Shared Flashcard Set

Details

PHTLS- Head/Spine
PHTLS- Head/Spine
62
Medical
Professional
07/04/2010

Additional Medical Flashcards

 


 

Cards

Term
What is the leading cause of TBI in those under 65 yrs old?
Definition
MVC
Term
What is the leading cause of TBI in the elderly?
Definition
Falls
Term
The large opening in the skull that acts as a passage way for the brainstem to the spinal cord?
Definition
Foramen Magnum
Term
The most common mechanism for head trauma in kids?
Definition
Falls
Term
The rough surface on the skull that if broken can allow for the brain to easily to be injured resulting in a basilar skull fracture.
Definition
cribiform plate
Term
A bleed between the skull and the dura mater, usually by aterial laceration and has a SUDDEN onset of symptoms.
Definition
Epidural bleed.
Term
Between the arachnoid and dura mater usually caused by a ruptured vein and has a gradual onset of symptoms.
Definition
Subdural bleed.
Term
Usually between the arachnoid and the pia mater caused by a ruptures aneurysm. Presenting slowly with the worst headache ever.
Definition
Subarachnoid bleed
Term
The pressure within the cranium, or the ICP, is usually less then ______?
Definition
20 mmHg
Term
The balance of the brain, blood and the CSF determine ICP. What is the formula?
Definition
ICP= Vcsf + V blood + V brain
Term
What do we call the pressure required to perfuse the brain?
Definition
Cerebral perfusion pressure (CPP)
Term
The pressure moving the blood through the cranium is decided by what formula?
Definition
CPP = MAP-ICP
Term
What is the average CPP
Definition
70-80
Term
When you have a pt who has a change in  ICP they compensate. Usually like when you have an increase in ICP you have an increased BP. This type of relationship is called? 
Definition
autoregulation
Term
MAP must be at least ___________ to ensure adequate perfusion.
Definition

50mmHg from notes ??

 

85-95mmHg in the text book

Term
So when the ICP is going up what must also go up to ensure the brain is being perfused?
Definition
MAP
Term
CO2 is a potent ________?
Definition
vasodilator
Term
If there is herniation you need to BVM your patient at what rate?
Definition
20 breaths per min
Term
In a regular ICP patient bag at _______?
Definition
10 breaths per min
Term
If a patient presents anxious, irratated, and combative these are all indicators of a  _______?
Definition
ALOC which is the main early indicator of a head injury
Term
What are the signs of Cushings Reflex?
Definition

increased BP

Bradycardia

erractic respirations.

Term
Unable to recall events before an injury is called?
Definition
retrograde amnesia
Term
Can't recall events after the trauma is ?
Definition
Antegrade amnesia
Term
In antegrade amnesia the pt may present with repetative questioning. This is called?
Definition
perseverate
Term
Direct trauma to the brain and the associated vascular injuries is an example of a ________ brain injury
Definition
Primary
Term
Mass effect abd the subsequent elevated ICP and machanical shifting of the brain, hypoxia, and Hypotension are all examples of a _______ brain injury.
Definition
Secondary
Term
The secondary brain injuries are those most often recognized with Mass effect. These mechanisms are the result of interactions described by the ?
Definition
Monroe-Kellie doctrine
Term

The movement of the temporal lobe into the third nerve, motor tract, brainstem and RAS is called?

 

Because of it's malfunction of the third nerve results in?

Definition

Uncal Herniation

 

Blown pupil

Term
What two kinds of bruising are evidence of a basilar skull fracture?
Definition
Racoon eyes and Battle Signs
Term
What kind of fracture involves a horizontal detachment of the maxilla from the nasal floor?
Definition
Le Fort 1
Term
What kind of fracture included the right and left maxilla, the medial portion of the orbital floor and the nasal bones?
Definition
Le Forte 2
Term
What kind of fracture is also called a pyramidal fracture?
Definition
Le Forte 2
Term
What kind of fracture involves the facial bones being fracture off the skull?
Definition
Le Forte 3
Term

Vacant Stare

Delayed motor and verbal response

Confusion

Disorientation

Slurred or incoherrent speech

lack of coordination

 memory deficits are all changes following a _________

Definition
concussion
Term
A fracture of the temporal bone could result in damages to the __________
Definition
meningeal artery
Term
Epidural hematomas have a period of consciousness where the patient may be oriented, letharguc or confused. This is called the
Definition
luci interval
Term
Subdural Hematomas result from ______ bleeds
Definition
venous
Term
The largest part of each vertebrae is called the
Definition
body
Term
THe posterior part of the vertebrae is a tail-like strucutre called the ?
Definition
Spinous process
Term
The majority of spinal injuries occur at the _______ region.
Definition
cervical
Term
The skull sits on top of a C1 which is called the...
Definition
atlas
Term
C2 is called the
Definition
Axis
Term
C2 or the Axis has spur called the _________ _______ that protrudes upward like a tooth.
Definition
ondontoid process.
Term
At the level of C3 the spinal cord occupies roughly _____ % of the spinal canal
Definition
95
Term
Between 70-80% of the bodys weight rests on the ?
Definition
sacrum
Term
What nerve tracts carry SENSORY impulses from the body parts through the cord up to the brain.
Definition
Ascending
Term
What nerve tracts carry motor impulses from the brain through the cord down the body?
Definition
Descending
Term
The _______ root is for sensory impulses
Definition
Dorsal
Term
The ________ root is for motor impulses.
Definition
ventral
Term
The sensory area on the body for which a nerve root is responsible.
Definition
dermatome
Term
The diaphragm is inervated by the phrenic nerve located between levels _______
Definition
C2 and C5
Term
Over elongation of the spine scene in playground injuries and hangings are called
Definition
Distraction
Term
What results from the temporary disruption of the spinal cord functions distal to the injury?
Definition
Cord Concussion
Term
Bruising or bleeding into the spinal cords tissues is called
Definition
Cord Contusion
Term
What is the result of bony fragments or pressure on the spinal ARTERIES?
Definition
Anterior cord syndrome
Term
What are symptoms associated with anterior cord syndrome?
Definition

loss of motor function, pain,

temperature and light touch sensations

Term
What usually occurs with hyperextension of the cervical area?
Definition
Central Cord Syndrome
Term
What are the symptoms of Central cord syndrome?
Definition
Weakness in the upper extremities but normal in the lower.
Term
What is caused by penetrating injury and involves hemitransection of the cord?
Definition
Brown-Sequard Syndrome
Term
What are the symptoms of Brown Sequard Syndrome?
Definition
Loss of function on the affected side, loss of pain and temperature sensation on the opposite side of injury.
Term
The major cause of spinal injury in adult patients is
Definition
MVC
Term
The major cause of spinal injury in pediatric patients is
Definition
Falls
Supporting users have an ad free experience!