CH 47 - 1ST TRIMESTER

Question 0

CLINICIANS AND SONOGRAPHERS USE ______ TO DATE PREGNANCY. WHICH IS THE 1ST DAY OF ___.

Answer 0

GESTATIONAL AGE

LMP

Question 1

THIS IS USED BY EMBRYOLOGIST USE THIS TO ASSESS GA.

Answer 1

CONCEPTUAL AGE

Question 2

THE FIRST 4 WKS THE CONCEPTUS IS CALLED __.

Answer 2

ZYGOTE

Question 3

IN WEEKS 4 -10 THE CONCEPTUS IS CALLED AN _____.

Answer 3

EMBRYO

Question 4

AFTER 10 WEEKS THE EMBRYO IS CALLED THE ______.

Answer 4

FETUS

Question 5

WHAT DAY IS A MATURE OVUM RELEASED?

Answer 5

DAY 14

Question 6

HOW LONG DOES FERTILIZATION OCCUR AFTER OVULATION?

Answer 6

WITHIN 1 - 2 DAYS

Question 7

THE ___ FOLLICLE COLLAPSES AND BECOMES THE ____ ____ WHICH SECRETES 2 HORMONES; ____ & ___.

Answer 7

GRAAFIAN
CORPUS LUTEUM
PROGESTERONE & ESTROGEN

Question 8

A FERTILIZED OVUM BECOMES A __ AND RAPIDLY DIVIDES TO FORM THE 16 CELL ___; THEN FORMS THE ______.

Answer 8

ZYGOTE
MORULA
BLASTOCYST

Question 9

TROPHOBLASTIC CELLS SECRETE _____ _____ ____ AND STIMULATES MATERNAL PREGNANCY RESPONSES.

Answer 9

HUMAN CHORIONIC GONADOTROPIN

Question 10

TROPHOBLAST FORMS THE ____ ____ (EARLY GESTATIONAL SAC).

Answer 10

PRIMARY VILLI

Question 11

THE SECONDARY YOLK SAC IS FORMED AROUND ____ DAYS MENSTRUAL AGE.

Answer 11

23

Question 12

A NML GA SAC CAN BE TRANSABD WHEN THE HCG LEVEL IS ? IT CAN BE SEEN EV AT?

Answer 12

> OR = TO 1800mIU

500 mIU

Question 13

WHAT mIU/ml LEVEL INDICATES PREGNANCY AND WILL RULE OUT ECTOPIC?

Answer 13

1000-2000

Question 14

HCG DOUBLES EVERY?

Answer 14

3.5 DAYS

Question 15

GA SAC SIZE & HCG LEVELS INCREASE PROPORTIONATELY UNTIL ____ WEEKS.

Answer 15

8

Question 16

DURING THE 5TH WK THE GS GROWS….

Answer 16

1 MM PER DAY IN EARLY PREGNANCY

Question 17

HOW IS A 5 WK GS POSITIONED IN THE FUNDUS?

Answer 17

ECCENTRICALLY

Question 18

DURING THE 5TH WEEK WHAT SHOULD BE VISUALIZED?

Answer 18

DOUBLE DECIDUAL SAC SIGN

Question 19

AT 5 TO 5.5 WKS THE GS SHOULD MEASURE?

Answer 19

> 12MM

Question 20

WHAT ARE THE FCTNS OF THE SECONDARY YOLK SAC?

Answer 20

• PROVIDE NUTRIENTS
• DEVELOP THE PRIMITIVE GUT
• HEMATOPOISES

Question 21

HOW IS THE YOLK SAC ATTACHED TO THE EMBRYO?

Answer 21

BYA STALK BETWEEN THE AMNION AND CHORION.

Question 22

WHEN IS THE YOLK SAC REABSORBED AND NO LONGER SEEN?

Answer 22

AT 12 WEEKS

Question 23

WHEN DOES ORGANOGENESIS BEGIN?

Answer 23

AT 5 WEEKS.

Question 24

HOW EARLY CAN HEART MOTION BE DETECTED?

Answer 24

5.5 WEEKS AND CRL AT 3MM

Question 25

WHAT IS THE TRILAMINAR DISC FOLD AND WHEN DOES THIS OCCUR?

Answer 25

IT IS WHEN THE EMBRYO FOLDS INTO A C SHAPE THAT FORMS THE EMBRYONIC HEAD, CAUDAL PORTIONS, AND LATERAL FOLDS.
STARTS AT 6 WEEKS

Question 26

THE MIDGUT ELONGATES AND HERNIATES INTO THE BASE OF THE UMBILICAL CORD. WHEN DOES IT RETURN TO THE FETAL ABDOMEN?

Answer 26

10-11 WEEKS

Question 27

BY ____ WEEKS THE ECHOGENIC BOWEL RETURNS TO THE FETAL ABDOMEN.

Answer 27

12 WEEKS

Question 28

AT 6 WEEKS THE BRAIN HAS 3 PRIMARY VESICLES. WHAT ARE THEY?

Answer 28

PROSENCEPHALON
MESENCEPHALON
THOMBENCEPHALON

Question 29

THE RHOMBENCEPHALON FURTHER DIVIDES INTO 2 SEGMENTS:

Answer 29

METENCEPHALON (CEPHALIC PORTION)

MYELENCEPHALON (CAUDAL PORTION)

Question 30

AT ___ WEEKS THE CHORIOD PLEXAS & FALX IS SEEN.

Answer 30

9

Question 31

WHEN IS THE MOST ACCURATE GESTATIONAL DATING DETERMINED?

Answer 31

DURING THE 1ST TRIMESTER

Question 32

WHAT ARE THE 2 PARAMETERS USED FOR GA?

Answer 32

GS SIZE

CRL

Question 33

HOW DO YOU GET THE MEAN SAC DIAMETER?

Answer 33

L+W+H/3

Question 34

2 OVA AND 2 SPERM =

Answer 34

DIZGOTIC TWIN (70% OF TWIN PREGNANCIES)

Question 35

1 OVA AND 1 SPERM =

Answer 35

MONOAMNIOTIC

50% MORTALITY RATE