I did this so you can talk with others who have and are considering donating blood and asking about testing. @schlegdiesel and @ihatediabetes can share about their experiences donating blood during this time.
On Connect, members are fellow patients and caregivers, not medical professionals. Others have had the same questions as you about testing for COVID-19 and antibodies. Often patients are being asked to bring their own masks as they are in short supply at health care facilities. I don't know if the donation center would be able to fulfill that demand in NYC right now.
Here's a video about the high demand for blood during COVID
Your questions are good questions. Is this something you can ask the blood bank before you go?