Interventional Flashcards
1
Q
how many inches equal 1mm
A
0.039
2
Q
what are microwire sizes 2
A
0.018, 0.014
3
Q
how many french = 1mm
A
3 french
4
Q
diameter in mm =
A
French/3
5
Q
french size is external or interal of a catheter?
A
external
6
Q
sheath size given by which diameter?
A
inner diameter
7
Q
how to predict size of skin hole?
A
add 2 French to sheath to calculate outer diameter
8
Q
1 french - how many mm?
A
0.3mm
9
Q
wire diameters given in?
A
inches
10
Q
wire lengths given in?
A
centimeters
11
Q
18G needle will accept what inch guidewire
A
0.038
12
Q
19G needle will accept what inch guidewire
A
0.035
13
Q
21G needle accepts what inch guidewire
A
0.018
14
Q
Standard wire length?
A
180cm
15
Q
Long wire length?
A
260cm
16
Q
bentson used for what?
A
thrombus lysing
floppy
17
Q
lunderquist used for what?
A
aortic stent grafting
Stiff!
18
Q
end hole catheter used in what type of injection?
A
hand only
19
Q
catheter needed for acute angle? 2
A
berenstein or headhunter
20
Q
catheter needed for angle of 60-120?
A
RDC or cobra
21
Q
catheter needed for obtuse angle?
A
recurved catheter.
sidewinder or sos omni
22
Q
rate 1-2ml/sec for 4-10ml volume
A
bronchial artery
intercostal artery
23
Q
rate 4-8ml/sec for 8-15 ml volume
A
carotid SC renal femoral IMA (higher vol 15-30)
24
Q
rate 5-7ml.sec for 30-40 volume
A
celiac
sma
25
rate 20-30 ml/sec for 30-40 ml volume
aorta
aortic arch
ivc
pulmonary artery
26
each french gives what ml for flow rate? (with 3F as baseline)
8ml/s
27
4F rate
16 ml/s
28
5F rate
24ml/s
29
What is a contraindication for translumbar aortic puncture?
supraceliac aortic aneurysm
30
what is typical access level for translumbar aortic puncture?
high: T12 endplate
low: L3
31
Order of preference for venous access:
RIJ>LIJ>REJ>LEJ
32
thrombin dose
0.5-0.1ml (500-1000 units)
33
Self expandable stents are good for what?
superifical locations
34
balloon expandable stents are good for what?
precise deployment
35
aortic balloon size
10-15 mm
36
common iliac balloon size
8mm
37
external iliac balloon size
7mm
38
CFA, Prox CFA balloon size
6mm
39
distal SFA balloon size
5mm
40
Indications for EVAR
AAA over 5cm
AAA growing >0.5cm in 6 months
41
landing zone requirements for EVAR
10mm long
<3.2cm wide
<60 degree of toruousity
42
iliac angulation > what angle may difficult device deployment?
over 90
43
iliac artery diameter less than what makes for difficult device deployment
less than 7mm
44
What is a crawford type 4 aneurysm?
12th intercostal space to iliac bifurcation with involvement of renal superior mesenteric and celiac arteries
45
type 1 endoleak
leak at top or bottom of graft
46
type 2 endoleak
filling of sac by feeder arery
47
type 3 endoleak
defect/fracture in graft
48
type 4 endoleak
porosity of graft
49
type 5 endoleak
endotension
50
varicocele tx
coils
51
uterine fibroid embo tx
pva or microspheres 500-1000 micrometers
52
generic trauma tx
gel foam
53
diffuse splenic trauma tx
amplatzer prox to short gastric arteries
54
pulmonary avm tx
coil
55
hemoptysis tx
pva particles >325 micrometer
56
hypervascular spinal tumor tx
onyx
57
total renal embo
absolute ethanol
58
partial renal embo
glue
59
segmental renal artery aneurysm
coils
60
main renal artery aneurysm
covered stent
61
peripartum hemorrhage
gel foam
62
uppper GI blee
egd first then coils
63
lower gi bleed
microcoils
64
large vessel permanent
coils
| amplatz
65
large vessel temporary
gelfoam
autologous clot
66
small vessel permanent 4
particles
liquid sclerosants
thrombin
ethiodol
67
small vessel temporary
microspheres
| gelfoam powder
68
medial ankle ulcer cause
venous stasis
69
dorsum foot ulcer cause
ischemic/infected ulcer
70
plantar foot ulcer cause
neurotrophic ulcer
71
what type of filter can be placed in smaller veins?
