ATI RN
ATI Pathophysiology Exam
1. 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.
2. Muscular dystrophy is a result of an abnormality of the muscle protein:
- A. glycoprotein
- B. dystrophin
- C. troponin
- D. actinomyosin
Correct answer: B
Rationale: Muscular dystrophy is primarily caused by mutations in the gene that provides instructions for making the protein dystrophin. Dystrophin plays a crucial role in maintaining the structure of muscle fibers. Glycoprotein is a general term for proteins with sugar molecules attached, not specifically related to muscular dystrophy. Troponin is a protein involved in muscle contraction regulation, and actinomyosin is not a specific muscle protein but a complex formed during muscle contraction. Therefore, the correct answer is dystrophin.
3. Which of the following hormones do the kidneys secrete to increase red blood cell production?
- A. Erythropoietin
- B. Insulin and glycogen
- C. Testosterone
- D. Thyroid stimulating hormone
Correct answer: A
Rationale: The correct answer is A: Erythropoietin. The kidneys produce erythropoietin to stimulate the production of red blood cells. Insulin and glycogen are not hormones secreted by the kidneys; insulin is produced by the pancreas, and glycogen is a stored form of glucose. Testosterone is a hormone primarily produced by the testes in males and to a lesser extent in females. Thyroid stimulating hormone is produced by the pituitary gland to regulate thyroid function, not red blood cell production.
4. 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.
5. Which of the following would the nurse see in a client with thrombocytopenia?
- A. A decreased platelet cell count
- B. Decreased white blood cell count
- C. Increased red blood cell count
- D. An increased platelet cell count
Correct answer: A
Rationale: Thrombocytopenia is characterized by a decreased platelet cell count, leading to an increased risk of bleeding. Therefore, the correct answer is A. Choice B, a decreased white blood cell count, is not typically associated with thrombocytopenia. Choice C, an increased red blood cell count, is not a characteristic finding in thrombocytopenia. Choice D, an increased platelet cell count, is the opposite of what is observed in thrombocytopenia.
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