ATI RN
Pathophysiology Exam 1 Quizlet
1. When a Tae Kwon Do (TKD) master applies downward pressure just above the elbow joint on an attacker who immediately collapses to the ground, which reflex is applicable to this example?
- A. Golgi tendon reflex
- B. Myotatic reflex
- C. Withdrawal reflex
- D. Crossed-extensor reflex
Correct answer: A
Rationale: The Golgi tendon reflex is the correct answer. This reflex protects the muscle and tendons from excessive force by causing the muscle to relax. In this scenario, the downward pressure applied just above the elbow joint triggers the Golgi tendon reflex, resulting in the attacker's collapse. The other options are incorrect: - The myotatic reflex (also known as the stretch reflex) is responsible for contracting a muscle in response to its stretch, not relaxing it. - The withdrawal reflex is a spinal reflex that moves a body part away from a painful stimulus, not directly related to the scenario described. - The crossed-extensor reflex is a reflex that occurs on the opposite side of the body in response to a withdrawal reflex, which is not the case in this situation.
2. A patient is taking a statin for hyperlipidemia. What important instruction should the nurse provide to the patient?
- A. Take the medication at night to avoid muscle pain.
- B. Take the medication in the morning to ensure it works throughout the day.
- C. Avoid consuming alcohol while taking this medication.
- D. Take the medication with a high-fat meal to increase absorption.
Correct answer: A
Rationale: The correct answer is to instruct the patient to take the medication at night to avoid muscle pain. Statins are known to potentially cause muscle pain or weakness; taking the medication at night can help reduce the incidence of these side effects. Option B is incorrect because the timing of statin administration is not related to its effectiveness throughout the day. Option C is a general precaution when taking medications but not the most important instruction specific to statins. Option D is incorrect as taking the medication with a high-fat meal can actually decrease its absorption.
3. A patient was sneezing frequently after a few days of allergic rhinitis, and she noticed her eye became red. She denies any trauma, eye pain, or visual disturbance. Physical examination reveals a subconjunctival hemorrhage. Which statement is accurate pertaining to this case?
- A. The hemorrhage will resolve without treatment within 2 weeks.
- B. The patient should be referred for immediate ophthalmologic examination.
- C. Corticosteroid eye drops will be prescribed to reduce the bleeding.
- D. Antibiotic eye drops will be prescribed to prevent infection.
Correct answer: A
Rationale: The correct answer is A: 'The hemorrhage will resolve without treatment within 2 weeks.' Subconjunctival hemorrhage typically resolves on its own without treatment. It is a self-limiting condition that does not require specific intervention. Choice B is incorrect as immediate ophthalmologic examination is not necessary for subconjunctival hemorrhage unless there are other concerning symptoms or risk factors present. Choice C is incorrect because corticosteroid eye drops are not typically used for subconjunctival hemorrhage. Choice D is also incorrect as antibiotic eye drops are not indicated since subconjunctival hemorrhage is not due to an infection.
4. A nurse is administering testosterone to a patient with hypogonadism. What outcome indicates that the treatment is having the desired effect?
- A. Increased libido
- B. Increased muscle mass
- C. Improved secondary sexual characteristics
- D. Decreased sperm count
Correct answer: C
Rationale: The correct answer is C: 'Improved secondary sexual characteristics.' Testosterone therapy in patients with hypogonadism typically leads to improved secondary sexual characteristics, which include increased muscle mass and libido. While increased libido (choice A) and increased muscle mass (choice B) are effects of testosterone therapy, they are more specific outcomes related to secondary sexual characteristics. Decreased sperm count (choice D) would not be an expected outcome of testosterone therapy for hypogonadism, as testosterone is essential for sperm production.
5. A 56-year-old woman has been experiencing memory loss and confusion for the past year. The client is diagnosed with Alzheimer's disease. Which finding is most characteristic of this disease?
- A. Neurofibrillary tangles in the brain
- B. Demyelination of neurons in the brain
- C. Accumulation of beta-amyloid plaques
- D. Formation of Lewy bodies
Correct answer: C
Rationale: The correct answer is C: Accumulation of beta-amyloid plaques. Alzheimer's disease is characterized by the accumulation of beta-amyloid plaques in the brain. These plaques are formed from the buildup of beta-amyloid protein fragments between nerve cells. Choice A, neurofibrillary tangles, are a hallmark of another neurodegenerative disease called Alzheimer's disease. Choice B, demyelination of neurons, is more characteristic of diseases like multiple sclerosis. Choice D, formation of Lewy bodies, is associated with Lewy body dementia, not Alzheimer's disease.
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