Neurologic monitoring PPT-josh Flashcards Preview

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Flashcards in Neurologic monitoring PPT-josh Deck (74)
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1

Know where the common/internal.external Carotids arise:

where does the common arise from

 

  • Arotic arch (2nd take off)
  • innominant artery

 

 

2

Know where the common/internal.external Carotids arise:

what take off is first when traveling the common carotid, the external or internal?

  • external

3

Know where the common/internal.external Carotids arise:

what is the last take off when traveling the common carotid, teh external or internal?

  • internal (you could have got this via process of elimination of the last 2 cards, but good job anyways)

4

what suppies the cerebral blood supply

Circle of willis

5

Lable this

 

  1. Internal Carotid
  2. External carotid
  3. Common Carotid
  4. Brachiocephalic
  5. Subclavian

 

6

Ok so I was a little confused!!! Basically about all the take offs and where the actual comon carotids arise from!!!

So i went searching and this is what i came up with! I will ask the question then give the answers!!!!

Explain the Aortic arch and takoffs from start and finish with the internal carotids!!!

  1. Ascending  arch
  2. innominant artery
  3. brachiocephalic (or right subclavian) and Right common carotid
  4. Rght common carotid divides into right external carotid
  5. then right common carotid divides into the right internal carotid
  6. Next take off on arch is the left common carotid
  7. The left common carotid divides into the left external carotid
  8. then the left common carotid divides into the left internal carotid
  9. the last take off of arch is the Left subclavian

I hope that helps!! her diagram sucks ass!!!

7

here is a pic

 

8

What are 4 NON-invasive monitors for cerebral blood flow

  1. Intavascular tracer compounds
  2. Jugular bulb Venous O2 Sat
  3. Transcranial doppler US
  4. Cerebral Oximetry

9

Non-invasive CBF monitoring: IV tracer compounds

this allows direct measurement of what?

CBF

10

Non-invasive CBF monitoring: IV tracer compounds

Determines kinetics of wash-in and/or wash-out of an inert tracer compound (usually radioactive isotope of what)

Xenon

11

Non-invasive CBF monitoring: IV tracer compounds

so in a laymen's or josh terms what the fuck is this?

  • You shoot some IV shit usually xenon into the IV and measure somehow how it goes in and out

12

Non-invasive CBF monitoring: IV tracer compounds

________ detectors over specific brain areas measure radioactivity

Gamma

13

Non-invasive CBF monitoring: IV tracer compounds

what are some of the draw backs of this method?

  • Exposure to radioactivity
  • Cumbersome
  • Focal ischemic area may be missed
  • Just give a "snapshot" of CBF

14

Non-invasive CBF monitoring: Jugular bulb Venous O2 Saturation

Measure the _______ extraction of the brain

Oxygen

15

Non-invasive CBF monitoring: Jugular bulb Venous O2 Saturation

Requires retrograde placement of a fiberoptic probe in the ____ ______ using flouro

Jugular bulb

16

Non-invasive CBF monitoring: Jugular bulb Venous O2 Saturation

do the right and left jugular bulbs drain the same or different regions?

Different

17

Non-invasive CBF monitoring: Jugular bulb Venous O2 Saturation

it is only considered a measurement of ______ cerebral oxygenation

Global

18

Non-invasive CBF monitoring: Jugular bulb Venous O2 Saturation

In josh terms what the hell is this test

  • measures the heads cerebral O2 use, by sticking a prob in the jugular bulbs w/ flouro

19

Non-invasive CBF monitoring: transcranial doppler US

it is an inference of CBF by measuring blood flow ______ in large arteries to the brain

Velocity

20

Non-invasive CBF monitoring: transcranial doppler US

Often times it uses continuous measurment of flow through the ____ ____ Artery

Middle cerebral artery

21

Non-invasive CBF monitoring: transcranial doppler US

besides juust flow it can also alert tot he presence of what?

  • particulate emboli

22

Non-invasive CBF monitoring: transcranial doppler US

the particulate emboli will appear as a high density transient signals and a _____ in the background sounds

Chirp

23

Non-invasive CBF monitoring: transcranial doppler US

 this measurement assumed to work b/c it is thought that blood flow velocity is directly r/t ____ _____ only if the diameter of the vessel is measured and Doppler probe is constant

Blood Flow

24

Non-invasive CBF monitoring: transcranial doppler US

should this be used as the sole monitor of CBF

Nope

25

Non-invasive CBF monitoring: transcranial doppler US

what the fuck is this is Josh terms?

  • They stick a US probe on your head, measure the velocity of the blood flow through the middle of your head (middle cerebral artery)
  • If you hear a chirp then you have clots

26

Non-invasive CBF monitoring:

what is the most frequently used method?

Cerebral Oximetry

27

Non-invasive CBF monitoring: Cerebral Oximetry

Measures O2 sat of tissues under 2 sensors placed where?

On both sides of forehead

28

Non-invasive CBF monitoring: Cerebral Oximetry

measures local _____ _____ saturation?

Venous oxygen

29

Non-invasive CBF monitoring: Cerebral Oximetry

it measures local venous o2 saturation b/c _/_ to _/_ of cerebral blood volume is venous

2/3

to

4/5

30

Non-invasive CBF monitoring: Cerebral Oximetry

it is assumed to be accurate b/c is the face of cerebral ischemia, cerebral oximetry will decrease so to what?

increased O2 extraction