Laboratory genetic counselors within hospital laboratories and genetic testing laboratories have an important role in increasing the appropriate utilization of genetic tests. This service is becoming more important as genetic testing becomes more complex and the demand for genetic testing in healthcare increases. Additionally genetic tests are among the most expensive assays in the clinical laboratory test catalog, laboratory genetic counselors are able to increase genetic test utilization through review and assessment of the appropriateness of the ordered testing, developing protocols, and by increasing communication with ordering providers. (C) 2013 Elsevier B.V. All rights reserved.