The page below is a sample from the LabCE course Routine Venipuncture. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Routine Venipuncture (online CE course) »
How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 94 CE courses, most popular
$95 Add to cart
Pick Your Courses
Up to 8 CE hours
$50 Add to cart
Phlebotomy CE Package$45 Add to cart
Individual course$20 Add to cart

What are Preanalytic Errors?

Preanalytic errors are errors that occur prior to the testing process. Hemolyzed specimens, clotted specimens, incorrect tube type, and inadequate tube fill can all produce preanalytic errors.

Fortunately, many of these errors can be detected by the laboratory analyst so that corrections can be made before testing begins or before resulting and reporting the test. Unfortunately, the correction that needs to be made usually involves redrawing the patient.

The table on the following page lists several preanalytic errors that can occur during the phlebotomy procedure.