Infant weight

  • Thread starter bioquest
  • Start date
  • #1
318
0
approx how much does a 3 month old infant weight, 6 month old infant etc, in the womb?
 

Answers and Replies

  • #2
318
0
Can blood cross the placenta? (Between a baby and a mom) is that why there are the standard injections for RH incompatibility?

I just read this just wanted to verify if it was true

Yes, blood can cross the placenta... if not there would be no need of the standard injections for RH incompatibility! The danger is NOT of the mother's blood attacking the baby's at the birth (when the baby is already formed and ready to go) but while in the womb. The mother's antibodies can attack the growing fetus and prevent it's developing mature red blood cells, thus causing severe anemia and failure to develop, and ultimately death if the mother's immune response is strong enough.

If the mother has Rh positive blood (any positive) then there will be no risk of Rh incompatibility, no matter what the father's type. There are other minor blood groups however which can cause a mismatch, but they're more rare.
 
  • #3
Moonbear
Staff Emeritus
Science Advisor
Gold Member
11,490
52
Just a quick note, because I don't have time to address the whole set of questions here. An infant, by definition, means post-natal (already born). You don't have any infants in the womb. They are embryos/fetuses.
 
  • #4
318
0
yah I realized that after I went to sleep last night should have changed "infant" to "fetus"
 

Related Threads on Infant weight

  • Last Post
Replies
2
Views
2K
Replies
2
Views
2K
Replies
1
Views
3K
Replies
3
Views
3K
  • Last Post
Replies
6
Views
4K
  • Last Post
Replies
18
Views
4K
  • Last Post
Replies
12
Views
3K
S
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
15
Views
11K
  • Last Post
Replies
1
Views
2K
Top