rest of the chest during respiration. Biot's respirations (Choice A) are a pattern of breathing characterized by groups of quick, shallow inspirations followed by regular or irregular periods of apnea. Sucking sounds during respirations (Choice B) may indicate air entering or leaving the chest cavity through a wound. Hypotension and bradycardia (Choice D) may be present due to other factors such as shock, but they are not specific to a flail chest.

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