Type O plasma, containing both anti-A and anti-B antibodies, can only be given to O recipients. The antibodies will attack the antigens on any other blood type. Conversely, AB plasma can be given to patients of any ABO blood group due to not containing any anti-A or anti-B antibodies.
Tummy Time: The Basics. You can start tummy time immediately after the birth. Lie back, place your baby on her tummy on your chest and enjoy some skin-to-skin under a blanket. This can be your very first session of tummy time and can happen when your baby is just a few minutes old.
Most babies accustomed to back-sleeping do not begin to roll freely until about 5 to 6 months of age, according to the SIDS and Kids website. The AAP encourages parents to give their baby supervised tummy time with their infant playing on his tummy for three to five minutes at a time, two to three times daily.