ATI RN
Psychotropic Medication Quiz Quizlet Questions
Question 1 of 5
A woman who has had rheumatoid arthritis for years is starting to notice that her fingers are drifting to the side. The nurse knows that this condition is commonly referred to as:
Correct Answer: B
Rationale: The correct answer is B: Ulnar deviation. In rheumatoid arthritis, ulnar deviation occurs due to inflammation and damage to the joints, causing the fingers to drift towards the ulnar side. This deviation is a hallmark feature of rheumatoid arthritis. Radial drift (A) is not a term used in this context. Swan-neck deformity (C) refers to hyperextension of the proximal interphalangeal joint and flexion of the distal interphalangeal joint. Dupuytren contracture (D) involves thickening and contracture of the palmar fascia, not finger drift.
Question 2 of 5
The area of the nervous system that is responsible for mediating reflexes is the:
Correct Answer: C
Rationale: The correct answer is C: Spinal cord. The spinal cord is responsible for mediating reflexes due to its role in processing and coordinating reflex actions. When a stimulus is detected, the spinal cord can generate an immediate response without involving the brain. This allows for rapid and automatic reactions to potential threats. The other choices, A: Medulla, B: Cerebellum, and D: Cerebral cortex, are not primarily involved in mediating reflexes. The medulla is responsible for vital functions like breathing and heart rate, the cerebellum is involved in coordination and balance, and the cerebral cortex is responsible for higher cognitive functions such as thinking and decision-making.
Question 3 of 5
A mother of a 1-month-old infant asks the nurse why it takes so long for infants to learn to roll over. The nurse knows that the reason for this is:
Correct Answer: B
Rationale: The correct answer is B: Myelin is needed to conduct the impulses, and the neurons of a newborn are not yet myelinated. Myelin is a fatty substance that insulates nerve fibers, allowing for faster and more efficient transmission of nerve impulses. In newborns, the process of myelination is incomplete, which means that the nerve impulses responsible for coordinating the complex movement required for rolling over are slower and less efficient. This delay in myelination is a normal part of infant development and accounts for the time it takes for infants to learn to roll over. Choice A is incorrect because demyelination refers to the loss of myelin, which is not the case in infants. Choice C is incorrect because while the cerebral cortex plays a role in motor function, the lack of myelination in newborns is the primary reason for the delay in rolling over. Choice D is incorrect because the cerebellum is not solely responsible for the movement, and the lack of myelination
Question 4 of 5
During an assessment of the CNs, the nurse finds the following: asymmetry when the patient smiles or frowns, uneven lifting of the eyebrows, sagging of the lower eyelids, and escape of air when the nurse presses against the right puffed cheek. This would indicate dysfunction of which of these CNs?
Correct Answer: B
Rationale: Step-by-step rationale for why the correct answer is B (Motor component of CN VII): 1. The symptoms described indicate facial nerve (CN VII) dysfunction. 2. Asymmetry when smiling/frowning, uneven eyebrow lifting, sagging eyelids are classic signs of CN VII dysfunction. 3. Escape of air when pressing on the cheek suggests weakness of the buccinator muscle innervated by CN VII. 4. CN IV (trochlear nerve) innervates the superior oblique muscle controlling eye movement, not facial expression (eliminate A). 5. CN XI (accessory nerve) innervates sternocleidomastoid and trapezius muscles, not facial muscles (eliminate C). 6. CN X (vagus nerve) controls the larynx and pharynx, while CN VII controls facial muscles (eliminate D). Summary: The correct answer is B because the symptoms align with facial nerve (CN VII) dysfunction, while the other
Question 5 of 5
The nurse places a key in the hand of a patient and he identifies it as a penny. What term would the nurse use to describe this finding?
Correct Answer: B
Rationale: The correct answer is B: Astereognosis. Astereognosis is the inability to recognize objects by touch alone. In this scenario, the patient is unable to correctly identify the key as a key, mistaking it for a penny. This indicates a deficit in tactile object recognition, which is characteristic of astereognosis. A: Extinction refers to the inability to perceive a stimulus on one side when a similar stimulus is presented on the other side simultaneously. This does not apply to the scenario described. C: Graphesthesia is the ability to recognize numbers or letters traced on the skin without visual input. This is not relevant to the patient's inability to identify the key by touch. D: Tactile discrimination involves the ability to differentiate between different textures or shapes using touch. This is not the issue presented in the scenario.