Blood transfusion

Hello,

           How are you?

           May I ask about the sentences that I would like to ask when I go for blood donation?

           Are these sentences correct and understandable?

            "How many of platelets will they drop after a single platelet donation?"

            "How much hemoglobin will it drop after a sing blood donation?"

            "How long will it take until my hemoglobin come back to my baseline?"

           "What is the most number of times per year you have ever donated blood?"

             Thank you very much.

Hi!

I think I understand what you mean in each of these sentences, but they would be clearer if you said them like this:

How many platelets will I lose after the donation?

How much will my heboglobin drop after the donation?

How long will it take before my hemoglobin returns to a normal level?

What is the most times per year you have ever donated blood? OR What is the most times per year it is safe to donate blood?

Thanks for your questions! Have a good day.

Amy

Thank you very much. That makes the sentences clearer.