What does a value of "3" in the MEPS "PULLES" blood test mean?

My recruiter informed me today that my blood work for my over 40 phys came back as a "3" in the "PULLES" blood test. One is good, two is OK, but he said three is high. He's getting a more detailed breakdown by Friday, but I'm hoping for some additional information before then. What does "PULLES" stand for? What specifically is being tested? What does a value of "3" represent? Thanks! Bruce