Chapter 30

A defect of the ________ results in difficulty in visual detection of color and fine detail. lens cones and rods rods cones

cones

The bony labyrinth is another name for the: outer ear. auditory nerve. middle ear. inner ear.

inner ear.

The ________ of the eye works similarly to the shutter of a camera. lens iris eyelid cornea

iris

Swimmer's ear is also known as: otitis media. otitis externa. otitis interna. None of these.

otitis externa.

Vision impairment as a result of old age and the loss of elasticity in the lens is called: diplopia. astigmatism. presbyopia. myopia.

presbyopia.

911 was dialed by a frantic mother for her three-year-old daughter who stuck a small, dried bean into her ear. Assessment shows the bean to be lodged firmly in the ear canal. When treating this patient, the AEMT would: reassure the mother and transport the patient. make one attempt to remove the bean with tweezers. have the patient follow up with her family physician. gently flush the ear canal with sterile water until the bean is dislodged.

reassure the mother and transport the patient.

An elderly woman is suffering from a closed head injury after falling down five steps. She is responsive to painful stimuli and is breathing shallowly. When evaluating her airway, you note that she has both upper and lower dentures. Her upper dentures are secure, but her lower dentures are loose. Prior to providing positive pressure ventilation, you would: re-secure the lower dentures. leave the dentures as you found them. remove the lower dentures. remove both the upper and lower dentures.

remove the lower dentures.

The sensor receptive cells in the retina that function BEST in dim light and enable night vision are the: iris. cones. pupil. rods.

rods.

The ________ contain sensors necessary for equilibrium. vestibule semicircular canals incus cochlea

semicircular canals

All of the following are symptoms of otitis media EXCEPT: pain. edema. sinus infection. pus.

sinus infection.

The external ear ends at the: auricle. external auditory canal. tympanic membrane. tragus.

tympanic membrane.

A feeling of dizziness and or whirling in space is called: purulence. vertigo. eczema. tinnitus.

vertigo.

You have arrived on the scene of an industrial plant where a female worker had a chemical splashed into her eye. She is complaining of severe pain in the eye and is flushing it with tap water over a sink. Which of the following questions is it MOST important that the AEMT ask FIRST? "Do you take any medications?" "Have you ever had an eye injury before?" "Are you wearing contact lenses?" "What is your past medical history?"

"Are you wearing contact lenses?"

While running in a parking lot, a young boy tripped and fell. He hit his face and mouth on a curb, knocking one of his top front teeth from its socket. Bleeding has been controlled and the tooth found. What instructions would you give your partner when caring for the tooth? "Wrap the tooth in dry gauze and put it in a plastic bag placed in cool water." "Scrub the tooth first to get the dirt off of it and then we will put it back in the socket." "Rinse the tooth first then put it in a cup of saline for transport." "Make sure to only touch it by its root when scrubbing the dirt off it."

"Rinse the tooth first then put it in a cup of saline for transport."

If left untreated, glaucoma can lead to what? Presbyopia Hyperopia Myopia Blindness

Blindness

Which of the following is NOT a bone of the middle ear? Malleus Stapes Cochlea Incus

Cochlea

Which of the following structures in the inner ear is the organ of hearing? Semicircular canal Cochlea Vestibule Bony labyrinth

Cochlea

A young boy riding an ATV did not see a chain stretched between two poles and hit it with his neck while traveling forward. Subsequently, he was thrown backward from the bike with significant force. He was not wearing a helmet. EMRs are with the patient and are holding manual inline spinal immobilization as well as administering oxygen. When you are assessing this patient, which of the following signs would indicate the injury that must be addressed and managed FIRST? Laceration to the forehead Open fracture to the left arm Difficulty speaking Partially avulsed ear

Difficulty speaking

A young male golfer has been struck in the right eye with a golf club. The upper and lower lids are swollen shut and ecchymotic. There are also some blood clots noted between the eyelids. Which of the following indicates that the AEMT is providing proper care to this patient? He places a numbing medication in the eye. He applies pressure to the injured eye to control bleeding. He gently opens the lids to assess for injury to the eye. He wipes blood from the face but not the eye.

