Nursing Elites

1. 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.

2. After applying oxygen using bi-nasal prongs to a client who is having chest pain, the nurse should implement which intervention?

• A. Have the client take slow deep breaths in through their mouth and out through their nose.
• B. Post signs indicating that oxygen is in use on the client's door and in their room
• C. Apply Vaseline petroleum to both nares and 2 by 2 gauze around the oxygen tubing at the client's ears
• D. Encourage the client to hyperextend the neck, take a few deep breaths and cough.

Correct answer: A

Rationale: After applying oxygen using bi-nasal prongs to a client with chest pain, it is essential for the nurse to post signs indicating that oxygen is in use on the client's door and in their room. This safety precaution alerts healthcare providers and visitors that the client is receiving oxygen therapy, reducing the risk of accidents or misunderstandings. Choice A is incorrect because instructing the client to take slow deep breaths is not the appropriate intervention after applying oxygen. Choice C suggests applying Vaseline and gauze, which is unnecessary and not a standard practice. Choice D advising the client to hyperextend the neck, take deep breaths, and cough is not indicated after applying oxygen therapy and could potentially be harmful.

3. Which of the following needs immediate medical attention and emergency intervention? The client who:

• A. complains of sharp pain upon taking a deep breath and excessive coughing.
• B. exhibits yellow, productive sputum, low-grade fever, and crackles.
• C. has a shift of the trachea to the left, with no breath sounds on the right.
• D. has asthma and complains of an inability to catch her breath after exercise.

Correct answer: C

Rationale: Choice C is indicative of a tension pneumothorax, which is considered a medical emergency. The respiratory system is severely compromised, and venous return to the heart is affected. The mediastinal shift is to the unaffected side, indicating a critical situation that requires immediate intervention to prevent further deterioration. This condition can rapidly progress to a life-threatening state, necessitating prompt medical attention. Choices A, B, and D do not present with life-threatening conditions requiring emergency intervention. Choice A mentions symptoms of pleurisy, which may be painful but not immediately life-threatening. Choice B describes symptoms of bronchitis, which may require medical attention but not of an emergent nature. Choice D reflects a common complaint in asthma but does not suggest an immediate life-threatening situation unless severe respiratory distress is present.

4. The client is undergoing progressive ambulation on the third day after a myocardial infarction. Which clinical manifestation would indicate that the client should not be advanced to the next level?

• A. Facial flushing
• B. A complaint of chest heaviness
• C. Heart rate increase of 10 beats/min
• D. Systolic blood pressure increase of 10 mm Hg

Correct answer: B

Rationale: The correct answer is a complaint of chest heaviness. Onset of chest pain indicates myocardial ischemia, which can be life-threatening. Chest pain in a client post-myocardial infarction should be promptly evaluated, and the activity level should not be advanced. Choices A, C, and D are not the best options because facial flushing, a heart rate increase of 10 beats/min, and a systolic blood pressure increase of 10 mm Hg are not typical indicators of myocardial ischemia or necessarily contraindications for advancing activity levels in this context.

5. A nurse is taking the health history of an 85-year-old client. Which of the following physical findings is consistent with normal aging?

• A. Increase in subcutaneous fat.
• B. Diminished cough reflex.
• C. Long-term memory loss.
• D. Myopia.

Correct answer: B

Rationale: The correct answer is 'Diminished cough reflex.' Diminished cough reflex is a physical finding consistent with normal aging in older adults, which can increase the risk of aspiration and atelectasis. An increase in subcutaneous fat actually raises the risk of pressure ulcers. While long-term memory is typically preserved in aging unless affected by dementia, short-term memory often declines. Myopia (near-sightedness) is common in younger individuals, but presbyopia (far-sightedness) is more common with aging. Additionally, individuals with myopia may experience an improvement in vision as they age.

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