https://tube.blueben.net/videos/watch/a7cfb8f4-6185-40ba-b070-8dc5e00e48a3 How Blood Typing Works Three drops reveal your blood type. Antibodies in anti-A, anti-B and anti-D serums make matching red blood cells clump together. The pattern reveals whether your blood is A, B, AB or O, and Rh positive or negative. Tue, 10 Nov 2026 11:56:00 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.blueben.net https://tube.blueben.net/client/assets/images/icons/icon-96x96.png https://tube.blueben.net/videos/watch/a7cfb8f4-6185-40ba-b070-8dc5e00e48a3 All rights reserved, unless otherwise specified in the terms specified at https://tube.blueben.net/about and potential licenses granted by each content's rightholder.