not realizing that its surface was hot a woman has quickly withdrawn her hand from the surface of a bowl that she was removing from a microwave which
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Nursing Elites

ATI RN

ATI Pathophysiology Exam

1. Not realizing that its surface was hot, a woman has quickly withdrawn her hand from the surface of a bowl that she was removing from a microwave. Which phenomena has facilitated the rapid movement of her hand in response to the painful stimulus?

Correct answer: C

Rationale: The withdrawal reflex is a protective response that allows a person to quickly remove their hand from a painful stimulus.

2. A student nurse was asked which of the following best describes dementia. Which of the following best describes the condition?

Correct answer: D

Rationale: The correct answer is D. Dementia is characterized by a loss of cognitive abilities that impairs the individual's capacity to perform activities of daily living. Choice A is incorrect because dementia is not simply memory loss related to aging but involves broader cognitive deficits. Choice B is incorrect as it does not capture the comprehensive cognitive decline seen in dementia. Choice C is incorrect as dementia typically progresses gradually rather than rapidly, and it is not solely about severe cognitive impairment but also impacts daily functioning.

3. The unique clinical presentation of a 3-month-old infant in the emergency department leads the care team to suspect botulism. Which assessment question posed to the parents is likely to be most useful in the differential diagnosis?

Correct answer: B

Rationale: The correct answer is B. Poor feeding and constipation are common early symptoms of infant botulism, which is caused by a neurotoxin that impairs muscle function. Option A is unrelated to the presentation of botulism. Option C does not directly relate to the symptoms of botulism. Option D is more indicative of respiratory issues rather than the constellation of symptoms seen in botulism.

4. What is the action of amphotericin B?

Correct answer: A

Rationale: Amphotericin B is an antifungal medication that acts by binding to ergosterol, a component of fungal cell membranes, forming pores that disrupt the integrity of the membrane. This action leads to leakage of cellular contents and ultimately cell death. Choice B is incorrect as amphotericin B does not bind to an enzyme required for the synthesis of ergosterol. Choice C is incorrect as the drug primarily affects the cell membrane rather than the cell wall. Choice D is also incorrect as amphotericin B does not inhibit glucan synthetase.

5. A 25-year-old just had a colonoscopy and was diagnosed with Crohn disease. Which of the following symptoms is consistent with this diagnosis?

Correct answer: A

Rationale: The correct answer is A: Right lower quadrant cramping. Crohn's disease commonly presents with abdominal pain, particularly in the right lower quadrant. Choice B, severe bloody diarrhea, is more characteristic of ulcerative colitis, another type of inflammatory bowel disease. Choice C, nausea and vomiting, are not typical symptoms of Crohn's disease. Choice D is incorrect as Crohn's disease can affect any part of the gastrointestinal tract, not just the rectum.

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