Final answer:
To clean blood from your hands, wet your hands, apply soap, and lather for at least 20 seconds. Rinse thoroughly and dry hands properly, informing a nurse or healthcare provider if needed.
Step-by-step explanation:
When you have blood on your hand, the Center for Disease Control and Prevention (CDC) recommends the following procedure to clean your hands effectively. Firstly, wet your hands with clean, running water (warm or cold), turn off the tap, and apply soap. Secondly, lather your hands by rubbing them together with the soap. Ensure you cover all surfaces including the backs of hands, between fingers, and under your nails for at least 20 seconds. Thirdly, rinse thoroughly using running water. Lastly, dry hands thoroughly with a clean towel or air dryer. If blood or other potentially infectious materials are present, additionally inform a nurse or healthcare provider, especially in a clinical or laboratory setting.