Embryonic bradycardia is a fetal heart rate below ______ bpm and is usually indicative of a ________ pregnancy outcome.
170, heart failure, fetal hydrops
Embryonic tachycardia is a fetal heart rate above _______ and can lead to _______ and ________.
A less than normal amount of amniotic fluid, which can be determined by comparing GS size to the CRL.
If the MSD is _______mm smaller than the CRL, then oligohydramnios should be suspected. Poor prognosis
Another term for anembryonic pregnancy is _________, where there is a GS with no embryo visualized.
conversion of endometrium to deciduas, maintenance of the endometrium, and inhibits uterine contractility
What affects does progesterone have on the uterus in early pregnancy?
This occurs when some of the products of conception remain; blood clot may surround conceptus.
When the embryonic placenta or frondosum becomes detached, resulting in a hematoma which typically causes vaginal bleeding (this is most common cause of vaginal bleeding during pregnancy).
Pregnancies of fewer than 20 weeks when the patient has a viable embryo, documented FHT and bloody vaginal discharge. We CANNOT diagnosis this sonographically.
________ hematomas do not cause symptoms, bleeding or spotting because they are within the chorionic sac and have no communication with the endometrium.
SAB is imminent when 2 or more of the following are noted: moderate effacement of cx, cx dilation >3mm, rupture of membranes, bleeding for more than 7 days, persistent cramping
make sure the uterus is empty and there are no adnexal masses
What is the sonographer's job in evaluating a complete spontaneous abortion?
Partial evacuation of products of conception; will be diagnosed EARLY after clinical event.
A pt experienced a SAB a week prior and is back complaining of persistent, heavy bleeding. What might be going on?
air bubbles or retained bony fragments
In evaluating an incomplete ab, what would the presence of a complex collection of echoes within the endo. cavity represent?
fallopian tube, right
Where is the most common site of ectopic pregnancies? Which side is more common?
cornual, b/c of high vascularity of the uterus if it ruptures
Where is the most life threatening ectopic implantation site? Why?
What site of ectopic implantation might require a total hysterectomy if methotrexate treatment fails?
1. a normal intrauterine preg. of <5 weeks
2. an abnormal intrauterine pregnancy
3. A pseudogestational sac in a pt with an ectopic pregnancy
A gestational sac without an embryo or yolk sac on sonography may represent one of three conditions:
vaginal bleeding, empty uterus, adnexal mass, positive pregnancy test
What are the classic clinical findings associated with an ectopic pregnancy?
In the normal population, the chance of a heterotopic pregnancy is 1:_________. This changes to 1:______ for the ovulation induction population.
The presence of a ___________ is a pitfall when trying to rule out an ectopic pregnancy.
ring of fire, low
Color Doppler will show the "________" color flow around an ectopic GS, and have a ______ resistive waveform.
gestational trophoblastic disease
A proliferative disease of the trophoblast that occurs after an abnormal conception where one egg is fertilized by two sperm or a sperm with duplicated chromosomes, or a normal sperm fertilizes an egg with no chromosomes (nucleus).
Incomplete or partial mole
Mole with coexisting fetus
What are the types of Molar pregnancies?
This type of GTD results from fertilization of an ovum with no genetic material by a single sperm with duplication of the paternal material
Incomplete or Partial Mole
This type of GTD results from one set of maternal chromosomes and 2 sets of paternal chromosomes; characterized by presence of a fetus or fetal parts.
Mole with coexisting fetus
This type of GTD is not really a true GTD; it is the result of a twin pregnancy with normal development of 1 fetus and placenta, and molar degeneration of the other ovum.
This type of GTD is also known as Chorioadenoma Destruens, and is a molar pregnancy that invades the uterine wall and leads to life threatening bleeding. This is also considered the Malignant, non-metastatic form of GTD.
This is the malignant form of GTD, and will metastasize to the lung, brain, liver, bone, GI tract and skin. Elevated hCG levels in the non-pregnant patient.