WorksheetsOBS DOPPLER USG
Total questions: 14
Worksheet time: 5mins
1.Which of the following statement regarding techniques for obtaining the Umbilical Artery Doppler is FALSE
For the purpose of simplicity and consistency, measurements should be made in a free cord loop
Compression of the umbilical cord between the extremities or against the uterine wall is acceptable
The Umblical Arteries can be visually identified based on their number, pulsatile color flow pattern, caliber, and direction of blood flow
Which of the Umbilical artery doppler waveform below raises suspicion of acidosis
The umbilical artery doppler waveform below is indicative of
90 % of villous damage
Severe Acidosis
Critically abnormal cardiac function
Delivery is advised 32 – 34 weeks in presence of normal DV
Below statement are true with regards to ductus venosus
Its a vessel that shunts deoxygenated blood from placenta to left atrium
Absent and reversal of its a wave is indicative of acidosis
Only useful in assessment of growth restricted fetus
Delivery is advised after 34 weeks in presence of abnormal DV
Which statement is FALSE with regards to Middle cerebral artery doppler
Pulsality index is useful in assessment of fetal anaemia
Cerebroplacental ratio is a ratio of
MCA PI/ Uterine artery PI
CPR of < 1 is indicative of redistribution of blood flow in fetal hypoxia
MCA PI > 95th centile is indicative of delivery at 30 - 32 weeks.
Utilization of uterine artery doppler as screening for pre eclampsia is best done
at 11 - 14 weeks
at 16 - 18 weeks
at 20 - 22 weeks
at 34 - 36 weeks
What is the sign is being demonstrated below with regards to ductus venosus doppler
ALIASING SIGN
DOUBLE VESSEL SIGN
TARGET SIGN
The placenta specimen attached is associated with a complication of monochorionic twinning , which is
TTTS
TAPS
SELECTIVE FGR
TRAPS
Suggest timing and mode of delivery for the mentioned case senario
A 34 yrs, G2P1 at 30 weeks
Fetal scan :
EFW : 1100 g
DVP : 4cm
Umbilical artery doppler : Absent a wave
CPR < 1
DV : a wave present, DV PI : 50th centile
26 - 30 weeks via LSCS
32 - 34 weeks, via LSCS
Immediate admission for induction of labour
Immediate admission for EMLSCS
Below statement is true which regards to the placental lession shown, EXCEPT
Its a placental chorioangioma
Giant lesion may warrant in utero fetal theray
Fetal MCA doppler assessment is essential
Termination of pregnancy should be offered
Middle cerebral artery Doppler is best sampled at
YELLOW
GREEN
RED
Which condition can uterine artery Doppler help predict besides pre-eclampsia?
GDM
FGR
PRETERM
PLACENTA PRAEVIA
Name the condition described by the ultrasound snapshot
cord presentation
cervical AVM
vasa praevia
THESE ARE CLINICAL CONDITIONS IN WHICH DOPPLER TECHNIQUES GREATLY CONTRIBUTE TO DIAGNOSIS AND MANAGEMENT , EXCEPT
PLACENTA ACCRETA SPECTRUM
PLACENTA CHORIOANGIOMA
CYSTIC LUNG LESION
ABRUPTIO PLACENTA
