ATI RN
Pathophysiology Exam 1 Quizlet
1. An MRI scan of a 33-year-old female client with new-onset seizures has revealed a lesion on her frontal lobe. Which of the following signs and symptoms would most likely be a direct result of this lesion?
- A. Changes in sensation or movement in the client's limbs
- B. Fluctuations in blood pressure
- C. Changes in speech and reasoning
- D. Increased intracranial pressure
Correct answer: C
Rationale: The correct answer is C: Changes in speech and reasoning. The frontal lobe is responsible for higher cognitive functions, including speech and reasoning. A lesion in this area can lead to difficulties in speech production, language comprehension, and reasoning abilities. Choices A, B, and D are incorrect. Changes in sensation or movement in the client's limbs are more associated with lesions in the motor or sensory cortices of the brain, not the frontal lobe. Fluctuations in blood pressure are often related to autonomic nervous system dysfunction, which is controlled by other brain regions. Increased intracranial pressure is typically seen in conditions like brain tumors or head trauma, not directly related to a frontal lobe lesion.
2. A 30-year-old has poorly controlled asthma and is taking prednisone 10 mg by mouth once a day. He has been on this regimen for 6 weeks. Abrupt withdrawal or discontinuation of this medication can cause:
- A. adrenal crisis
- B. hypercortisolism
- C. ACTH stimulation
- D. thyroid crisis
Correct answer: A
Rationale: Abrupt withdrawal or discontinuation of prednisone, a corticosteroid, can lead to adrenal crisis. This occurs due to the suppression of the adrenal glands' natural cortisol production caused by prolonged exogenous steroid administration. Adrenal crisis presents with symptoms such as weakness, fatigue, abdominal pain, and hypotension. Hypercortisolism (Cushing syndrome) results from chronic excessive exposure to cortisol, not abrupt withdrawal. ACTH stimulation would be expected in response to low cortisol levels, not as a direct consequence of prednisone withdrawal. Thyroid crisis (thyroid storm) is associated with severe hyperthyroidism and is not directly related to corticosteroid withdrawal.
3. A 60-year-old man presents with painless hematuria. Which of the following should be the next step in the evaluation?
- A. Urinalysis
- B. Renal ultrasound
- C. Cystoscopy
- D. Intravenous pyelogram
Correct answer: C
Rationale: In a 60-year-old man presenting with painless hematuria, the next step in the evaluation should be cystoscopy. Cystoscopy is recommended to assess the cause of hematuria, particularly to rule out bladder cancer, which is more common in older individuals. Urinalysis (Choice A) can provide initial information but may not definitively diagnose the underlying cause. Renal ultrasound (Choice B) and intravenous pyelogram (Choice D) are imaging studies that may be considered later in the evaluation process but are not the initial step for painless hematuria.
4. In a 41-year-old male patient with a complex medical history diagnosed with secondary hypogonadism, which of the following health problems is the most likely etiology of his diagnosis?
- A. Type 1 diabetes
- B. Mumps
- C. An inflammatory process in the testicles
- D. Testicular trauma
Correct answer: C
Rationale: The correct answer is C: An inflammatory process in the testicles. Secondary hypogonadism in males can be caused by various factors, including an inflammatory process in the testicles. Mumps (choice B) can lead to orchitis but is less common in adults. Type 1 diabetes (choice A) is not a common cause of secondary hypogonadism. Testicular trauma (choice D) can cause primary hypogonadism but is less likely to cause secondary hypogonadism.
5. 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 eyes fixate on an object.
Correct answer: C
Rationale: Benign positional vertigo is typically triggered by changes in head position, such as bending forward or turning over in bed. This change in position leads to brief episodes of vertigo, often associated with nystagmus, which is rapid, involuntary eye movements. Pupillary changes and headaches are not typical features of benign positional vertigo, making choices B and A incorrect. Nystagmus in benign positional vertigo usually stops when the eyes fixate on an object, so choice D is also incorrect.
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