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. Which patient is most likely to be diagnosed with complex regional pain syndrome II (CRPS II)?
- A. A patient who has experienced a spinal cord injury and reports severe, burning pain in his legs.
- B. A patient who reports severe pain in her hand following a surgery for carpal tunnel syndrome.
- C. A patient who develops pain in his foot following a fracture and immobilization with a cast.
- D. A patient who experiences chronic pain and swelling in his arm following a brachial plexus injury.
Correct answer: D
Rationale: Complex regional pain syndrome II (CRPS II) typically occurs after an injury to a peripheral nerve. In this case, a brachial plexus injury involves damage to the nerves that control muscles in the arm and hand, leading to chronic pain and swelling. Choices A, B, and C describe pain related to other conditions such as spinal cord injury, carpal tunnel surgery, and fracture immobilization, which are not typically associated with CRPS II.
3. A female client with bone metastases secondary to lung cancer is admitted for palliative radiation treatment and pain control. The client is currently experiencing pain that she rates at 9 out of 10. Which of the following nonpharmacologic treatments is most likely to be a useful and appropriate supplement to pharmacologic analgesia at this point?
- A. Teaching the client guided imagery and meditation
- B. Initiating neurostimulation
- C. Heat therapy
- D. Relaxation and distraction
Correct answer: D
Rationale: In the scenario described, the client is experiencing high pain levels, rated at 9 out of 10. Relaxation and distraction techniques are effective nonpharmacologic interventions for managing pain. Teaching the client guided imagery and meditation (Choice A) can also be beneficial; however, in this acute situation of severe pain, relaxation and distraction techniques are more likely to provide immediate relief. Initiating neurostimulation (Choice B) and heat therapy (Choice C) may not be suitable for immediate pain relief in this scenario and are not as commonly used for managing high pain levels in palliative care settings.
4. A patient with benign prostatic hyperplasia (BPH) is prescribed finasteride (Proscar). What outcome should the nurse expect to observe if the medication is effective?
- A. Increased urinary frequency and urgency
- B. Decreased prostate size
- C. Increased prostate size
- D. Decreased blood pressure
Correct answer: B
Rationale: The correct answer is B: Decreased prostate size. Finasteride is a medication used to reduce the size of the prostate gland in patients with BPH. By decreasing the size of the prostate, symptoms such as urinary frequency and urgency are improved. Choice A is incorrect as the medication aims to decrease, not increase, urinary symptoms. Choice C is incorrect because the goal of finasteride is to reduce, not increase, the prostate size. Choice D is also incorrect as finasteride is not indicated for lowering blood pressure.
5. A client with a diagnosis of depression has been prescribed a medication that ultimately increases the levels of the neurotransmitter serotonin between neurons. Which process will accompany the actions of the neurotransmitter in a chemical synapse?
- A. Two-way communication between neurons is permitted, in contrast to the one-way communication in electrical synapses.
- B. Communication between a neuron and the single neuron it is connected with will be facilitated.
- C. The neurotransmitter will cross gap junctions more readily.
- D. More neurotransmitters will cross the synaptic cleft and bond with postsynaptic receptors.
Correct answer: D
Rationale: When serotonin levels increase, more neurotransmitters will cross the synaptic cleft and bind with postsynaptic receptors, facilitating enhanced communication. Option A is incorrect because chemical synapses, unlike electrical synapses, are unidirectional. Option B is incorrect because neurotransmitters impact communication with multiple neurons, not just a single connected neuron. Option C is incorrect because neurotransmitters cross the synaptic cleft, not gap junctions.
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