ATI RN
ATI Pathophysiology Exam 1
1. What signs and symptoms most likely prompted this patient to initially seek care?
- A. Malaise and fatigue
- B. Severe diarrhea
- C. Intermittent fever
- D. Dizziness and confusion
Correct answer: B
Rationale: The correct answer is B: Severe diarrhea. A patient who has recently returned from a trip to Nepal with a nongovernmental organization and is seeking care for amebiasis would most likely have been prompted by the symptom of severe diarrhea. Amebiasis is an infection caused by the parasite Entamoeba histolytica, commonly transmitted through contaminated food or water sources in developing countries like Nepal. The hallmark symptom of amebiasis is dysentery, which is characterized by severe diarrhea with blood or mucus in the stool. Malaise and fatigue (choice A) are nonspecific symptoms that may accompany many illnesses and are not specific to amebiasis. Intermittent fever (choice C) is not a typical presenting symptom of amebiasis, which primarily manifests with gastrointestinal symptoms. Dizziness and confusion (choice D) are also not typical symptoms associated with amebiasis.
2. What lab results would be noted in a client with leukocytosis?
- A. Increased white blood cell count
- B. Increased platelet count
- C. Decreased white blood cell count
- D. Decreased platelet count
Correct answer: A
Rationale: Leukocytosis is a condition characterized by an elevated white blood cell count, typically in response to infection or inflammation. Therefore, the correct answer is an increased white blood cell count (Choice A). Increased platelet count (Choice B) is not a typical finding in leukocytosis. Choices C and D, decreased white blood cell count and decreased platelet count respectively, are opposite to what would be expected in leukocytosis and are therefore incorrect.
3. Rhabdomyolysis can result in serious complications. In addition to muscle pain and weakness, a patient will complain of:
- A. paresthesias.
- B. bone pain.
- C. dark urine.
- D. diarrhea.
Correct answer: C
Rationale: The correct answer is dark urine. Rhabdomyolysis is a condition characterized by the breakdown of muscle tissue, leading to the release of myoglobin into the bloodstream. Myoglobin can cause the urine to appear dark or tea-colored, a condition known as myoglobinuria. This is a classic symptom of rhabdomyolysis. Choices A, B, and D are incorrect as they do not typically present as direct symptoms of rhabdomyolysis. Paresthesias refer to abnormal sensations like tingling or numbness, bone pain is not a primary symptom of rhabdomyolysis, and diarrhea is not a common complaint associated with this condition.
4. Following a knee injury, a football player is taking ibuprofen, a nonsteroidal anti-inflammatory drug, for the control of pain. Which drug action is most likely to result in diminished sensation of pain for the player?
- A. Inhibition of cyclooxygenase (COX) enzymes
- B. Activation of opioid receptors
- C. Blocking of NMDA receptors
- D. Stimulation of serotonin receptors
Correct answer: A
Rationale: The correct answer is A: Inhibition of cyclooxygenase (COX) enzymes. Ibuprofen works by inhibiting these enzymes, which are involved in the production of prostaglandins that mediate pain and inflammation. This inhibition leads to decreased prostaglandin production, resulting in a decrease in pain and inflammation. Choices B, C, and D are incorrect because ibuprofen does not act on opioid receptors, NMDA receptors, or serotonin receptors to control pain. It primarily exerts its analgesic and anti-inflammatory effects through COX enzyme inhibition.
5. A male patient with benign prostatic hyperplasia (BPH) is prescribed finasteride (Proscar). What therapeutic effect is expected from this medication?
- A. Reduction in prostate size and improvement in urinary symptoms
- B. Increase in urine flow and relief of urinary obstruction
- C. Improvement in erectile function
- D. Relief of pain associated with BPH
Correct answer: A
Rationale: The correct answer is A: Reduction in prostate size and improvement in urinary symptoms. Finasteride works by reducing the size of the prostate gland, which in turn helps alleviate urinary symptoms such as frequency, urgency, weak stream, and incomplete emptying of the bladder. Choice B is incorrect as while finasteride can improve urine flow indirectly by reducing prostate size, it does not directly increase urine flow. Choice C is incorrect because finasteride is not intended to improve erectile function. Choice D is incorrect as finasteride does not primarily provide relief from pain associated with BPH.
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