OB II Chapter 21, 22, 23, 24 and 25 Flashcards
Combination of nonimmune fetal hydrops and a cystic hygroma
lymphangiectasia
Incomplete fusion of the neural tube resulting in a cleft spinal cord
Myeloschisis
Failure of one or both testes to descend from the abdomen into the scrotal sac
cryptorchidism
Tumor composed of fat
Lipoma
Complete exposure of the spinal cord due to lack of spinal fusion
Rachischisis
How many ossification centers surround the neural canal?
three
Fetal position that offers a true sagittal view of the spine
Prone
The simplest form of spina bifida is
Spina bifida occulta
Anomalies frequently seen in the fetus relating to spina bifida involve the fetal _______________
Cranium
Fetuses affected by spina bifida aperta commonly demonstrate_____________________
Bilateral club feet
Scoliosis is an abnormal _________ curvature of the spine
lateral
A sacrococcygeal teratoma most commonly images as a protrusion between
the anus and the coccyx
Suspicion of open neural tube or abdominal wall defect is elevated with a MSAFP of
2.4 MoM
The neural tube completely closes by
Day 26
Term for slow heart rate
bradyarrhythmia
Malformation that is part of tetralogy of fallot
Valvular stenosis due to pulmonary stenosis
Congenital malformation in which the pulmonary artery arises from the left ventricle
Transposition of the great arteries
What type of defect has the lower portion of the atrial septum absent without a ventricular defect?
Partial atrioventricular septal defect
Where is the ventricular septal defect located in a VSD type DORV
Subaortic
Anomaly in which heart defect demonstrates reversed flow in the ductus arteriousus
Interrupted aortic arch
Spinal sonogrpahy is useful in the normal infant until approximately how many months of age?
5 to 6
What is the sonographic appearance of the spinal canal?
Anechoic
In what region is the spine larger?
Cervical and lumbar
How can one visually identify the lumbosacral junction?
Identify the kyphosis of the sacrum
What is the etiology of spinal dysraphism?
Inadequate or improper fusion of the neural tube
Which open spinal dysraphism presents as a flat plate of neural tissue flush with the skin surface?
Myelocele
On a sonogram of a patient with tethered cord, the conus medullaris will terminate at or below the level of which vertebral body?
L3
What closed spinal dysraphism are collections of fat and connective tissue that appear at least partially encapsulated and have definite connection with the spinal cord?
Spinal lipoma
What is the best transducer to routinely use to evaluate the neonatal spine?
Linear array
Both great arteries arise from the right ventricle with a VSD and pulmonary stenosis. The same process can occur with the left ventricle with associated AV and semilunar valve stenosis
Double outlet right ventricle (DORV)
Common benign tumor found in either ventricle
Rhabdomyoma
Without motion
akinetic
Apex of the heart points to the right
Dextrocardia
Also known as hypoplastic right heart. Underdevelopment of the right ventricle and hypoplasia of the tricuspid valve
Right ventricular hypoplasia