simon nitinol
72
what type of filter has a superior ned hook for retrieval?
gunther tulip
73
filter removal volume of clot that filter can come out
less than 1cm cubed
74
less than what flow for graft does fistulogram need to be performed
<600 cc/min
75
less than what flow for fistula does fistulogram need to be performed
<500cc/min
76
Where is problem usually in grafts?
at venous outflow
77
thrill/bruit in graft?
thrill at arterial anastomosis
low pitched bruit audible throughout graft
78
where is problem usually in fistulas?
venous outflow
79
thrill in fistula?
continous thrill at anastomosis
80
fistula pulsatile?
central stenosis
81
bruit in fistula?
low pitched in outflow vein
82
cold painful fingers during dialysis-
steal syndrome
83
what direction do you access grafT?
antegrade for venous problems
retrograde for arterial
84
normal pressure difference between the portal vein and IVC
3-6mm Hg
85
portal HTN pressure in PV
> 10mm Hg or pressure gradient over 5mm Hg
86
absolute contraindication for TIPS?
elevated right heart pressure (10-12)
87
what time o stent in tips?
covered
88
what do you want gradient to be in tips?
less than 12
89
two relative cotraindications for TIPS
cavernous transformation of poratl vein
| severe ecnphalopathy
90
what is normal flow in tips stent
90-190 cm/s
91
what is velocity in narrowed tips segment
>200 cm/s
92
what is low portal vein velocity
<30cm/s
93
temporal increase/decrease of what in shunt velocity is abnormal
by more than 50 cm/s
94
tips PSG of what needs treatment
>12 mm Hg
95
where is ips stenosis usually?
hepatic vein or within TIPS tract
96
what is BRTO for?
treat gastric varices
97
What segments does the left hepatic duct drain
2 and 4
98
what segments does the right hepatic duct drain
6,7, 5, 8
99
what is the most common biliary ariant?
right posterior segment brain draining into the left hepatic duct
100
hepatic ducts flow in what direction
towards the hilum
101
hepatic vein flows in what direction
cranially towards the heart
102
hepatic artery frlows in what direction
towards the periphery
103
go through what hepatic segments to perform cholecystostomy
5 and 6
104
what is kehr sign
prolonged shoulder pain s/p liver biopsy cocerning for bleed
105
what is absolute contraindicated of tace?
decompenseated liver failure
106
sterile or chemical cholecsystiis in setting of tace?
agent injected into right hepatic artery
107
yttrium 1/2 life
64 hours
108
yttrium energy
0.93 MeV
109
over what size are tumors debulked and not cured?
4 cm
110
what do o uuse to treat angiodysplasia?
microcoils or PVA particles
111
PVA particle size in GI bleed?
300-500 microns
112
drain size for clear fluid
6-8f
113
drain size for thin pus
8-10 F
114
drain size for thick pus
10-12 F
115
drain size for colelctions with debris
12 F+
116
threshold for size of diverticular absess to be drained
2cm
117
size indication for renal abscess drain
3-5cm
118
where should nephrostomy be done on transplant kidney?
anterolateral calyx of the mid to upper pole
119
projection of choice for lookin at the renals?
LAO
120
renal aneursym small segmented arteris
coils
121
renal aneursym main renal artery tx
covered stent
122
RFA of what size lung tumors is perfomred
1.5 to 5.2 cm
123
What is the classic catheter used for pulmonary artery angioq
grollman catheter preshaped 7 F
124
two relative contraindications of pulmonary angiography
elevated right heart pressures over 70 systolic 20 end diastolic; LBBB
125
where does the anterior medullary artery typically arise from?
right intercostal bronchial trunk
126
treatment for hemoptysis?
particles over 325 micrometers
127
treament for fibroids
PVA or embospheres
128
treatment for postpartum hemorrhage?
gel foam or glue
129
maxmium dose of lidocaine
4-5 mg per kg
130
maximum dose for lido with epi?
7mg/kg
