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  1. AB Positive, AB Negative Blood | Rare Blood Type

    Less than 4% of the U.S. population have AB positive blood. AB positive blood type is known as the “universal recipient” because AB positive patients can receive red blood cells from all …

  2. Route AB1 Schedule - Regional Transportation District

    RTD provides bus and rail public transit service to Denver, Boulder, and surrounding cities in Colorado. Find station information, route maps, schedules, and fare options.

  3. Blood Types: What They Are and Mean for Your Health

    There are four main blood types: A, B, AB and O. Blood bank specialists determine your blood type based on whether you have antigen A or B on your red blood cells.

  4. Type AB Blood | Vitalant

    You’re an AB blood type — either AB-positive (AB+) or AB-negative (AB-). But what exactly does that mean for you and the patients who can receive your blood?

  5. Understanding Your Blood Type With the ABO System and Rh Factor

    Dec 7, 2025 · The ABO system has four major blood types: A, B, AB, and O. Blood types are further categorized by the presence (positive or +) or absence (negative or -) of the Rh (D) …

  6. AB Definition & Meaning - Merriam-Webster

    The meaning of AB is an abdominal muscle —usually used in plural. How to use ab in a sentence.

  7. Blood Types - A, B, AB, O, Rh - Science Notes and Projects

    Nov 28, 2023 · Learn about blood types, including A, B, AB, O and Rh+ and Rh-. See which blood type is the universal donor and universal recipient.

  8. Blood Types Explained: Health, Compatibility, and Rare Types - WebMD

    Feb 19, 2025 · For example, those with type A, B, or AB blood may have a higher risk for heart attacks. But your blood type isn’t the only factor that leads to a health ailment.

  9. AB - What does AB stand for? The Free Dictionary

    Looking for online definition of AB or what AB stands for? AB is listed in the World's most authoritative dictionary of abbreviations and acronyms

  10. Is there a best blood type? The ups and downs of A, B, AB and O …

    According to the American Heart Association (AHA), A, B, and AB blood types are associated with a greater risk of dangerous blood clotting and heart attack due to coronary artery disease than …