a patient has developed a decubitus ulcer on the coccyx what defense mechanism is most affected by this homeostatic change a patient has developed a decubitus ulcer on the coccyx what defense mechanism is most affected by this homeostatic change
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Nursing Elites

ATI RN

Final Exam Pathophysiology

1. A patient has developed a decubitus ulcer on the coccyx. What defense mechanism is most affected by this homeostatic change?

Correct answer: C

Rationale: In this scenario, a decubitus ulcer on the coccyx indicates a breakdown of the skin's integrity due to prolonged pressure. The skin is the primary defense mechanism of the body against external pathogens. When the skin is compromised, it can lead to infections and other complications. The mucous membrane (Choice A) plays a role in protecting internal surfaces, not the skin. The respiratory tract (Choice B) is involved in breathing and not directly related to the skin's defense. The gastrointestinal tract (Choice D) is responsible for digestion and absorption of nutrients, not the primary defense mechanism against external threats like the skin.

2. After change-of-shift report, which patient should the nurse assess first?

Correct answer: C

Rationale: The patient with hyperosmolar hyperglycemic syndrome who presents with poor skin turgor and dry oral mucosa requires immediate attention. These signs indicate severe dehydration and potential electrolyte imbalances, which can lead to serious complications. Assessing this patient first allows for prompt intervention and monitoring to stabilize their condition. Choice A is less urgent as the patient has possible dawn phenomenon, which is a common early-morning rise in blood glucose levels. Choice B, with a blood glucose reading of 230 mg/dL, indicates hyperglycemia but does not present with signs of severe dehydration like the patient in choice C. Choice D, with peripheral neuropathy and foot pain, is important but not as urgent as addressing severe dehydration and electrolyte imbalances in the patient with hyperosmolar hyperglycemic syndrome.

3. Which action would break sterile technique while preparing a sterile field for a dressing change?

Correct answer: B

Rationale: Touching the outside wrapper of sterilized material without sterile gloves can introduce contaminants and compromise the sterility of the item. It is crucial to maintain strict adherence to sterile technique to prevent infections and ensure patient safety during procedures.

4. A client with Guillain-Barré syndrome is experiencing ascending paralysis. Which of the following interventions should the nurse prioritize?

Correct answer: A

Rationale: The correct answer is A: Monitor for signs of respiratory distress. In Guillain-Barré syndrome, ascending paralysis can lead to respiratory muscle involvement, putting the client at risk for respiratory distress and failure. Prioritizing respiratory monitoring is crucial to ensure timely intervention if respiratory compromise occurs. Plasmapheresis (Choice B) may be indicated in some cases to remove harmful antibodies, but the priority in this situation is respiratory support. Administering analgesics (Choice C) for pain management and initiating passive range-of-motion exercises (Choice D) are important aspects of care but are not the priority when the client's respiratory status is at risk.

5. To provide effective care for the patient diagnosed with schizophrenia, the nurse should frequently assess for which associated condition? Select one that doesn't apply.

Correct answer: C

Rationale: Schizophrenia is often associated with comorbid conditions such as alcohol use disorder, major depressive disorder, polydipsia, and metabolic syndrome. Stomach cancer is not a common associated condition with schizophrenia and would not be a typical focus of assessment in managing a patient with this mental health disorder.

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