Quiz about A&P Practic e

Question 1

What is the purpose of the astigmatism eye chart?

Accepted Answer

To test for defects in the refractive surface of the lens and cornea

Answer

To test for color blindness

Answer

To test for hearing loss

Answer

To test for visual acuity under low light conditions

Question 2

The results of a Snellen chart are documented as 20/60. The nurse interprets this as:

Accepted Answer

the patient can read at a distance of 20 feet what a patient with normal vision can read at 60 feet

Answer

the patient can read at a distance of 60 feet what a patient with normal vision can read at 20 feet

Answer

the patient is legally blind

Answer

the patient's vision is considered to be normal

Question 3

This eye disorder is characterized by painless, hazy vision & a cloudy/opaque area of the eye lens.

Accepted Answer

cataracts

Answer

astigmatism

Answer

glaucoma

Answer

detached retina

Question 4

Glaucoma is caused by

Accepted Answer

changes in the volume of aqueous humor and/or decreased absorption of aqueous humor

Answer

slow degenerative changes whereby the lens becomes opaque

Answer

inflammation of the cornea

Answer

insufficient intraocular pressure to promote drainage via the Schlemm Canal

Question 5

The nurse is assigned to care for a patient with a detached retina. Which one of the following assessment signs might the nurse see documented in the patient's record?

Accepted Answer

a sense of a curtain being lowered over vision

Answer

pain in the affected eye

Answer

cloudy lens

Answer

a yellow discoloration of the sclera

Question 6

What is the blind spot in the visual field?

Accepted Answer

An area where vision is not possible due to lack of photoreceptors

Answer

An area with extra photoreceptors

Answer

An area with enhanced color vision

Answer

An area with increased visual acuity

Question 7

What are rods responsible for in vision?

Accepted Answer

Noncolor vision and vision under reduced light

Answer

Color vision

Answer

Visual acuity requiring bright light

Answer

Detecting sound waves

Question 8

What leads to color blindness according to the text?

Accepted Answer

Dysfunction of one or more photopigments

Answer

Dysfunction of the vestibulocochlear nerve

Answer

Dysfunction of the cornea

Answer

What leads to color blindness according to the text?

Question 9

What is the Ishihara colorblindness test booklet used for?

Accepted Answer

Testing for colorblindness

Answer

Testing for visual acuity

Answer

Testing hearing loss

Answer

Testing for astigmatism

Question 10

What is the function of cones in the retina?

Accepted Answer

Color vision and visual acuity requiring bright light

Answer

Noncolor vision

Answer

Conducting sound to the inner ear

Answer

Detecting sound waves

Question 11

What is conductive deafness?

Accepted Answer

A failure to conduct sound waves to the inner ear

Answer

A failure to detect taste

Answer

A failure to see in low light

Answer

A failure to detect color

Question 12

What should a patient report during the Weber test?

Accepted Answer

Which ear hears the sound louder

Answer

Which eye sees better

Answer

Which color is more visible

Answer

Which taste is stronger

Question 13

What is sensorineural deafness?

Accepted Answer

A neurological failure affecting the vestibulocochlear nerve or brain

Answer

A failure to detect color

Answer

A failure to conduct sound waves to the inner ear

Answer

A failure to see in low light

Question 14

Which cranial nerve is responsible for the innervation of the superior oblique muscle of the eye?

Accepted Answer

Trochlear nerve (IV)

Answer

Oculomotor nerve (III)

Answer

Abducens nerve (VI)

Answer

Trigeminal nerve (V)

Question 15

Which nerve is a sensory nerve that conducts impulses associated with the sense of smell

Accepted Answer

olfactory (I)

Answer

optic (II)

Answer

Trigeminal (V)

Answer

Facial (VII)

Question 16

sensory nerve of the face

Accepted Answer

trigeminal

Answer

olfactory

Answer

optic

Answer

accessory

Question 17

Which nerve is a sensory nerve that conducts impulses associated with the sense of vision?

Accepted Answer

optic (II)

Answer

vagus (X)

Answer

facial (VII)

Answer

accessory (XI)

Question 18

Which cranial nerve is responsible for the innervation of the superior oblique muscle of the eye?

Accepted Answer

Trochlear nerve (IV)

Answer

Oculomotor nerve (III)

Answer

Abducens nerve (VI)

Answer

Trigeminal nerve (V)

Question 19

What is the primary function of the lens in the human eye?

Accepted Answer

To focus light onto the retina

Answer

To produce tears

Answer

To protect the eye from dust

Answer

To detect color

Question 20

Which part of the eye is responsible for controlling the amount of light that enters?

Accepted Answer

The iris

Answer

The retina

Answer

The optic nerve

Answer

The cornea

Question 21

What condition is characterized by an irregular curvature of the cornea or lens?

Accepted Answer

Astigmatism

Answer

Hyperopia

Answer

Presbyopia

Answer

Myopia

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