Final answer:
If blood contacts your mouth while performing CPR, stop and seek medical help due to infection risk, and continue with correct CPR technique trained through certification courses.
Step-by-step explanation:
When performing CPR and blood gets into your mouth, it is crucial to immediately stop and seek medical attention due to the risk of bloodborne pathogen transmission. Through proper CPR technique, one applies pressure to the sternum between T4 and T9 to manually pump blood through the heart into systemic circulation. This emergency procedure is vital, especially for brain survival, and should be performed by individuals who are well-trained and certified. CPR certification courses provided by organizations such as the American Red Cross emphasize the importance of high-quality chest compressions over artificial respiration, with a recommended compression depth of at least 5 cm and a rate of 100 compressions per minute.