Term
|
Definition
| Does the fetus breath in utero? |
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Term
|
Definition
| Breathing motions can be seen when? |
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Term
| homogeneous and slightly more echogenic than the liver |
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Definition
| Lung tissue sonographically appears? |
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Term
| liver, portal venous system, hepatic veins, arteries, gallbladder, and bile ducts |
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Definition
| what make up the hepatobiliary system? |
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Term
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Definition
| What is a direct link to the fetal heart? |
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Term
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Definition
| largest organ in the upper abdomen |
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Term
| left lobe due to oxygenated blood coming from the umbilical vein |
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Definition
| Which lobe of the fetal liver is larger and why? |
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Term
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Definition
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Term
|
Definition
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Term
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Definition
| seen in RUQ below the left portal vein |
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Term
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Definition
| Will be posterior and to the left of the stomach |
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Term
|
Definition
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Term
|
Definition
Anechoic, fluid filled after fetus swallows amniotic fluid.
Can be seen by 11 weeks, should be visualized after 16th week |
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Term
esophageal atresia and
diminished amniotic fluid |
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Definition
| Conditions that will effect stomach filling: |
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Term
| non-insulin dependent diabetic pregnancies and duodenal atresia |
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Definition
| Conditions that cause enlargement of the stomach: |
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Term
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Definition
| Can differentiate between large and small bowel after how many weeks? |
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Term
|
Definition
| Will be centrally located in lower abdomen |
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Term
|
Definition
| Will be on periphery in lower pelvis, may contain meconium particles |
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Term
|
Definition
| A thick, sticky, greenish-black substance. It is the medical term for the newborn's first stools. |
|
|
Term
- amniotic fluid
- mucus
- fine hair
- bile
- cells that have been shed from the skin and intestinal tract
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|
Definition
| What is meconium is made up of? |
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|
Term
- kidneys
- adrenal glands
- ureters
- bladder
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|
Definition
| what makes up the urinary system? |
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Term
|
Definition
| Located on either side of spine transverse scan of fetal abdomen as early as 15 weeks |
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Term
|
Definition
| Will Echogenicity change throughout gestation? |
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Term
|
Definition
| the Renal pelvis will contain a small amount of fluid beyond how many weeks? |
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Term
|
Definition
| Abnormal renal pelvis contains how much fluid within? |
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Term
|
Definition
| above kidneys, central echogenic line surrounded by less echogenic, almost hypoechoic tissue |
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Term
|
Definition
| the fetus voids how often? |
|
|
Term
renal anomaly or
premature rupture membranes |
|
Definition
| Non-visualization of bladder with oligohydramnios suggests what? |
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Term
|
Definition
| Measurement helps predict fetal weight, helps monitor normal fetal growth, and detect IUGR and macrosomia |
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Term
|
Definition
| Measured in transverse plane of fetus at the level of the liver where the umbilical vein branches into the left portal vein branches into the left portal sinus. The j shape of the rt. and lt. portal branches and the stomach should also be visualized. |
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Term
| The right and left portal branches |
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Definition
| What forms the J shape that should be visualized at the level of the measurement of the abdominal circumference? |
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Term
| follow long axiss of the fetus towards hips |
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Definition
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Term
|
Definition
| Gender may be appreciated as early as when? But clear delineation may not be possible until when? |
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Term
|
Definition
| help assess fetal age and growth and allow dtection of skeletal dysplasias and various congenital limb malformations |
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Term
|
Definition
| the most widely measured long bone |
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Term
|
Definition
| The epiphysis is seen after how many weeks? |
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Term
|
Definition
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Term
|
Definition
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Term
|
Definition
| The tibial epiphyseal center is found after when? |
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Term
|
Definition
| transports oxygenated blood from from the placenta |
