Placental Hormones

Question 1

Progesterone in pregnancy secreted by

Answer 1

Cl of pregnancy till 8-10weeks

Then rest placenta

Question 2

Cl of pregnancy is maintained by

Answer 2

Hcg

Question 3

Life Span of cl of pregnancy

Answer 3

10-12weeks

Question 4

Precursor of progesterone

Answer 4

Maternal LDL

Question 5

2reactions catered by progesterone

Answer 5

Decidual reaction

Arias Stella reaction

Question 6

Most specific hormone formed by placenta

Answer 6

Hpl

Question 7

Hpl 
Is it protein
Secreted via /formed from
Time of release 
Aka

Answer 7

Single polypeptide
Synctitio
At 3weeks after fertilisation
Human chorionic somatotropin

Question 8

Hcg is

How many subunit

Answer 8

Glycoprotein

Alpha and beta

Question 9

Alpha subunit of hcg is similar to

But more similar to

Answer 9

Lh
TSH
FSH

LH diff of only 8 aa

Question 10

Hormone with highest carbohydrate content

Answer 10

Hcg

Question 11

Hcg is secreted by

Answer 11

Synctitio

Question 12

Hcg is found in serum as early as

Answer 12

8 days after fertilisation / d22 / 5-6days before missed period

Question 13

Estrogen dependent on fetus for

Answer 13

Dheas secreted by fetal adrenal gland

Which is utilised by placenta to synthesise estrogen

Question 14

Initiation of labour is dependent on

Answer 14

Estrogen

In turn dependent on ACTH

Question 15

If fetal adrenal gland is hypoplastic

Answer 15

Then post dated pregnancy

Question 16

Most common estrogen during preg

Most specific during pregnancy

Answer 16

E2

E3

Question 17

Most sensitive to detect hcg

Answer 17

FIA >RIA

Question 18

Levels of hcg max

Min

Answer 18

At 8 - 10 weeks (70)days
At 16weeks
Then remain same

Question 19

Max hcg level

Answer 19

10^ 5 iu/l

Question 20

Hcg disapperas from blood after
Normal preg
Abortion
Partial molecomplete mole

Answer 20

1-2weeks
2_4
7
9

Question 21

Hpl starts forming after

Answer 21

3 weeks of fertilisation

Then increases steadily

Question 22

Hpl max at

Answer 22

36 weeks of preg /

Question 23

Hpl production at term

Answer 23

1gm /day

Question 24

T1/2 of
Hcg
Hpl

Answer 24

24-48 hrs

10 -30 min

Question 25

Doubling time of hcg / more than / equal to 66%

Answer 25

48 hrs /

Question 26

Critical titre of hcg is min value in iul at which you can see 100,% gestational sac
TVs
Tas

Answer 26

• 1500 iu/l

6500 iu/l />5000iu/l

Question 27

Function of hcg similar to

Answer 27

LH

Question 28

Ist stimulus to leydig to relase testosterone by

Answer 28

Hcg

Question 29

Which hornone is immunosuppressant in preg

Answer 29

Hcg

Question 30

Hcg is used in which tesr

Answer 30

Tripleand quaadraple

Question 31

Triple

Answer 31

Alpha FP

Hcg

U estriol

Question 32

Quadraple

Answer 32

Triple+ inhibin b

Question 33

Which is the connecting stalk bw placenta and fetus

Answer 33

Umbilical cord

Question 34

Normal length of uc

Answer 34

30-100cm

Question 35

Early iul how many vessels are in uc

Answer 35

4

Question 36

pH in uc

Answer 36

7.2

Question 37

Which vessel disappers later in life

Answer 37

Right umbilical vein

Question 38

What has folds of hrobokom

Answer 38

Uc

Question 39

What is Wharton’s jelly

Answer 39

Connective tissue of uc

Question 40

What is Vasa previa

Answer 40

Vilamentous attachment of cord ie if cord is attached to membranes first before placenta

Question 41

What is complication of injury in Vasa previa

Answer 41

Fetal blood loss