Sed Rate refers to the Erythrocyte Sedimentation Rate (ESR), which is the rate at which the red blood cells in a test tube of blood fall over 1 hour of time. This test is not run as part of a CBC (Complete Blood Count), it is a test that must be requested separately.
Low ESR means low/no inflammation in the body. ESR can be falsly elevated (mildly so) if one is anemic.
From http://www.webmd.com/a-to-z-guides/complete-blood-count-cbc ~
MCV is Mean Corpuscular Volume, or the size of the red blood cells.
MCH is Mean Corpuscular Hemoglobin, or the amount of hemoglobin in each red blood cell.
High MCV & MCH can occur in Vitamin B12 deficiency, Folic Acid deficiency, liver disease, medication side-effects, etc. See http://www.drkaslow.com/html/blood_cell_counts.html for more details.
There are no test results that are proven to point specifically to Lyme other than the Lyme tests themselves. However, many with Lyme may find they have low or high total WBC counts (indicating inflammation and/or suppressed immune system), anemia, and/or other abnormalities. And some physicians use the CD-57 test (CD-57 is a type of white blood cell) as additional supporting evidence of Lyme Disease, although not all LLMD's agree with doing so.
I hope this helps - take care,
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Pancytopenia, chronic malabsorption/malnutrition, etc.; G-Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, Heparin (to flush PICC line), Claritin, Colloidal Silver (used topically), IV Milk Thistle, probiotics.