Blood Flashcards
(14 cards)
What are the four main blood types in the ABO system?
A, B, AB, and O.
Which blood type is known as the universal donor?
O negative (O-).
Which blood type is known as the universal recipient?
AB positive (AB+).
What is the Rh factor in blood typing?
The Rh factor is a protein found on red blood cells. If the protein is present, the blood type is positive (+); if absent, it is negative (-).
What is the most common blood type worldwide?
O positive (O+).
Which blood type is the rarest worldwide?
AB negative (AB-).
How common is O negative (O-) blood in the general population?
O negative blood is present in about 2-3% of the population.
How common is AB positive (AB+) blood in the general population?
AB positive blood is present in about 3-5% of the population.
Why is knowing your blood type important?
It is important for blood transfusions, organ transplants, and pregnancy (to prevent Rh incompatibility).
What blood type can donate to someone with blood type A?
Blood types A, O (O can donate to both A and B), and AB.
What is the likelihood of having O positive blood in the U.S.?
About 37% of the population in the U.S. has O positive blood.
What is the significance of Rh incompatibility in pregnancy?
If an Rh-negative mother is carrying an Rh-positive baby, the mother’s immune system might attack the baby’s red blood cells, causing complications. This can be prevented with an injection of Rh immunoglobulin.
What is the role of blood plasma?
Blood plasma carries water, nutrients, hormones, and waste products. It also plays a key role in clotting and immune defense.
What is the most common blood type in the U.S.?
O positive (O+), followed by A positive (A+).
