Can a person with type O blood safely donate blood to a person having type A blood Why or why not?

Blood Components
Blood Types
Blood Type Compatibility

Whose type can you match?

Donors with type O- blood are universal red cell donors whose donations can be given to people of all blood types. Donors with types AB- and AB+ blood are universal plasma donors, while patients with type AB+ are universal red cell recipients because they can receive red cells from all types. All other donors and recipients must be safely matched, for example:

If you are	% of U.S.*	You can give to	You can receive from**
O+	38%	O+ A+ B+ AB+	O+ O-
O-	7%	O+ A+ B+ AB+ O- A- B- AB-	O-
A+	34%	A+ AB+	O+ A+ O- A-
A-	6%	A+ AB+ A- AB-	O- A-
B+	9%	B+ AB+	O+ B+ O- B-
B-	2%	B+ AB+ B- AB-	O- B-
AB+	3%	AB+	O+ A+ B+ AB+ O- A- B- AB-
AB-	1%	AB+ AB-	O- A- B- AB-

*Percentages based on U.S. population
**Donation for red cell transfusion

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Right Type for Your Type

Check the criteria that may affect your eligibility to donate blood.

Blood donation is an essential activity. Our Bloodbanks are open.

Please be informed that any person who is unwell or with risk of exposure to COVID-19 in the last 5 days will not be allowed to enter our premises due to current COVID-19 situation.

Donor who had a positive COVID-19 PCR/ Antigen Rapid Test [ART] in the last 28 days should not visit the Bloodbank. They can come back for donation 28 days after the first positive PCR or ART result.

Find out more about the precautionary measures we have taken here.

HSA has implemented a new blood donation eligibility guideline for donors who have received a Covid-19 vaccine. Please click HERE for more information.

Please check if you are eligible to donate blood before you make an appointment as the waiting period may be different due to other causes.

Check eligibility

General eligibility criteria

To donate blood, you must:

Be in general good health.
Not have had any symptoms of infection e.g. sore throat, cough, runny nose or diarrhoea for at least 1 week.
Not have had a fever in the last 4 weeks.
Not have taken medication, herbal supplements or traditional herbal remedies for at least 3 days. If you have taken antibiotics, wait at least 1 week.
Weigh at least 45 kg.
Have a haemoglobin level of at least 13.0 g/dl for males and 12.5 g/dl for females.

It may be harmful to you or the recipients if you donate blood when you are not eligible to do so.

Check the A–Z list

Last updated: 31 Dec 2018

There are eight different blood types: O+, O-, A+, A-, B+, B-, AB+ and AB-.

Each blood type has unique properties. Find yours on the chart to learn more!

If you do not know your blood type, you can find out approximately three days after you donate with us, by calling 1-866-256-6372.

BLOOD TYPES

Please choose a donation type that matches up with your blood type in order to make a maximum impact in your community. If you have questions regarding why one donation type is more beneficial for your blood type, please call 1-866-256-6372.

A+	34%	Platelets Plasma	A+, AB+	A+, A-, O+, O-
A-	6%	Double Red Cells Whole Blood	A-, A+, AB-, AB+	A-, O-
B+	9%	Platelets Plasma	B+, AB+	B+, B-, O+, O-
B-	2%	Double Red Cells Whole Blood	B-, B+, AB-, AB+	B-, O-
O+	38%	Double Red Cells Whole Blood	O+, A+, B+, AB+	O+, O-
O-	7%	Double Red Cells Whole Blood	All Blood Types	O-
AB+	3%	Platelets Plasma	AB+	All Blood Types
AB-	1%	Platelets Plasma	AB-, AB+	AB-, A-, B-, O-

Interested to learn how the blood components are used to help patients?

Can a person with type B blood donate to a person with type O

B positive red blood cells can be given to both B positive and AB positive patients. B positive patients can receive blood from B positive, B negative, O positive and O negative donors.

Can a person with O blood type receive blood from anyone?

People with O positive blood can receive donations from: O positive blood donors. O negative blood donors.

What would happen if a person with blood type O was given blood type A?

Blood transfusions between incompatible groups [such as A+ to O-] cause an immune response. This can lead to a serious transfusion reaction. The immune system attacks the donated blood cells, causing them to burst.

Can a person with blood group O Rh ve donate blood to a patient with blood group O Rh ve Why?

ABO blood types If you have type O blood, you can only get type O red blood cell transfusions. But you can give your red blood cells to people with type A, B, AB, or O blood, which is why you are sometimes called a universal donor.