CPT (Certified Phlebotomy Technician) Practice Exam

CBC stands for Complete Blood Count. This test measures the number of red and white blood cells, as well as platelets, in a person's blood. Option A is incorrect because it does not include a count of all the various components of blood. Option C is incorrect because it adds an unnecessary word, "comprehensive", which is not typically used in medical terminology for this type of test. Option D is incorrect because it changes the word "count" to "cell", which does not accurately reflect the purpose of the test.