Cancer Genetics Risk Assessment and Counseling (PDQ®): Genetics - Health Professional Information [NCI] - The Option of Genetic Testing
Table 1. Clinical Utility of Genetic/Genomic Testsa continued...
Of the 56% of participants who provided a 3-month follow-up assessment, there was neither evidence of clinically meaningful distress and health behavior change (dietary fat intake, exercise) nor a statistically significant difference in screening test uptake compared with baseline measures. Illness-specific worry was not assessed. Only 10% of participants had discussed their test results with a DTC company-specific genetic counselor; only 27% had discussed their results with their physician.
Informed consent can enhance preparedness for testing, including careful weighing of benefits and limitations of testing, minimization of adverse psychosocial outcomes, appropriate use of medical options, and a strengthened provider-patient relationship based on honesty, support, and trust.
Consensus exists among experts that a process of informed consent should be an integral part of the pretest counseling process. This view is driven by several ethical dilemmas that can arise in genetic susceptibility testings. The most commonly cited concern is the possibility of insurance or employment discrimination if a test result, or even the fact that an individual has sought or is seeking testing, is disclosed. In 2008, Congress passed the Genetic Information Nondiscrimination Act (GINA). This federal law provides protections related to health insurance and employment discrimination based on genetic information. However, GINA does not cover life, disability, or long-term-care insurance discrimination. A related issue involves stigmatization that may occur when an individual who may never develop the condition in question, or may not do so for decades, receives genetic information and is labeled or labels himself or herself as ill. Finally, in the case of genetic testing, medical information given to one individual has immediate implications for biologic relatives. These implications include not only the medical risks but also disruptions in familial relationships. The possibility for coercion exists when one family member wants to be tested but, to do so optimally, must first obtain genetic material or information from other family members.
Inclusion of an informed consent process in counseling can facilitate patient autonomy. It may also reduce the potential for misunderstanding between patient and provider. Many clinical programs provide opportunities for individuals to review their informed consent during the genetic testing and counseling process. Initial informed consent provides a verbal and/or written overview of the process.