The Complete Blood Count measures the quantity and high quality of pink blood cells, white blood cells, and platelets in the physique. Adult Wellness Bloodwork is recommended annually to screen for any internal medical problems or every time your pet is sick. A simple desktop blood check that tests for 2 feline retroviruses, FeLV and FIV . FeLV and FIV are transmitted by shut contact with other cats. An effective vaccine for prevention of Feline Leukemia Virus , a highly contagious and lethal retrovirus.