Exam 49: The Normal First Trimester

The embryonic heart begins to beat at __________ days.

Maternal serum hCG levels in a normal intrauterine pregnancy at less than 7 weeks should increase by doubling every _______________.

A sonogram at 10 weeks of gestation demonstrates a cystic area within the posterior cranium. This appearance most likely represents which one of the following?

The beta hCG levels plateau and subsequently decline, whereas the gestational sac continues to grow, after _________ weeks.

To calculate the mean sac diameter of a gestational sac, which one of the following formulas should be used?

In early pregnancy, the gestational sac size grows at a rate of _____ mm/day.

The crown-rump length measurement may be used up through the ______ gestational week.

The villi on the myometrial side of the conceptus are known as which one of the following?

Using a transvaginal approach, the first structure visualized within a gestational sac is which one of the following structures?

Which of the following ages refers to the length of time calculated from the first day of the last normal menstrual period to the point at which the pregnancy is being assessed?

The blastocyst typically enters the uterus ___________ days after fertilization.

The cavity in which the fetus exists is called the _________ cavity.

In transabdominal scanning, a normal gestational sac can be consistently demonstrated when the beta hCG level is _________ mega international units per milliliter (mIU/ml).

After fertilization of the ovum, the corpus luteum begins to secrete which of the following hormones?

The anechoic center of a 5- to 6-week gestational sac represents which one of the following?

Which one of the following laboratory tests is used to indicate pregnancy when the values are elevated?

In the first trimester, herniated bowel will return within the abdominal cavity by the _________ week.

Transvaginal imaging of the female pelvis uses which of the following planes?

Which one of the following terms refers to a multiple pregnancy within one chorionic sac?

With transvaginal ultrasound, an abnormal pregnancy is suspected when visualizing the yolk sac fails with a minimum mean sac diameter (MSD) of ______ millimeters (mm).