Nursing Elites

1. What causes the appearance of a barrel chest in clients with emphysema?

• A. Peripheral edema
• B. Bacterial infections in the lungs
• C. Air trapping in the alveoli
• D. Muscle atrophy of the diaphragm

Correct answer: C

Rationale: The correct answer is C: Air trapping in the alveoli. A barrel chest in emphysema results from the hyperinflation of the lungs due to air trapping in the alveoli. This leads to increased anteroposterior diameter of the chest. Choices A, B, and D are incorrect. Peripheral edema is swelling caused by fluid retention in tissues, not associated with a barrel chest in emphysema. Bacterial infections in the lungs can lead to conditions like pneumonia but do not directly cause a barrel chest. Muscle atrophy of the diaphragm could affect breathing mechanics but is not specifically linked to the development of a barrel chest in emphysema.

2. Which scenario would be an example of a child born with congenital insensitivity to pain?

• A. A child who does not cry when injured and fails to respond to painful stimuli.
• B. A child who cries excessively and has a heightened response to pain.
• C. A child who experiences pain but has difficulty expressing it.
• D. A child who is sensitive to minor stimuli but has a delayed response to severe pain.

Correct answer: A

Rationale: The correct scenario depicting a child with congenital insensitivity to pain is when the child does not cry when injured and fails to respond to painful stimuli. This condition is characterized by the inability to feel and react to pain, resulting in a lack of typical responses such as crying or withdrawal when hurt. Choice B is incorrect as it describes a child with heightened pain sensitivity, opposite to the insensitivity seen in the condition. Choice C is incorrect as it suggests the child feels pain but struggles to communicate it, which is not the case with congenital insensitivity to pain. Choice D is incorrect as it describes a child who is sensitive to minor stimuli and has delayed responses to severe pain, which is not indicative of congenital insensitivity to pain.

3. Helicobacter pylori (H. pylori) often causes which of the following?

• A. Colon cancer
• B. Hiatal hernia
• C. Peptic ulcer disease
• D. Esophageal varices

Correct answer: C

Rationale: Helicobacter pylori is a bacterium known to cause peptic ulcer disease by weakening the protective lining of the stomach and duodenum, leading to inflammation and ulcers. While chronic H. pylori infection is a risk factor for stomach cancer, it is not directly linked to colon cancer (Choice A), hiatal hernia (Choice B), or esophageal varices (Choice D). Therefore, the correct answer is C.

4. A 50-year-old woman has had a relapse of her multiple sclerosis (MS) after several years of being symptom-free. Which of the following factors is most likely to have contributed to her relapse?

• A. Emotional stress
• B. Dietary indiscretion
• C. Physical overexertion
• D. Adequate rest and relaxation

Correct answer: C

Rationale: The correct answer is C: Physical overexertion. In individuals with multiple sclerosis (MS), physical overexertion can exacerbate symptoms and contribute to a relapse. It is important for individuals with MS to balance physical activity to avoid triggering symptom reoccurrence. Choices A, B, and D are less likely to have directly contributed to the relapse. Emotional stress and dietary indiscretion may play a role in exacerbating symptoms in some individuals, but physical overexertion is more commonly associated with MS relapses. Adequate rest and relaxation are important for overall well-being but are not typically linked to MS relapses.

5. A tension pneumothorax requires a needle thoracostomy and/or chest tube placement as treatment to which component of the pathophysiology of the condition?

• A. An accumulation of blood in the pleural space, which makes it difficult for the lungs to exchange gases.
• B. Extreme pain caused by a fractured rib
• C. A large accumulation of trapped air in the pleural space affecting both the lungs and heart.
• D. Sudden failure of the respiratory system due to fluid accumulation in the alveoli

Correct answer: C

Rationale: A tension pneumothorax is characterized by a large accumulation of trapped air in the pleural space, creating pressure that affects both the lungs and heart. This condition can lead to life-threatening consequences by shifting mediastinal structures and impairing cardiac function. Treatment involves decompressing the trapped air to relieve the tension. Choices A, B, and D are incorrect as they do not describe the primary pathophysiological mechanism of tension pneumothorax, which is the accumulation of air in the pleural space, not blood, rib fractures, or alveolar fluid accumulation.

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