ATI RN
ATI Pathophysiology Exam 1
1. Which of the following might result from severe diarrhea?
- A. Respiratory acidosis
- B. Metabolic alkalosis
- C. Respiratory alkalosis
- D. Metabolic acidosis
Correct answer: D
Rationale: The correct answer is D: Metabolic acidosis. Severe diarrhea can lead to metabolic acidosis because the loss of bicarbonate ions in the stool results in an overall decrease in the body's bicarbonate levels. Respiratory acidosis (choice A) is caused by retention of carbon dioxide, usually due to inadequate alveolar ventilation. Metabolic alkalosis (choice B) is characterized by elevated pH and bicarbonate levels, usually caused by conditions like vomiting. Respiratory alkalosis (choice C) is a condition of low blood carbon dioxide levels and high pH, often due to hyperventilation.
2. A woman is complaining that she feels like the room is spinning even though she is not moving. Which of the following is characteristic of benign positional vertigo?
- A. It usually occurs with a headache.
- B. Pupillary changes are common.
- C. It is usually triggered when the patient bends forward.
- D. Nystagmus continues even when the eyes fixate on an object.
Correct answer: C
Rationale: The correct answer is C: 'It is usually triggered when the patient bends forward.' Benign positional vertigo is often triggered by changes in head position, such as bending forward. Choices A, B, and D are incorrect. A is incorrect because benign positional vertigo is not typically associated with headaches. B is incorrect because pupillary changes are not a common feature of benign positional vertigo. D is incorrect because nystagmus in benign positional vertigo usually stops when the eyes fixate on an object.
3. A 25-year-old just had a colonoscopy and was diagnosed with Crohn disease. Which of the following symptoms is consistent with this diagnosis?
- A. Right lower quadrant cramping
- B. Severe bloody diarrhea
- C. Nausea and vomiting
- D. Mostly affects the rectum
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.
4. The nurse is planning care for a client with damage to the vestibular area of the vestibulocochlear nerve. What should the nurse include in the plan of care? Select all that apply.
- A. Assistance with ambulation
- B. Regular hearing tests
- C. Monitoring for nausea
- D. Vision assessments
Correct answer: A
Rationale: Damage to the vestibular area affects balance and may cause nausea. Therefore, the nurse should include assistance with ambulation in the care plan to help the client maintain stability while walking. Regular hearing tests (choice B) are not directly related to damage in the vestibular area of the vestibulocochlear nerve. While nausea (choice C) may occur due to vestibular damage, monitoring for it alone is not as essential as providing assistance with ambulation. Vision assessments (choice D) are important for assessing visual function but are not the priority when dealing with vestibular issues.
5. Which patient is most likely to be diagnosed with complex regional pain syndrome II (CRPS II)?
- A. A patient who has experienced a spinal cord injury and reports severe, burning pain in his legs.
- B. A patient who reports severe pain in her hand following a surgery for carpal tunnel syndrome.
- C. A patient who develops pain in his foot following a fracture and immobilization with a cast.
- D. A patient who experiences chronic pain and swelling in his arm following a brachial plexus injury.
Correct answer: D
Rationale: Complex regional pain syndrome II (CRPS II) typically occurs after an injury to a peripheral nerve. In this case, a brachial plexus injury involves damage to the nerves that control muscles in the arm and hand, leading to chronic pain and swelling. Choices A, B, and C describe pain related to other conditions such as spinal cord injury, carpal tunnel surgery, and fracture immobilization, which are not typically associated with CRPS II.
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