Short Answer
A-negative blood contains the A antigen but does not have the Rh (D) antigen.
Detailed Explanation
People with A-negative blood:
- Can donate red blood cells to A-negative, A-positive, AB-negative and AB-positive recipients.
- Can receive red blood cells from A-negative and O-negative donors.
Because Rh-negative blood groups are less common, A-negative donors are valuable for patients requiring Rh-negative blood.
Key Points
• A antigen present.
• Rh antigen absent.
• Rare compared to A-positive.
• Important for Rh-negative patients.
❤️ Rare blood groups become priceless when patients urgently need them.