He wipes blood from the face but not the eye.

Which of the following is NOT associated with the retina? Lens Photopigments Rods Cones

Lens

A three-year-old-has stuck a crayon in his nose. Assessment reveals the crayon to be deeply embedded in the right nostril with some irritation and swelling noted. His vital signs are: pulse 124, respiration 20, and SpO2 100 percent. Which of the following would be MOST appropriate when caring for this child? Non-emergent transport to the hospital Place a warm pack to the bridge of the nose Attempt removal of the crayon with forceps Oxygen via a nonrebreather at 5 liters a minute

Non-emergent transport to the hospital

What are the three tiny bones located in the middle ear? Pinnas Cerumen Cochleas Ossicles

Ossicles

Light passes to the lens of the eye through what opening? Iris Eyeball Pupil Retina

Pupil

A patient complaining of eye pain informs you that he was diagnosed with a corneal abrasion three days ago. He called 911 today because the discomfort has not yet gone away and he desires medical attention. Based on this information, which of the following is TRUE? Fluid is leaking from the posterior chamber. The clear structure that covers the pupil has been damaged. The sclera must be infected. The lens of the eye has been abraded.

The clear structure that covers the pupil has been damaged.

A 15-year-old girl was struck in the mouth with a baseball bat. She has lost her front teeth and is spitting blood. The AEMT's priority concern when caring for this patient would be: seizure activity. jaw fracture. blood loss. airway compromise.

airway compromise.

An inflammation of the thin, transparent membrane covering the visible portion of the sclera and lining the inside of the eyelids results in: corneal abrasion. lens distortion. choroiditis. conjunctivitis.

conjunctivitis.

A young boy was running with a pencil and tripped. The pencil impaled the boy's left eye and remains lodged in place. He is in his mother's arms and both are crying hysterically. Appropriate care for the eye would include: carefully removing the pencil from the eye to prevent the loss of vision, then providing immediate transport. applying ice to the affected eye to decrease pressure, swelling, and subsequent damage. applying gentle pressure to the pencil and eye to prevent movement followed by immediate transport. covering both eyes and providing immediate transport.

covering both eyes and providing immediate transport.

A patient who was hit in the face with a cloud of dust while working in an industrial setting is complaining of pain and discomfort to his left eye. While performing your secondary assessment on the eye, you note some redness to the globe but do not see any obvious foreign object. The most appropriate care you can provide to this patient would be: gently massaging the eye to promote tearing. having the patient hold the eye open during transport. carefully wiping the eye with a soft piece of sterile gauze. covering both eyes with a bandage.

covering both eyes with a bandage.

A young girl is complaining of eye pain after having sand thrown in her face by another girl at the park. When assessing her eyes, you note large particles of sand in the right eye. The sand appears to be on the conjunctiva, which also appears to be scratched and irritated. Your initial action would be to: flush the eye with clean water from a nearby sink. gently wipe the inner eye with sterile pieces of gauze. stop the tearing by applying gentle pressure to the eye. attempt to remove the larger pieces of sand using a cotton swab.

flush the eye with clean water from a nearby sink.

You have been called to a high school science lab where a male student was splashed in the eye with an alkaline solution. He is complaining of burning to the eye as well as pain. After performing the primary assessment and finding no life-threatening conditions, you would: determine the exact compound the patient was splashed with and the appropriate chemical antidote. hold the patient's eye open and begin flushing with large amounts of tap water and continue throughout transport. obtain a set of vital signs and determine if the patient is taking medications or has any past medical problems. cover both eyes with eye shields and move to the ambulance for immediate transport.

hold the patient's eye open and begin flushing with large amounts of tap water and continue throughout transport.