What is the weight criteria for blood donors?

The correct answer regarding the weight criteria for blood donors is that individuals must weigh 110 pounds or more. This weight threshold is established for safety reasons. People who weigh below this limit may not have enough overall blood volume to safely donate blood without risking their health. The blood donation process can lead to temporary reductions in blood volume and pressure, and having a minimum weight criterion helps ensure that donors can withstand this process and recover without complications.

In a clinical setting, this standard helps protect the well-being of donors while also ensuring an adequate supply of blood for those in need. Other options, which suggest higher weight limits, are not necessary since 110 pounds provides a sufficient baseline for safe donation practices.