Laboratory investigations are a medical procedure that involves testing a sample of blood, urine, or other substance from the body. Laboratory tests can help determine a diagnosis, plan treatment, check to see if treatment is working, or monitor the disease over time. A screening test tells a provider and a person more testing may be needed, and a diagnostic test gives more definite information. Each test helps a person decide how to proceed with the life (1). Early detection of subclinical diseases allows the implementation of care pathways that can slow the progression of the disease, improving clinical outlook and quality of life, as well as the avoidance of situations that might cause worsening of body functions and acute injuries, su...