ATI RN
ATI Pathophysiology Exam 2
1. Which of the following disturbances would cause a client to experience gout?
- A. Serotonin receptors
- B. Uric acid metabolism
- C. Liver function
- D. Cardiac function
Correct answer: B
Rationale: Gout is caused by a disturbance in uric acid metabolism, leading to the accumulation of uric acid crystals in joints. Serotonin receptors (Choice A) are not related to gout. Liver function (Choice C) is important for metabolism but is not directly linked to gout development. Cardiac function (Choice D) is primarily related to the heart's functioning and not associated with gout.
2. A 21-year-old male is brought to the ED following a night of partying in his fraternity. His friends found him 'asleep' and couldn't get him to respond. They cannot recall how many alcoholic beverages he drank the night before. While educating a student nurse and the man's friends, the nurse begins by explaining that alcohol is:
- A. A water-soluble compound that is easily absorbed by the gastric lining of the stomach.
- B. Very lipid-soluble and rapidly crosses the blood–brain barrier.
- C. Able to reverse the transport of some substances to remove them from the brain.
- D. Very likely to cause sedation and therefore the client just needs to sleep it off.
Correct answer: B
Rationale: The correct answer is B. Alcohol is very lipid-soluble and rapidly crosses the blood–brain barrier, leading to its effects on the central nervous system and causing symptoms like sedation and unconsciousness. Choice A is incorrect because alcohol is not water-soluble; it is lipid-soluble. Choice C is incorrect as alcohol does not reverse the transport of substances from the brain. Choice D is incorrect as sedation from alcohol is not a reason to just 'sleep it off' in cases of alcohol poisoning, which can be life-threatening and requires medical attention.
3. A patient suffers from dysmenorrhea. Which oral medication will be prescribed that has the ability to provide physiological actions on the neuroendocrine control of ovarian function?
- A. Estrogen
- B. Progestins
- C. Naproxen
- D. Ibuprofen
Correct answer: B
Rationale: Progestins are prescribed for dysmenorrhea as they help reduce menstrual pain by inhibiting ovulation and decreasing the production of prostaglandins. Estrogen (Choice A) is not typically used alone in dysmenorrhea treatment as it can worsen symptoms. Naproxen (Choice C) and Ibuprofen (Choice D) are nonsteroidal anti-inflammatory drugs (NSAIDs) commonly used to relieve pain associated with dysmenorrhea, but they do not directly affect the neuroendocrine control of ovarian function like progestins do.
4. While assessing a critically ill client in the emergency department, the nurse notes on the cardiac monitor an R-on-T premature ventricular beat that develops into ventricular tachycardia (VT). Immediately, the client became unresponsive. The nurse knows that based on pathophysiologic principles, the most likely cause of the unresponsiveness is:
- A. metabolic acidosis that occurs spontaneously following any dysrhythmias.
- B. interruption of the blood/oxygen supply to the brain.
- C. massive cerebrovascular accident (CVA) resulting from increased perfusion.
- D. a blood clot coming from the heart and occluding the carotid arteries.
Correct answer: B
Rationale: The correct answer is B. Ventricular tachycardia (VT) can disrupt the normal heart function, leading to a decreased cardiac output. This decreased output can interrupt the blood supply to the brain, causing the client to become unresponsive. Metabolic acidosis (Choice A) is not the most likely cause of unresponsiveness in this scenario. A massive cerebrovascular accident (CVA) (Choice C) would not result from increased perfusion. A blood clot occluding the carotid arteries (Choice D) may lead to a stroke but is not the most likely cause of sudden unresponsiveness in this situation.
5. Why is it important for a patient to take a new oral contraceptive at the same time each day?
- A. Taking the medication at the same time each day helps maintain stable hormone levels, which is critical for preventing pregnancy.
- B. Taking the medication at the same time each day reduces the risk of breakthrough bleeding.
- C. Taking the medication at the same time each day ensures consistent absorption and effectiveness.
- D. Taking the medication at the same time each day is important, but missing a dose occasionally is not a concern.
Correct answer: A
Rationale: The correct answer is A. Taking oral contraceptives at the same time each day is crucial for maintaining stable hormone levels, which is essential for the contraceptive's effectiveness in preventing pregnancy. Choice B is incorrect because the primary reason for taking the medication consistently is hormone level stability, not specifically to reduce breakthrough bleeding. Choice C is incorrect as it focuses on absorption and effectiveness, which are important but do not address the main reason for consistent timing. Choice D is incorrect because missing doses can impact contraceptive efficacy, making consistent timing essential for optimal protection.
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