ATI RN
Pathophysiology Exam 1 Quizlet
1. During an assessment of a male client suspected of having a disorder of motor function, which finding would suggest a possible upper motor neuron (UMN) lesion?
- A. Hypotonia
- B. Hyperreflexia
- C. Muscle atrophy
- D. Fasciculations
Correct answer: B
Rationale: Hyperreflexia, or exaggerated reflexes, is a common sign of an upper motor neuron (UMN) lesion. An UMN lesion indicates damage to the central nervous system pathways that control movement. Hypotonia (choice A) refers to reduced muscle tone, which is more indicative of lower motor neuron lesions. Muscle atrophy (choice C) suggests long-standing denervation or disuse of muscles. Fasciculations (choice D) are involuntary muscle contractions that can be seen in lower motor neuron lesions, like in amyotrophic lateral sclerosis (ALS), rather than UMN lesions.
2. What should the nurse include in patient education regarding the effectiveness of oral contraceptives?
- A. Oral contraceptives are highly effective when taken correctly but not 100% foolproof.
- B. Oral contraceptives may take some time to reach full effectiveness after starting.
- C. Oral contraceptives can be less effective if taken with certain antibiotics.
- D. Taking oral contraceptives with food does not significantly affect their efficacy.
Correct answer: C
Rationale: The correct answer is C. Oral contraceptives can be less effective when taken with certain antibiotics due to potential drug interactions that may reduce contraceptive efficacy. It is crucial for patients to be aware of this to consider additional contraceptive measures when prescribed antibiotics. Choice A is incorrect because while oral contraceptives are highly effective when taken correctly, they are not 100% foolproof. Choice B is incorrect as oral contraceptives may take some time to reach their full effectiveness after starting. Choice D is also incorrect as taking oral contraceptives with food does not significantly affect their efficacy.
3. What property is found in clients with metastatic cancer?
- A. Tumors that are well encapsulated
- B. Tumors with slow, stable growth
- C. Cells that are genetically stable
- D. Cells invading local tissue and overrunning neighboring cells
Correct answer: D
Rationale: Metastatic cancer is characterized by cells that invade local tissue and overrun neighboring cells. Therefore, the correct answer is D. Choices A, B, and C are incorrect because metastatic cancer is associated with aggressive behavior where cells invade and spread to other parts of the body, rather than being well encapsulated, growing slowly, or being genetically stable.
4. In which patient would the manifestation of a headache be a sign of a serious underlying disorder?
- A. A 55-year-old man with new onset of headaches that are worse at night and reported mood swings according to his family
- B. A 30-year-old woman with a unilateral throbbing headache with photophobia and nausea
- C. A 60-year-old man with his head feeling full and throbbing and muscle aching around his neck and shoulders
- D. A 40-year-old woman who experiences food cravings, gets irritable, and then develops a pulsatile-like headache on the right side of her head
Correct answer: A
Rationale: The correct answer is A. New onset headaches in older adults, especially if worse at night, may indicate a serious condition like a brain tumor. Choice B describes symptoms commonly seen in migraines. Choice C describes tension-type headaches. Choice D describes symptoms of a menstrual migraine which is not typically associated with a serious underlying disorder.
5. 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.
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