Access info on COVID tests, vaccines, visitor policy, hospitalization data, and FAQs.
Search by keyword or browse our list of services.
Find a provider by specialty, location, or availability.
See current studies testing new drugs, devices, and equipment to find better ways to treat and help patients.
For life-threatening emergencies, call 911 without delay.
Search by specialty and location.
Receive the highest level of care from the region's leading providers.
Find a lab or imaging facility close to you.
Find an outpatient infusion center.
Visit us to pay bills, ask billing questions, or request billing records.
Human blood is typed according to whether certain markers, called antigens, are present on the surface of red blood cells. The ABO system classifies blood as type A, B, AB, or O based on the presence or absence of the A and B antigens; the Rh system classifies blood as negative or positive based on the presence or absence of the Rh antigen (Rh factor).
If red blood cells have:
Rh blood typing determines the presence (+) or absence (–) of the Rh factor. If red blood cells:
To learn more, visit Healthwise.org
© 1995- Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
You take care of others, so take care of yourself. Let us be your partner in health, whether you're recovering from an injury, checking in for your annual exam, or enjoying an online class.
Because when you take care of yourself, everyone around you benefits.