The San Diego Blood Bank has hit a dangerously low blood supply because of supply chain issues during the holidays and is urging the community to donate. "If that blood is not available for a hospital patient on the table it can be detrimental outcomes," said Claudine Van Gonka, the director of community relations for the San Diego Blood Bank. The San Diego Blood Bank typically likes to have a seven day supply of all blood types. As of Monday, they had about a day and a half supply. Van Gonka said hitting a one day supply is considered a critical level. She said donations tend to slow down during the holidays but this year supply chain issues have created another obstacle. "We are completely out of the special kits that are used specifically for people who donate double reds which is essentially two donations in one," she said. MORE: https://www.cbs8.com/article/news/local/san-diego-blood-bank-at-low-blood-supply/509-771b8d98-2821-4604-918c-857bd4ef2a8a