It can be used to look for specific conditions, like low blood counts ( anemia) or signs of an infection.īlood may seem like a simple liquid, but it’s actually rather complex. It provides a broad picture of your overall health.Ībnormal values may help detect underlying, undiagnosed health conditions that may not be causing any obvious symptoms. It is a lab test that analyzes a sample of blood, and it is useful for several reasons: A complete blood count is frequently part of a routine medical screening, like when you see your primary healthcare provider for an annual physical exam.
