A healthy woman donated a double unit of platelets by apheresis. The product is shown (Fig. 1, right) next to a unit from a different donor. A culture of the donor's sample was negative.​

 F1.small.gif

  1. What could cause this product to have this appearance?
  2. Can this product be used for transfusion?
  3. How should the donor be counseled?

What Is Your Guess? Read the article here ​​for the answers.