Naval Medical Center Study Reveals More than One-third of Genetic Tests are Misordered; Clinical Laboratories Critical to Improving Lab Test Utilization
Pathologists and clinical lab managers can help physicians more effectively select appropriate genetic tests and better interpret results to identify the most appropriate therapies for their patients
Clinical laboratories and pathology groups aren’t the only healthcare providers being scrutinized for cost cutting and workflow efficiencies. Physicians ordering genetic tests are now in the spotlight thanks to a study of genetic test misordering by one healthcare institution.
In her award-winning presentation, “Genetic Testing Costs and Compliance with Clinical Best Practices,” given at the 2016 annual clinical and scientific meeting of the American College of Obstetricians and Gynecologists (ACOG), Kathleen Ruzzo, MD, revealed some startling facts to the attendees. Ruzzo is an obstetrics and gynecology (OB-GYN) resident at the Naval Medical Center (NMC) in San Diego. She and a team of NMC researchers had reviewed all genetic tests ordered during a 3-month period. They found that more than one-third of the genetic tests examined were unnecessary and had led to more than $20,000 in additional healthcare expenditures. This got the attention of the ACOG, which awarded her 1st prize.
Critical Importance of Staying Informed on Genetic Tests
The researchers examined 114 charts that contained billing codes for genetic tests. They evaluated the charts for compliance with practice guidelines and completed a cost analysis of the tests. The tests were classified per GeneReviews guidelines and were labeled as:
- Appropriate;
- Misordered/Not Indicated;
- Misordered/False Reassurance; or
- Misordered/Inadequate.
GeneReviews is an online database focusing on information, diagnosis, management, and counseling of single-gene disorders. It is published by the National Center for Biotechnology Information.
The researchers found that:
- 44 of the 114 charts examined (39%) were misordered based on the guidelines;
- 24 of the tests were labeled as misordered/not indicated;
- Eight tests were classified as misordered/false reassurance; and
- 12 tests were determined to be misordered/inadequate.
“We know there is an ever-expanding number of genetic tests available for clinicians to order, and there is more direct marketing to the patient,” stated Ruzzo in an Ob. Gyn. News article. “It can be difficult to stay on top of that as we have so many different clinical responsibilities.”
Kathleen Ruzzo, MD (above right) and Monica Lutgendorf, MD (above left) of the Naval Medical Center in San Diego, reviewed 114 genetic tests ordered during a three-month period. They discovered that 39% of the tests were misordered according to guidelines, costing a total of $75,000. (Photo copyright: Naval Medical Center.)
The actual testing was performed by Laboratory Corporation of America and occurred over a three-month period. The seven common genetic tests that were reviewed were tests for:
- Cystic fibrosis;
- BRCA mutation;
- Factor V Leiden;
- Prothrombin;
- Alpha-thalassemia;
- Haemochromatosis; and
- Cell-free DNA.
The cost analysis of the tests revealed that $20,000 could have been saved by following the GeneReviews guidelines. The total costs affiliated with the 114 tests reached $75,000. Potential savings were thus 26.6% of the total cost of the genetic tests involved in this study. In many clinical settings, if pathologists and medical laboratory managers could help physicians better utilize genetic tests while reducing the cost of such testing by almost 27%, that would be a major contribution. Plus, patients would be getting better care.
Ordering the Right Genetic Test Saves Money and Protects Patients
According to the National Institutes of Health (NIH), costs affiliated with genetic tests can range from less than $100 to more than $2,000 depending on the type and intricacy of the test. The NIH notes that many insurance companies will pay for genetic testing if ordered by a physician.
Ruzzo also shared that many of her cohorts were surprised at the results of the research.
“I think it opened a lot of people’s eyes … to be more meticulous about [genetic] testing and to ask for help when you need help,” she stated in the Ob. Gyn. News article. “Having trained individuals, reviewing genetic tests could save money in the healthcare system more broadly. We could also approve the appropriate testing for the patient.”
Ruzzo did admit there were limitations to the study; the researchers only looked at small amounts of tests for a short period and they did not concentrate on the consequences of the misordering to the patients.
Monica Lutgendorf, MD, Maternal Fetal Medicine Physician at the Naval Medical Center, was one of the coauthors of the paper. In the Ob. Gyn. News article, she described the findings as “a call to action in general for ob-gyns to get additional training and resources to handle the ever-expanding number of [genetic] tests.”
“I don’t think that this is unique to any specific institution. I think this is part of the new environment of practice that we’re in,” Lutgendorf concluded.
Due to the costs of genetic testing and the fact that so many physicians have not been able to keep up with all the latest advances in genetic medicine and testing, misordering will, most likely, continue to be a problem. Nevertheless, pathologists and clinical laboratory managers can serve a crucial role in helping physicians be more effective at selecting the correct genetic tests and assisting them in interpreting results to choose the most appropriate therapies for their patients.
Meanwhile, for those pathologists and medical laboratory professionals interested in developing effective utilization management programs for lab tests, Dark Daily is presenting a special webinar, titled, “Simple, Swift Approaches to Lab Test Utilization Management: Proven Ways for Your Clinical Laboratory to Use Data and Collaborations to Add Value.” It will take place on Thursday, June 29, 2017 at 1PM EDT.
For information about this high-value webinar and to register, use this link (or copy this URL and paste into your browser: https://ddaily.wpengine.com/webinar/simple-swift-approaches-to-lab-test-utilization-management-proven-ways-for-your-clinical-laboratory-to-use-data-and-collaborations-to-add-value.)
—JP Schlingman
Related Information:
More Than One-Third of Genetic Tests Misordered, Study Finds
Genetic Tests Often Overused and Misinterpreted, Sometimes with Tragic Consequences
