Did a covid test on the 5th day of presence and when filling out the form I do not understand what to write in lab namber, what to enter there?

[Ilya]

Did a covid test on the 5th day of presence and when filling out the form I do not understand what to write in lab namber, what to enter there?

[Nikita]

I wrote antigen or atk Who is the name of the hotel, who is his name.

[Julia]

So advised. But in my opinion, it's not too important.