ATI RN
Psychotropic Medication Quiz Quizlet Questions
Question 1 of 5
The nurse has completed the musculoskeletal examination of a patient's knee and has found a positive bulge sign. The nurse interprets this finding to indicate:
Correct Answer: D
Rationale: The correct answer is D: Swelling from fluid in the suprapatellar pouch. The bulge sign involves displacing fluid from one side of the knee to the other, indicating fluid accumulation in the suprapatellar pouch. This suggests a possible effusion within the joint. Choices A and B are incorrect as they do not directly relate to fluid accumulation. Choice C is incorrect as the epicondyle is not typically associated with fluid accumulation in the knee joint.
Question 2 of 5
The nurse should use which test to check for large amounts of fluid around the patella?
Correct Answer: A
Rationale: The correct answer is A: Ballottement. This test involves pushing the patella downward and looking for a fluid wave or a "floating" sensation, indicating large amounts of fluid around the patella. The other choices are incorrect because: B: Tinel sign assesses nerve compression; C: Phalen test evaluates for carpal tunnel syndrome; D: McMurray test is used for assessing meniscal injuries in the knee joint.
Question 3 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 4 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 5 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