Anne,
You had quite a scare with Dean's chest pains. You must feel like you are on high alert all the time.
To answer your question about platelets, the platelets that people donate last only about a week, while donated blood lasts about 6 weeks. That's why the supply varies from day to day depending on donors, and even a large hospital is more likely to have an adequate blood supply than enough platelets on hand. There is always a need for platelet donors.
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