Chapter 18 Altered Mental Status, Stroke, and headache Flashcards Preview

Prehospital Emergency Care > Chapter 18 Altered Mental Status, Stroke, and headache > Flashcards

Flashcards in Chapter 18 Altered Mental Status, Stroke, and headache Deck (18)
1

a significant indication of injury or illness is known as

altered Mental Status

2

The range for altered mental status may range from

disorientation to complete unconsciousness and unresponsive to pain stimuli

3

there are two functioning components necessary for a person to stay awake. What are they

an intact reticular activating system
and at least one cerebral hemisphere

4

what is the reticular activating system (RAS)

is a set of connected nuclei in the brains of vertebrates that is responsible for regulating arousal and sleep-wake transitions.

5

Indication for pupils

head injury (unequal or fixed
drugs (pinpoint)
hypoxia (sluggish to respond to light

6

any deficiency in the functioning of the brain or nervous system is known as

neurological deficit

7

what are the signs of a neurological deficit

altered mental status
slurred or absent speech
paralysis
weakness
numbness

8

a neurological deficit will alert an emt to the possibility of a condition that is affecting the patients ______________?

central nervous system

9

a medical injury to the brain that is not related to trauma is known as

nontraumatic brain injury or stoke

10

The time of onset of a stroke is commonly defined as the last ime that a patient was seen................?

neurologically intact

11

what causes a stroke

interruption of blood to the brain

12

how does a stroke occur?

either by a blockage of an atery that is carrying build to a specific part of the brain or bleeding in the brain

13

the blockage is known as

ischemic stroke

14

the bleeding is known as

hemorrhagic stroke

15

what is a thrombus

a clot that develops at the site of an occlusion

16

a stroke resulting from thrombus is known as

thrombotic stroke

17

a clot or other matter that has traveled from anther area other the body is known as

embolus

18

when the embolus lodes in the cerebral artery and occludes it its known as

cerebral embolus