Reporting critical values
Over-ordering tests ("shotgun testing")
Iin the Library of Congress classification system, materials on public health laboratories can be found in the RA 428--RA 428.5 range.
Books on pathology are most often found between RB 1 and RB 214. Clinical pathology and laboratory technique are covered in the RB 37--RB 56.5 range.
If you can't find the materials you need, be sure you contact a librarian to help you with your search.