Whole Blood Donation
Some white blood cells live less than a day, but others live much longer. Also, blood is either Rh-positive or Rh-negative. So if you have type A blood, it's either A positive or A negative. Which type you are is important if you need a blood transfusion. And your Rh factor could be important if you become pregnant - an incompatibility between your type and the baby's could create problems.
Blood tests such as blood count tests help doctors check for certain diseases and conditions. They also help check the function of your organs and show how well treatments are working. Problems with your blood may include bleeding disorders , excessive clotting and platelet disorders.
If you lose too much blood, you may need a transfusion. On this page Basics Summary Start Here.
- What's Blood?;
- Ready or Not: Why Treating Children as Small Adults Endangers Th;
- Determinanten der Staatsverschuldung in den Staaten der EWWU (German Edition).
Learn More Related Issues Specifics. See, Play and Learn Videos and Tutorials. Research Clinical Trials Journal Articles. Resources Reference Desk Find an Expert.
For You Children Teenagers. Start Here. America's Blood Centers. Related Issues.
Blood Groups and Red Cell Antigens [Internet].
Blood Types American Red Cross. Videos and Tutorials. An adequate and reliable supply of safe blood can be assured by a stable base of regular, voluntary, unpaid blood donors. Regular, voluntary, unpaid blood donors are also the safest group of donors as the prevalence of bloodborne infections is lowest among these donors. Around Many patients requiring transfusion, however, do not have timely access to safe blood and blood products. Every country needs to ensure that supplies of blood and blood products are sufficient and free from HIV, hepatitis viruses and other infections that can be transmitted through transfusion.
Whole Blood Donation Explained | Red Cross Blood Services
The transfusion is commonly used for supportive care in cardiovascular surgery, transplant surgery, massive trauma, and therapy for solid and haematological malignancies. In low- and middle-income countries, it is used more often for management of pregnancy-related complications, childhood malaria complicated by severe anaemia, and trauma-related injuries.
Adequate and reliable supply of safe blood can only be assured through a stable base of regular, voluntary, unpaid blood donors.
They are the safest group of donors because the prevalence of bloodborne infections is lowest among them. WHO urges countries to develop national blood systems based on voluntary, unpaid blood donations to achieve the goal of self-sufficiency in safe blood and blood products. The average blood donation rate is more than 7.
Type A blood converted to universal donor blood with help from bacterial enzymes
About 12 blood centres in countries report collecting a total of million blood donations. The median annual blood donations per centre is 23 in high-income countries, as compared to 8 in upper-middle-income countries, 4 in lower-middle-income countries and 1 in low-income countries. The median blood donation rate in high-income countries is This compares with All donated blood should always be screened for HIV, hepatitis B, hepatitis C and syphilis prior to transfusion. Yet 13 countries are not able to screen all donated blood for one or more of these infections.