INCREASED INTRACRANIAL PRESSURE Flashcards

(29 cards)

1
Q

WHAT ARE THE 3 MAJOR INTRACRANIAL COMPONENTS?

A
  • Cerebrospinal fluid (CSF)
  • Brain tissue
  • Intravascular blood
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2
Q

is a clear fluid
circulating in the intracranial and spinal
compartments

A

Cerebrospinal fluid (CSF)

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3
Q

The brain produces about ____ ml of CSF per
day,

A

500 ML

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4
Q

CSF is secreted by ______ in each ventricle.

A

CHOROID PLEXUS

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5
Q

3 purposes of Cerebrospinal fluid (CSF)

A
  • BUOYANCY
  • PROTECTION
  • CHEMICAL STABILITY
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6
Q

allows the brain to attain considerable size
without being impaired by its own weight.

A

BUOYANCY

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7
Q

CSF completely surrounds the brain, this organ floats in the
fluid. CSF protects the brain from striking the cranium when the head is jolted

A

PROTECTION

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8
Q

– CSF is secreted into each ventricle of the brain and is
ultimately absorbed into the blood stream. It provides a means of rinsing
metabolic wastes from the CNS and homeostically regulating its chemical
environment

A

CHEMICAL STABILITY

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9
Q

brain tissue has three distinct parts:

A

the cerebrum, cerebellum, and the brainstem.

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10
Q

. An increased in intracranial bulk
due to an increase in any of the
major intracranial components: 3 KABILOG

A

BRAIN TISSUE, CSF, BLOOD

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11
Q

ANO TAWAG SA Untreated increased ICP can lead to
displacement of brain tissue

A

HERNIATION

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12
Q

INFANTS OR CHILDREN:
▪ Tense, bulging fontanel; lack of
normal pulsations -
▪ Separated cranial
sutures
▪ Macewen sign
(cracked-pot sound
on percussion)
▪ Irritability
▪ High-pitched cry
▪ Increased occipitofrontal
circumference
▪ Distended scalp veins
▪ Changes in feeding
▪ Cries when held or rocked
▪ Setting-sun sign

A

INFANTS

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13
Q

INFANTS OR CHILDREN

▪ Headache
▪ Nausea
▪ Vomiting – often without nausea – projectile
▪ Diplopia, blurred vision
▪ Seizures

A

CHILDREN

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14
Q

ANO TAWAG SA abnormal
respiratory pattern. Rhythmic waxing and
waning of both rate and depth of respiration
with brief periods of interspersed apnea

A

CHEYNE STOKES RESPIRATIONS

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15
Q

ANO TAWAG SA - (edema of the optic disc)

A

PAPILLEDEMA

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16
Q

ANO TAWAG SA MAY MOTOR ABNORMALITIES

A

Decerebrate or decorticate
posturing

17
Q

ANO NGA Diagnostic/Laboratory Test ANG GINAHIMO IF MAY INCREASED INTRACRANIAL PRESSURE AND ISA KA TAWO? 7 KABILOG

A
  1. Cerebral angiography
  2. Computed tomography (CT)
    scanning
  3. Magnetic resonance imaging (MRI) of the brain
  4. Positron emission tomography (PET) scan of the brain
  5. Transcranial Doppler studies
  6. Skull and spine x-rays
  7. Electroencephalography (EEG)
18
Q

ANO KLASE NGA DIAGNOSTIC/LABORATORY TEST INI:

is done
to visualize the cerebral
circulation (carotid and
vertebral arteries). A catheter (long, thin, flexible tube) is inserted into an artery in the
arm or leg. Using the
catheter, a technician injects a special dye into the blood vessels that lead to the brain. It is a way to produce x-ray pictures of the insides of blood vessels.

A

CEREBRAL ANGIOGRAPHY

19
Q

ANO KLASE NGA DIAGNOSTIC/LABORATORY TEST INI:

relatively accurate
and is the quickest, easiest, and least expensive method of diagnosing neurologic
problems

A

COMPUTERED TOMOGRAPHY (CT) SCANNING

20
Q

ANO KLASE NGA DIAGNOSTIC/LABORATORY TEST INI:

  • Produces images considered
    superior to the CT scan. It does not use ionizing radiation but instead relies on magnetic fields.
  • Injection of the gadolinium-based
    contrast agent is
    performed through a small an intravenous catheter that is placed in a hand vein or an arm
    vein of the patient.
A

MAGNETIC RESONANCE IMAGING (MRI) OF THE BRAIN

21
Q

ANO KLASE NGA DIAGNOSTIC/LABORATORY TEST INI:

Provides information about the function of the brain, especially glucose and oxygen
metabolism and cerebral blood flow

  • The physician injects the client with a molecule deoxyglucose, which is tagged as an isotope.
  • The isotope emits
    activity in the form of
    positrons, which are
    scanned and converted
    into a color image by a
    computer. The more
    active a given part of the
    brain, the greater the
    glucose uptake.
  • Procedure: 2 to 3 hours
A

Positron emission
tomography
(PET) scan

22
Q

ANO KLASE NGA DIAGNOSTIC/LABORATORY TEST INI:

is a noninvasive and
painless ultrasound technique that
uses sound waves to evaluate
blood flow (blood circulation) in
and around the brain

  • Valuation in evaluating cerebral
    vasospasm.
A

TRANSCRANIAL DOPPLER STUDIES

23
Q

ANO GINAGAMIT IN EVALUATING CEREBRAL VASOSPASM?

24
Q

ANO KLASE NGA DIAGNOSTIC/LABORATORY TEST INI:

  • Plain x-rays of the skull
    and spine used to
    determine bony
    fractures, curvatures,
    bone erosion, bone
    dislocation, and possible
    calcification of soft
    tissue, which can damage the nervous system.
A

SKULL AND SPINE X-RAYS

25
ANO KLASE NGA DIAGNOSTIC/LABORATORY TEST INI: Records the electrical activity of the cerebral hemispheres. * This test is performed to: a. Determine general activity of the cerebral hemispheres b. Determine the origin of seizures activity c. Determine cerebral function in pathologic conditions such as tumors, abscesses, etc.
ELECTROENCEPHALOGRAPHY (EEG)
26
WHAT ARE THE 3 TYPES OF MONITORING DEVICES?
1. Intraventricular catheter 2. Subarachnoid screw (bolt) 3. Epidural sensor
27
inserted in lateral ventricle to give direct measurement of ICP; also allows for drainage of CSF if needed. is the most accurate monitoring method. a hole is drilled through the skull. The catheter is inserted through the brain into the lateral ventricle. This area of the brain contains cerebrospinal fluid (CSF). Or the catheter is inserted through the anterior fontanelle.
1. Intraventricular catheter
28
is a hollow screw that is inserted through the hole drilled in the skull and through a hole cut in the dura mater into the sub arachnoid space. is a small and unobtrusive device, allowing for a good waveform resolution of ICP. This allows the sensor to record from inside the subdural space
2. Subarachnoid screw (bolt)
29
least invasive method; placed in space between skull and dura mater for indirect measurement of ICP
EPIDURAL SENSOR