ATI LPN
Timby's Introductory Medical-Surgical Nursing Thirteenth, North American Edition
Chapter 41 : Introduction to the Sensory System Questions
Question 1 of 5
A client is having problems with dizziness and complains of the 'room spinning.' The physician performs the caloric stimulation test. The nurse knows that a diminished response in one eye during the caloric stimulation test is indicative of what?
Correct Answer: A
Rationale: During the caloric stimulation test, a diminished response in one eye is significant for an inner ear disorder such as M?©ni?¨re disease. It does not signify a middle ear disorder, an outer ear disorder, or age-related macular degeneration.
Question 2 of 5
A client has been referred to an ophthalmologist for suspected macular degeneration. The nurse knows to prepare what test for the physician to give the client?
Correct Answer: C
Rationale: Clients with macular problems are tested with an Amsler grid. It is made up of a geometric grid of identical squares with a central fixation point. The examiner instructs the client to stare at the central fixation spot on the grid and report if they see any distortion of the squares. Clients with macular problems may say some of the squares are faded or wavy. An Ishihara polychromatic plate, visual field, or slit lamp test will not diagnose macular degeneration.
Question 3 of 5
What is located in the cochlea of the inner ear?
Correct Answer: D
Rationale: The fluid motion created by the vibrating stapes excites the nerve endings in the sensitive sound receptors of the organ of Corti located in the cochlea. The labyrinth is the name for the inner ear, and the semicircular canals and vestibulocochlear nerves are other components of the inner ear.
Question 4 of 5
The nursing student is taking an anatomy and physiology class. What anatomical structure equalizes air pressure in the middle ear?
Correct Answer: A
Rationale: The eustachian tube extends from the floor of the middle ear to the pharynx and is lined with mucous membrane. It equalizes air pressure in the middle ear. The other options do not equalize pressure in the middle ear.
Question 5 of 5
Audiometry is testing that measures hearing acuity precisely. Who does the nurse know can perform audiometric testing?
Correct Answer: C
Rationale: Audiometry is done by an audiologist. Audiometric testing measures hearing acuity precisely. The other options can screen hearing, but they cannot do audiometric testing.