Ch. 51 Test Flashcards
What biometric fetal measurements are routinely done in the 2nd and 3rd trimester
BPD, HC, AC, FL, HR, cerebellum, cistern magna, lateral ventricles
Should the sonographer routinely include evaluation of the adnexa, uterine walls and cervix on the OB sonogram
yes, to evaluate for masses, fibroids and cysts
Give a reason for evaluating each of the following fetal structures: CEREBRAL VENTRICLES
hydrocephalus
Give a reason for evaluating each of the following fetal structures: SPINE
spina bifida, sacrococcygeal teratoma
Give a reason for evaluating each of the following fetal structures: STOMACH
duodenal atresia, esophageal atresia, situs inversus, diaphragmatic hernia
Give a reason for evaluating each of the following fetal structures: HEART
4 chambers, great vessels
Give a reason for evaluating each of the following fetal structures: KIDNEYS/URINARY BLADDER
renal agenesis, hydrocephalus
Give a reason for evaluating each of the following fetal structures: UMBILICAL CORD INSERTION
omphalocele, gastroschisis
Give a reason for evaluating each of the following fetal structures: FACE
clef palate, other craniofacial malformation
Give a reason for evaluating each of the following fetal structures: CEREBELLUM
congenital anomalies
Give a reason for evaluating each of the following fetal structures: CISTERNA MAGNA
dandy walker malformation, spina bifida
Why is it important for the sonographer to have a systematic and organized approach to performing OB sonograms
ensure you document all criteria and dont forget to image a structure
If the LMP is unknown or the patient has irregular menstrual cycles, what are some other parameters that can be used to determine the due date
fundal height, doptones, lab tests, CRL, gest sac diameter
A post term pregnancy is defined as one that has gone beyond _____ weeks
42
Explain the gravidity and parity of a woman who is G5P3104
5th pregnancy, 3 full term pregnancies, 1 premature birth, 0 abortions/miscarriages, 4 living children
Fetal presentation refers to
the part of the fetus that is closest to the cervix
Fetal lie refers to
the direction the fetal body is lying in relation to the maternal spine
It is important to know which side of the baby is true left and true right in order to determine
situs
The major structures in the superior cut of the fetal cranium are the
lateral ventricles, choroid plexus, midline falx
The major structures evaluated in the mid cut of the fetal cranium are the
thalamus, CSP, BP, 3rd ventricle, falx
`The major structures evaluated in the inferior cut of the fetal cranium are the
cerebellum, cistern magna, circle of willis, cerebral pedicles
Which level of the cranium is the appropriate level for measurement of the BPD and HC
mid cut
Label the following as echogenic, hypoechoic or cystic: FALX CEREBRI
echogenic
Label the following as echogenic, hypoechoic or cystic: THALAMI
cystic