Reveal Asnwers: During the Quiz (Practice Mode) End of Quiz (Exam Mode) Number of questions: All 123456789101112

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1.	The crown rump length is measurable to _____ weeks and is considered to be the most accurate dating (+/- three days) during the first trimester. It is measured from the top of the ________ to the bottom of the ________ excluding the legs.

2.	At about 14 weeks the fetal heart rate should be about _____ bpm

3.	The heartbeat is seen as a regular flutter in the embryo first evident at about ____ to _____ weeks.

4.	Cardiac activity can be noted adjacent to the _________ __________

5.	For the remainder of pregnancy after 14 weeks, the average fetal heart rate is between _________ and _________ bpm.

6.	At about 8-9 weeks the fetal heart rate should be about _______ bpm

7.	The ____________ is initially seen as a thin linear structure adjacent to the yolk sac.

8.	Fetal poleThe embryonic period is between ____- ____ weeks.

9.	Care must be taken not to mistake maternal _______________ pulsations as fetal cardiac activity.

10.	Sonographic detectionEndovaginally, the embryo is usually detected by ____weeks, and it is approximately ____ mm.

11.	The fetal ______ is the first organ to function with development completed by the end of the ____th week.

12.	At about 6 weeks the fetal heart rate should be about ______-______ bpm