Answer:
writing environmental regulations for businesses and people to follow
The blood levels should check for the acetylsalicylic acid because aspirin is a blood thinner. I know because I take only a baby aspirin for a condition I have and I still bleed easily.
Are there multiple choice options?
5 down: thymus
12 down: spleen
12 across: suppressor T
11 across: macrophage
7 down: autoimmune
8 down: bone marrow
5 down: lymph nodes
If i did miss something, comment below ^_^