Blood Type
Definition
ABO blood group and Rh factor (e.g., A+, B-, O+, AB-).
Why It Matters
Blood type is critical in several medical contexts: - Transfusion medicine - Matching blood types prevents severe reactions - Pregnancy - Rh incompatibility can affect fetal health - Emergency care - Quick access to blood type information - Organ donation - Compatibility matching - Surgery preparation - Blood availability planning
How It's Obtained
User-entered in Apple Health. This should be validated from official medical records, as incorrect blood type information could be dangerous in emergencies.
Reference Values
| Blood Type | Population Frequency (approximate) |
|---|---|
| O+ | ~37% |
| A+ | ~36% |
| B+ | ~8% |
| AB+ | ~3% |
| O- | ~7% |
| A- | ~6% |
| B- | ~1% |
| AB- | ~1% |
Frequencies vary by ethnic background and geographic region.
Use Cases
- Emergency preparedness - Quick reference in medical emergencies
- Medical ID - Part of essential health information
- Family health records - Tracking inherited traits
Important Notes
- Only enter your blood type if you know it from verified medical testing
- Incorrect blood type information could be harmful
- Blood type can be determined through simple medical testing