Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MRS370 > Week 13- angio 1 > Flashcards

Week 13- angio 1 Flashcards

1
Q

what anatomy are we concerned about when doing a cerebral angio?

A 
COW:
vertebral A
Basilar A
Posterior cerebral A
Posterior communicating A
Middle cerebral A
Internal carotid A
Anterior communicating A
Anterior cerebral A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

indications for a cerebral angiogram

A

stenosis

aneurysm

AVMs

Tumour

Clots

Stroke

Stenting

Dissections

A-V fistula

Embolism
Thrombosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

cerebral angio contraindications

A

contrast allergy

internal bleeding in the brain

renal failure

metformin

increased creatinine

thyroid pathology
multi-nodule goitre

prior Nuc Med Thyroid scan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

risks/complications of cerebral angios

A

Large dose of radiation may cause cancer

Allergic reaction to contrast

Nursing mothers should wait at least 24 hours after procedure

Diabetes/kidney disease may compromise kidney function in excreting the contrast

Blood vessel damage from the instruments in the blood vessel

Blood clot may form

Embolism may occur if material is dislodged from the arterial wall

Risk of stroke

Arterial punctures causing a bleed in the brain (haemorrhage)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

patient prep for cerebral angio

A

informed consent

blood tests and medication analysis

NBM 12 hours prior

area site prepared

attired properly (hospital gown etc.)

no deodorsnt/ perfume use

Potentially pre-op CXR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

the seven criteria that defines informed consent

A
  1. Competence to understand and to decide
  2. Voluntary decision making
  3. Disclosure of material information
  4. Recommendation of a plan
  5. Comprehension of terms and (4)
  6. Decision in favour of a plan, and
  7. Authorization of the plan
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

cerebral angio pre-imaging procedure

A 
sterile set up
contrast ready
ECG plates
puncture site exposed
organisations of catheters/wires
ECG and oxygen sat monitor
Defib ready
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what does the radiographer need to do for the patient during imaging of cerebral vessels

A
  • regular observations of ECG
  • record BP and oxygen sats regularly
  • regular conversation with patient
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

cerebral angio post care instructions

A
  • remove catheter
  • fem stop on puncture wound if needed
  • regular patient observation
  • pt instructed not to laugh
  • clean up puncture site
  • pt to drink lots of fluid
  • pt given contact phone number if anything is concerning
  • follow up call by staff 24hrs after
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what anatomy is covered in a peripheral angio

A 
R subclavian A
R + L axillary A
L + R brachial A
R + L internal thoracic A
Abdomiinal A
descending thoracic A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what anatomy is covered in a peripheral angio of the arm

A 
superficial palmer arch A
R/L radial A
R/L ulnar A
R/L anterior recurrent A
R/L brachial A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what anatomy is covered in a peripheral angio of the legs

A 
R/ L common iliac A
Abdominal A
L/R common iliac A
L/R internal iliac A
L/R external iliac A
L/R fem A
L/R deep fem A
L/R popliteal A
L/R anterior tibial A
L/R posterior tibial A
L/R fibula A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

indications for a peripheral angio

A

Stenosis

aneurysm

AVMs

Tumour

Clots

Stroke

Stenting

Dissections

A-V fistula

Embolism
Thrombosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

where is contrast administered in a peripheral angio

A

carotid/basilar A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

where is contrast injected in a cerebral angio?

A

carotid/basilar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

contraindications for a peripheral angio

A

contrast allergy

internal bleeding in the brain

renal failure

metformin

increased creatinine

thyroid pathology
multi-nodule goitre

prior Nuc Med Thyroid scan

17
Q

risks/complications of a peripheral angio

A

Large dose of radiation may cause cancer

Allergic reaction to contrast

Nursing mothers should wait at least 24 hours after procedure

Diabetes/kidney disease may compromise kidney function in excreting the contrast

Blood vessel damage from the instruments in the blood vessel

Blood clot may form

Embolism may occur if material is dislodged from the arterial wall

Risk of stroke

Arterial punctures causing a bleed in the brain (haemorrhage)

Nerve damage

18
Q

patient prep for peripheral angio

A

informed consent

bloods and medication analysis

NBM

drink clear liquids

prepare puncture sites

patient attired (gown etc.)

pre-op CXR if necessary

19
Q

what should happen during a peripheral angio

A
  • regular observations of ECG
  • record BP and oxygen sats regularly
  • regular conversation with patient
20
Q

peripheral angio post care iinstructions

A
  • remove catheter
  • fem stop on puncture wound if needed
  • regular patient observation
  • pt instructed not to laugh
  • clean up puncture site
  • pt to drink lots of fluid
  • pt given contact phone number if anything is concerning
  • follow up call by staff 24hrs after
21
Q

what are collateral arteries?

A

Collateral Arteries is a term used to describe the group of arteries that the body uses to bypass an occlusion.

22
Q

how do collateral arteries arise?

A

from a chronic occluding process

23
Q

how are collateral arteries ‘fed’?

A

Collateral arteries are fed from the proximal source of the occlusion or nearby arteries

24
Q

what is angiogenesis

A

Physiological process through which new blood vessels form from pre-existing vessels

25
Q

when does angiogenesis become a problem?

A

Angiogenesis becomes a problem when new blood vessels form to “feed” blood to tumours

26
Q

how is angiography used to locate angiogenesis when it is feeding a tumour

A

-Angiography is used to locate the “feeding” vessel and then occlude it to deprive the tumour of blood

27
Q

how are arteriovenous malformations formed?

A

AVM’S occur when Angiogenesis development gets out of control or doesn’t develop properly

28
Q

what is an AVM

A

abnormal growth pattern of angiogenesis

29
Q

symptoms of AVMs

A
  • Poor Coordination
  • Muscle weakness
  • Vertigo
  • Numbness
  • Gradual increasing pain
  • Memory loss
  • Prominent vein
  • Heart Failure (cardiac AVM)
  • Breathlessness (Pulmonary AVM)

Symptoms vary depending on location

30
Q

do AVMs have capillaries and how does this affect surrounding tissues

A

AVM’s do not have capillaries, therefore surrounding tissues are deprived of nutrients, and CO2 is not removed from active tissues

31
Q

what occurs from an AVM (think about the connection to other vessels)

A

Abnormal connection results in fragile vessels coping with high pressure arterial blood and low pressure venous blood

32
Q

what happens to the abnormal vessels when AVMs occur

A

Due to the pressure gradient in the abnormal vessels bleeding can occur. Depending on the location of the haemorrhage, the symptoms can be an annoyance to being fatal

33
Q

what is the difference between a tumour and an AVM when imaging with contrast?

A

AVM: will see the venous and arterial system highlighted

Tumour: will see either the arterial OR venous system highlighted

MRS370 (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions