Ch. 29 Flashcards

(34 cards)

1
Q

An epidural hematoma is most accurately defined as:

-Venous lacerations that occur within the brain
-An injury caused by a damaged cerebral artery
-Bleeding between the dura mater and brain
-Bleeding between the skull and dura mater

A

Bleeding between the skull and dura mater

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2
Q

Once a cervical collar has been to a patient with a possible spinal injury it should not be removed unless:

-The patient adamantly denies neck pain
-Lateral immobilization has been applied
-Sensory and motor functions remain intact
-It causes a problem managing the airway

A

It causes a problem managing the airway

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3
Q

The hormone responsible for the actions of the sympathetic nervous system is:

-Epinephrine
-Thyroxine
-Aldosterone
-insulin

A

Epinephrine

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4
Q

The ideal procedure for moving an injured patient from the ground to a backboard is:

-The four-person log roll
-The direct patient carry
-The use of a scoop stretcher
-The clothes drag

A

The four-person log roll

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5
Q

The most reliable sign of a head injury is:

-An abnormally low blood pressure
-A pulse that is rapid and thready
-A decreased level of consciousness
-Decreased sensation in the extremities

A

A decreased level of consciousmess

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6
Q

The spinal cord is encased in and protected by the:

-Spinal cord
-Intervertebral disc
-Vertebral body
-Vertebral arch

A

Spinal canal

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7
Q

When opening the airway of a patient with a suspected spinal injury, you should use the:

-Head tilt-chin lift maneuver
-Jaw-thrust maneuver
-Tongue-jaw lift maneuver
-Head tilt-neck lift maneuver

A

Jaw-thrust maneuver

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8
Q

When placing a patient onto a long backboard, the EMT at the patient’s ______ is in charge of all patient movements.

-Lower extremities
-Head
-Waist
-Chest

A

Head

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9
Q

Which of the following interventions may be used to help reduce intracranial pressure?

-Increasing the patient’s body temperature
-Supine with the legs elevated
-30-degree elevation of the head
-Maintaining the SpO2 at 90%

A

30-degree elevation of the head

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10
Q

You should be most suspicious that a patient has experienced a significant head injury if his or her pulse is:

-Rapid
-Weal
-Slow
-Irregular

A

Slow

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11
Q

The brain, a part of the central nervous system (CNS), is divided into the:

-Cerebrum, cerebellum, and brain stem
-cerebrum, brain stem, and spinal cord
-Cerebellum, cerebrum, and spinal cord
-Spinal cord, cerebrum, and cerebral cortex

A

Cerebrum, cerebellum, and brain stem

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12
Q

As you are assessing a 24-year-old man with a large laceration to the top of his head, you should recall that:

-The scalp, unlike other parts of the body, has relatively fewer blood vessels
-Blood loss from a scalp laceration may contribute to hypovolemic shock in adults
-Any avulsed portions of the scalp should be carefully cut away to facilitate bandaging
-Most scalp injuries are superficial and are rarely associated with more serious injuries

A

Blood loss from a scalp laceration may contribute to hypovolemic shock in adults

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13
Q

A patient who experiences an immediate loss of consciousness followed by a lucid interval has a(n):

-Epidural hematoma
-Subdural hematoma
-Concussion
-Contusion

A

Epidural hematoma

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14
Q

A 44-year-old man was struck in the back of the head and was reportedly unconscious for approximately 30 seconds. He complains of a severe headache and “seeing stars”, and states that he regained his memory shortly before your arrival. His presentation is most consistent with a(n):

-Contusion
-Concussion
-Subdural hematoma
-Intracerebral hemorrhage

A

Concussion

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15
Q

A young male was involved in a motor vehicle accident and experienced a closed head injury. He has no memory of the events leading up to the accident, but remembers that he was going to a birthday party. What is the correct term to use when documenting his memory loss?

