This page is currently a work in progress--however, here are several links that may be of help in reading your cat's lab results.
What Do Those Lab Tests Mean?
How To Review Your Blood Test Results
Glossary of Laboratory Terms
Normal Values for Dogs and Cats
Urinalysis Testing
Urinalysis Dipstick Interpretation
Urinalysis: Testing a Urine Sample
Veterinary Clinical Pathology Database
Chemistry Profiles
Chemistry Panels and Tests
Nationwide Laboratories Test Interpretation Index
Complete Blood Counts (CBC)
Hematology
Ancillary Notes On Clinical Hematology
Some interesting info on animal blood types and blood transfusions:
Transfusion Medicine in Dogs and Cats
Midwest Animal Blood Services
Antech Diagnostics Test Guide