answers
Why include ant ST on lat Cspine - correct answer Pre verterbal fat stripe- widening=#, mass,
inflammation
Air gap technique - correct answer reduces scatter, increases contrast
IP 10-15 cm away from pt
mAs increase 10% for every cm gap
Not effective with high kV
why expiration with pneumo - correct answer reduces lung vol, pneumo occupies larger area- easier to
see
Spondylolisthesis - correct answer forward displacement of a vertebra commonly occurs after # (pars)
Spondylolysis - correct answer occurs when there is a fracture of the pars portion of the vertebra.
Situs inverus - correct answer organs on opposite side
dyspneic - correct answer SOB
hematuria - correct answer blood in urine
cystitis - correct answer bladder infection
judet - correct answer c: side in contact ant acetabular rim (external obl)
o: side raised post ace rim
,T/z score - correct answer T: bone loss compared to peak (30 yr old)- assess # risk, Osteoporosis
Z: compared to pts bmd of same age group + race
Normal: > -1
Osteo: <-2.5
AP knee angle - correct answer 18 cm and less: 5 caudad
19-24cm: no angle
25cm +: 5 ceph
indication of ant hip dislocation - correct answer ext rotated foot
Outlet/ inlet - correct answer oulet: around 25-30 (men) 45 women ceph for rami
inlet: 40 caudad for pelvic ring
Lat Tspine if pt has big sholders - correct answer angle 10-15 ceph
Hypovolemic shock - correct answer fluid loss 15-25%
SS: cold and clammy, thirst, cyanosis
What to do: elevate legs( trendelenberg), keep warm
Ba Enema tips - correct answer insert tube ant + sup
hang bag 46cm 18inch
24 hrs prior clear liquid diet
Stomach positions - correct answer GI position RAO: Ba in duodenal bulb, pyloric canal (also seen in rt
lat)
LPO: fundus
, Lat: ant/post stomach, retrogastric space
PA: Ba in body and pylorus/ air in fundus
AP: Ba filled fundus and duodenum/jejunum
Ba Enema views - correct answer Shisard: PA (30 caud) Rectosigmoid
LPO/RAO: hepatic/colic flex, asc colon, sigmoid
RPO/LAO: splenic, desc
Aliasing/ Moire - correct answer wavy grid artifact
common with low freq stationary non moving grid
grid strips parallel with scan direction (should be perp)
Grid kV - correct answer 90kV and less use a 8:1 grid
need 15% more dose
Varus/ Valgus - correct answer Varus move distal segment medial
Valgus move lat
OBL wrist demo - correct answer Trapezium, trapezoid, scaphoid
base 2-5 SI
Pisiform SI triquetral
Cardiogenic shock - correct answer with pulm emb, myocardial infarction: Heart not pumping enough
blood to organs
SS: chest pain, dizziness, change in consciousness, cool clammy, decr Bp, Irregular pulse
What to do: place in semi fowlers, prepare for CPR
Distributive shock - correct answer Pooling of blood in peripheral vessels, decreased Bp
3 types: neurogenic, septic, anaphylactic