-Concussion
-Cerebral contusion
-Retrograde amnesia
-Anterograde amnesia

A

Retrograde amnesia

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16
Q

A distraction injury to the cervical spine would most likely occur following:

-A diving accident
-Blunt neck trauma
-Hyperextension of the neck
-Hanging-type mechanisms

A

Hanging-type mechanisms

17
Q

During immobilization of a patient with a possible spinal injury, manual stabilization of the head must be maintained until:

-An appropriate-size extrication collar has been placed
-The patient is fully immobilized on a long backboard
-A range of motion test of the neck has been completed
-Pulse, motor, and sensory functions are found to be intact

A

The patient is fully immobilized on a long backboard

18
Q

Your patient is a 21-year-old male who has massive face and head trauma after being assaulted. He is lying supine, is semiconscious, and has blood in his mouth. You should:

-Inert a nasal airway, assess his respirations, and give 100% oxygen
-Suction his airway and apply high-flow oxygen via a non-rebreathing mask
-Manually stabilize his head, log roll him onto his side, and suction his mouth
-Apply a cervical collar, suction his airway, and begin assisting his ventilations

A

Manually stabilize his head, log roll him onto his side, and suction his mouth

19
Q

A man is found slumped over the steering wheel unconscious and making snoring sounds, after an automobile accident. His head is turned to the side and his neck is flexed. You should:

-Gently rotate his head to correct the deformity
-Carefully hyperextend his neck to open his airway
-Apply an extrication collar with his head in the position found
-Manually stabilize his head and move it to a neutral in-line position

A

Manually stabilize his head and move it to a neutral in-line position

20
Q

You should not remove an injured football player’s helmet if:

-A cervical spine injury is suspected, even if the helmet fits loosely
-The patient has a patient airway, even if he has breathing difficulty
-He has broken teeth, but only if the helmet does not fit snugly in place
-The face guard can easily be removed and there is no airway compromise

A

The face guard can easily be removed and there is no airway compromise

21
Q

Cerebrum

A

Controls a wide variety of activities, including most voluntary motor function and conscious thought
Contains about 75% of the brain’s total volume
Divided into two hemispheres with four lobes

22
Q

Cerebellum

A

Coordinates balance and body movements

23
Q

Brainstem

A

Controls most functions necessary for life
Best-protected part of the CNS

24
Q

Spinal cord

A

Made up of fibers that extend from the brain’s nerve cells
Carries messages between the brain and the body via the grey and white matter of the spinal cord

25
Meninges
Outer layer (dura mater) is a tough, fibrous layer that forms a sac to contain the CNS Inner two layers (arachnoid mater and pia mater) contain the blood vessels
26
Cerebrospinal fluid (CSF)
Produced in a chamber inside the brain called the third ventricle Approximately 125 to 150 mL of CSF in the brain at any time Primarily acts as a shock absorber
27
Sensory nerves
Carry only one type of information from the body to the brain via the spinal cord
28
Motor nerves
One for each muscle Carry information from the CNS to the muscles
29
Connecting nerves
Found only in the brain and spinal cord Connect the sensory and motor nerves with short fibers Allow the exchange of simple messages
30
How many vertebrae in the spinal column?
33 7- cervical 12- thoracic 5-lumbar 5-sacral 4- coccygeal that are fused into 1 bone
31
Epidural hematoma
Accumulation of blood between the skull and dura mater Nearly always the result of a blow to the head that produces a linear fracture
32
Subdural hematoma
Accumulation of blood beneath the dura mater but outside the brain Occurs after falls or injuries involving strong deceleration forces May or may not be skull fracture
33
Intracerebral hematoma
Bleeding within the brain tissue itself Can occur following a penetrating injury to the head or because of rapid deceleration forces
34
Subarachnoid hemorrhage
Bleeding occurs into the subarachnoid space, where the CSF circulates Results in bloody CSF and signs of meningeal irritation Common causes include trauma or rupture of an aneurysm.