ATI RN
Psychology 101 Final Exam
1. What is extinction and how might it be used in treating a disorder?
- A. Extinction strengthens the conditioned response by continuously pairing the conditioned stimulus with the unconditioned stimulus.
- B. Extinction is the process of eliminating a conditioned response by repeatedly presenting the conditioned stimulus without the unconditioned stimulus.
- C. Extinction is ineffective and is not used in treating disorders.
- D. Extinction is the process of intensifying the conditioned response by pairing the conditioned stimulus with a stronger unconditioned stimulus.
Correct answer: B
Rationale: The correct answer is B. Extinction is the process of eliminating a conditioned response by repeatedly presenting the conditioned stimulus without the unconditioned stimulus. This helps in reducing or eliminating undesired behaviors. Choice A is incorrect because extinction does not strengthen the conditioned response but weakens it. Choice C is also incorrect as extinction is a valid technique used in treating disorders by reducing unwanted behaviors. Choice D is incorrect as extinction does not involve intensifying the conditioned response but rather diminishing it.
2. How should a healthcare professional care for a patient with a central line to prevent infection?
- A. Change the dressing daily
- B. Monitor for redness
- C. Check the central line site every shift
- D. Flush the line with saline
Correct answer: A
Rationale: Corrected Rationale: Changing the central line dressing daily is crucial in preventing infection at the insertion site. This practice helps maintain a clean and sterile environment around the central line, reducing the risk of pathogens entering the bloodstream. Monitoring for redness (choice B) is important but may not directly prevent infection. Checking the central line site every shift (choice C) is essential for early detection of any issues but does not solely prevent infection. Flushing the line with saline (choice D) is a necessary procedure for maintaining central line patency but does not primarily prevent infection.
3. A nurse is providing teaching to a client who is receiving radiation therapy for cancer of the larynx. Which of the following instructions should the nurse include?
- A. Apply heat to the neck to relieve pain.
- B. Use a soft-bristle toothbrush to prevent gum irritation.
- C. Rinse your mouth with an alcohol-free mouthwash twice daily.
- D. Wear loose-fitting clothing to protect your skin.
Correct answer: B
Rationale: The correct answer is to use a soft-bristle toothbrush to prevent gum irritation in clients undergoing radiation therapy for laryngeal cancer. Radiation therapy can cause oral mucositis and increase the risk of gum irritation, so using a soft-bristle toothbrush is recommended to minimize trauma to the gums and oral mucosa. Applying heat to the neck is contraindicated as it can exacerbate tissue damage caused by radiation. Rinsing the mouth with an alcohol-free mouthwash is preferred over an alcohol-based one to prevent drying and irritation of the oral mucosa. Wearing loose-fitting clothing is advised to prevent friction and irritation on the skin, rather than tight-fitting clothing that may cause pressure ulcers or skin breakdown.
4. What is the condition where the arteries in the brain become blocked or narrowed, leading to reduced blood flow and a potential stroke?
- A. Cerebral atherosclerosis
- B. Coronary artery disease
- C. Pulmonary embolism
- D. Peripheral artery disease
Correct answer: A
Rationale: Cerebral atherosclerosis is the correct answer. It is a condition where the arteries in the brain become blocked or narrowed due to plaque buildup, leading to reduced blood flow and an increased risk of stroke. Choice B, Coronary artery disease, specifically affects the arteries supplying blood to the heart, not the brain. Choice C, Pulmonary embolism, involves a blockage in the pulmonary artery that affects blood flow to the lungs, not the brain. Choice D, Peripheral artery disease, refers to a condition where blockages occur in arteries outside of the heart and brain, typically affecting the limbs.
5. Which laboratory test would be most important for the nurse to assess when caring for a toddler suspected of having cystic fibrosis?
- A. Liver enzymes
- B. Serum calcium
- C. Sweat chloride test
- D. Urine creatinine
Correct answer: C
Rationale: The sweat chloride test is the primary diagnostic test for cystic fibrosis. Cystic fibrosis is characterized by abnormal transport of chloride and sodium across epithelial cell membranes, leading to increased chloride in sweat. This test is crucial for diagnosing cystic fibrosis in suspected cases. Liver enzymes (Choice A), serum calcium (Choice B), and urine creatinine (Choice D) are not specific tests for cystic fibrosis and would not provide the necessary information for diagnosis in this case.
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