|
|
Term
| Paired umbilical arteries |
|
Definition
| return deoxygenated blood from the fetus to the placenta for purification |
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Term
|
Definition
| Umbilical vein and arteries are surrounded by this for support |
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Term
|
Definition
| Major role is to permit the exchange of oxygenated maternal blood (rich in oxygen and nutrients) with deoxygenated fetal blood |
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Term
| 15mm in fetuses > 23 weeks |
|
Definition
| mininumum diameter of placenta |
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Term
|
Definition
| A normal placenta in size should not exceed what? |
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|
Term
- allows free movement of the fetus
- maintains temperature and protection
- produced by the umbilical cord and membranes, lungs, skin, and kidneys
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|
Definition
| Amniotic fluid serves these important functions: |
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Term
| Fetal urintation into the amniotic sac |
|
Definition
| accounts for nearly the total volume of amniotic fluid by the second half of pregnancy |
|
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Term
The exchange of amniotic fluid whithin
the lungs |
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Definition
| Normal lung development is critically dependant on what? |
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Term
|
Definition
| Volume of AFI increases to what week, and then slowly diminishes? |
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Term
|
Definition
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Term
|
Definition
| If gestational sac is round take how many measurements? |
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Term
|
Definition
| If gestational sac is ovoid take how many measurements? |
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Term
|
Definition
| When the mean gestational sac diameter exceeds what, an embryo with definite cardiac activity should be seen |
|
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Term
|
Definition
| Heart activity occurs by how many week? |
|
|
Term
| anembryonic pregnancy, or blighted ovum |
|
Definition
| Absence of an embryo in an intrauterine pregnancy of 7-8 weeks is termed what? |
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Term
|
Definition
| Endovaginally, gestational sac should be seen by what level of beta hCG? |
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Term
|
Definition
| Endovaginally, by 8mm gestational sac or greater what should be seen? |
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Term
|
Definition
Endovaginally, a 6mm or less yolk sac is?
(<5.6mm) |
|
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Term
|
Definition
| Endovaginally, a 8mm yolk sac or greater is what? |
|
|
Term
| positive cardiac activity |
|
Definition
| Endovaginally, when a 7mm or greater fetal pole is seen what else should be seen? |
|
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Term
|
Definition
| Endovaginally, a CRL can be measured from what range? |
|
|
Term
|
Definition
| What is the most accurate fetal age measurement? |
|
|
Term
|
Definition
| formula to find gest. age from CRL |
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Term
|
Definition
| CRL is no longer considered accurate after how many weeks? |
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Term
|
Definition
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Term
|
Definition
| shortenened in transverse and elongated in AP |
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Term
|
Definition
| elongated in Transverse and shortened in AP |
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|
Term
| ten to thirteen weeks and 6 days |
|
Definition
| Optimal time for nuchal sonolucency measurements |
|
|
Term
3 to 11mm
Average 5-6mm
> than 11mm is abnormal |
|
Definition
| cisterna magna measurements |
|
|
Term
5mm or less up to 20 weeks
3mm or less in 1st trimester |
|
Definition
|
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Term
|
Definition
| the frontal bones of the fetal skull give in to the pressure, collapsing and giving the fetal head what shape? |
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Term
|
Definition
| This measurement is the least accurate for gestational aging and is more of a growth parameter |
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Term
|
Definition
| useful in monitoring normal fetal growth and detecting fetal growth disturbances, such as IUGR and macrosomia |
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Term
|
Definition
| includes J shape where ubilical vein branches into the left portal sinus, stomach, and transverse spine. |
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Term
|
Definition
| largest reported variability and is more affected by growth disturbances than other basic parameters |
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Term
|
Definition
| measurement from the greater trochanter to the femoral condyles |
|
|
Term
| All other fetal long bones should be measured and a targeted fetal anatomy exam should be done |
|
Definition
| If there is a 2 week or greater difference between femur length and all other parameters what should be done? |
|
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Term
|
Definition
| Distal femoral Epiphyseal (DFE) seen in gestations how old? |
|
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Term
|
Definition
| Proximal tibial epiphyseal (PTE) should be seen when? |
|
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Term
|
Definition
| which is longer the tibia or fibula? |
|
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Term
|
Definition
| Which is longer the ulna or radius? |
|
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Term
|
Definition
| Two BPD measurements at what ages? |
|
|
Term
| Growth-adjusted sonar age |
|
Definition
| the method where the fetus is categorized into the growth percentile of: small, average, large |
|
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Term
|
Definition
| Linear acceleration correlates well with the embryonic age up to how many weeks? |
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