HLED 450 Week Four Post Class Questions & Answers and Rationale Latest,100% CORRECT
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HLED 450
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HLED 450
HLED 450 Week Four Post Class Questions & Answers and Rationale Latest
Chapter 15
1. During ocular examinations, the nurse keeps in mind that movement of the extraocular muscles is:
a. Decreased in the older adult.
b. Impaired in a patient with cataracts.
c. Stimulated by cranial nerves (CNs) ...
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HLED 450 Week Four Post Class Questions & Answers and
Rationale Latest
Chapter 15
1.During ocular examinations, the nurse keeps in mind that movement of the
extraocular muscles is:
a.Decreased in the older adult.
b.Impaired in a patient with cataracts.
c.Stimulated by cranial nerves (CNs) I and II.
d.Stimulated by CNs III, IV, and VI.
Rationale: “Movement of the EOMs is stimulated by three cranial nerves (CNs).
The abducens nerve (CN VI) innervates the lateral rectus muscle, which abducts
the eye. The trochlear nerve (CN IV) innervates the superior oblique muscle; and
the oculomotor nerve (CN III) innervates the rest; the superior, inferior, and
medial rectus and the inferior oblique muscles” p.277
2.The nurse is testing a patient’s visual accommodation, what is a simple
explanation of this?
a.Pupillary constriction when looking at a near object
b.Pupillary dilation when looking at a far object
c.Changes in peripheral vision in response to light
d.Involuntary blinking in the presence of bright light
Rationale: “Accommodation is adaption of the eye for near vision. The components
of accommodation that can be observed are convergence (motion toward) of the
axes of the eyeballs and pupillary constriction” (Jarvis, C. 2019. p. 279)
,3. Which of these assessment findings would the nurse expect to see when
examining the eyes of an African American patient?
a.Increased night vision
b.Dark retinal background
c.Increased photosensitivity
d.Narrowed palpebral fissures
, Rationale: “Culturally based variability exists in the color of the iris and retinal
pigmentation with darker irides having darker retinas behind them” (Jarvis, C. 2019.
P. 280)
4. A 52-year-old patient describes the presence of occasional floaters or spots
moving in front of his eyes. The nurse should:
a.Examine the retina to determine the number of floaters.
b.Presume the patient has glaucoma and refer him for further testing.
c.Consider these to be abnormal findings and refer him to an ophthalmologist.
d.Know that floaters are usually insignificant and are caused by condensed vitreous
fibers.
Rationale: “Floaters are common with myopia or after middle age as a result of
condensed vitreous fibers. {They are} usually not significant” (Jarvis, C. 2019. p.
281)
5. The nurse is preparing to assess the visual acuity of a 16-year-old patient.
How should the nurse proceed?
a.Perform the confrontation test.
b.Ask the patient to read the print on a handheld Jaeger card.
c.Use the Snellen chart positioned 20 feet away from the patient.
d.Determine the patient’s ability to read newsprint at 12 to 14 inches.
Rationale: “Place the Snellen alphabet chart in a well-lit spot at eye level. Position
the person on a mark exactly 20 feet from the chart” p. 283
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