Description: Segment 1 The method of how to test if a blood donor and recipient are compatible is explained by intertitles and diagrams. The equipment needed is also displayed. The intertitles describe the four blood groups and how to test a patient's blood to see which blood type they are. Time start: 00:00:00:00 Time end: 00:04:27:04 Length: 00:04:27:04 Segment 2 The blood type test continues, with detailed instructions provided by the intertitles. Both good and bad methodologies are shown, as well as different results. Time start: 00:04:27:04 Time end: 00:09:58:17 Length: 00:05:31:13 Segment 3 A diagram shows the results of the blood group tests. The intertitles explain that tests should always be carried out as blood from the same group may not always be compatible, and the test for a direct match is demonstrated. The intertitles explain what to do with the results of the test. The intertitles explain that Group IV blood is universal and can be used in emergencies when there is no time for tests. Time start: 00:09:58:17 Time end: 00:15:32:03 Length: 00:05:33:11