Blood group A individuals have the A antigen on the surface of their RBCs, and blood serum containing IgM antibodies against the B antigen. Therefore, a group A individual can receive blood only from individuals of groups A or O (with A being preferable), and can donate blood to individuals with type A or AB.
At some point, every pregnant woman wonders if it is safe to travel. The American College of Obstetrics and Gynecology (ACOG) suggests that the best time to travel is between the 14th and 28th weeks of pregnancy, or the second trimester. The mother-to-be is usually over her morning sickness and tiredness by then. It is also the time during the pregnancy when complications are least likely to occur. However, it is possible to be safe while traveling during the 34th week of pregnancy. Significance Traveling at week 34 and beyond is especially risky because it is very close to the motherâs due date--only six weeks away.
Most doctors do not mind pregnant women flying during their first trimester; it is actually during the third trimester that pregnant women are told not to fly as it could trigger labor. Flying during the first trimester may be unadvisable if it involves too much stress which could harm the baby and the mother. It is also unadvisable if the woman has had a history of miscarriages or ill health. Flying may cause air sickness which pregnant women are particularly vulnerable to.