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 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 2 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 3 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 4 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.
Question 5 of 5
The nurse is instructing a nursing student when a new client comes to the eye clinic. The client reports suspecting a corneal abrasion. The nurse should explain what to the student nurse?
Correct Answer: C
Rationale: A slit lamp is a binocular microscope that magnifies the surface of the eye. A beam of light, narrowed to a slit, is directed at the cornea, facilitating an examination of structures and fluid in the anterior segment of the eye. This examination is used to identify disorders such as corneal abrasions, iritis, conjunctivitis, and cataracts. The other options are not used to detect corneal abrasions.