New viscoelastic testing requirement in checklist
September 2023—A proficiency testing accreditation requirement in the new checklist edition was revised to add clarification, and a new requirement on viscoelastic testing will close an existing gap.
Webinars and Sponsored Roundtables — Register Now
Thursday, May 28, 2026, 1:00–2:00 PM ET
This session is designed to improve understanding and application of recent updates to synoptic pathology reporting protocols such as the latest Reporting Template for Reporting Results of Biomarker Testing of Specimens from Patients with Carcinoma of the Breast. These changes reflect evolving clinical guidelines that directly influence diagnostic accuracy and treatment selection in breast cancer care.
Webinar presenters Thaer Khoury, MD, FCAP, Chair, Pathology and Laboratory Medicine, Roswell Park Comprehensive Cancer Center, and Colin Murphy, CEO of mTuitive.
Moderated by: Bob McGonnagle, Publisher, CAP TODAY
Tuesday, June 9, 2026, 1:00–2:00 PM ET
In this webinar, we will examine how immune recognition after allogeneic HCT can influence leukemia relapse and disease progression. The session will highlight the clinical relevance of HLA loss of heterozygosity (LOH), approaches used for its detection, and how LOH findings may support transplant strategies, including considerations for donor selection in subsequent transplantation.
Webinar presenter Alberto Cardoso Martins Lima, PhD, Clinical consulting scientist in histocompatibility,
specializing in allogeneic hematopoietic cell transplantation (HCT) at IGEN/AFIP São Paulo and CHC/UFPR in Curitiba, Brazil
Moderated by: Bob McGonnagle, Publisher, CAP TODAY
Wednesday, June 24, 2026, 12:00–1:00 PM ET
Hear an expert discuss the expanded clinical utility of HER2 IHC scoring in metastatic breast cancer and its impact on your practice
Webinar presenter Michelle Shiller, DO, AP, CP, MGP, FACP, Baylor University Medical Center.
Moderated by: Bob McGonnagle, Publisher, CAP TODAY
Subspecialties
Interactive Product Guides
Proficiency testing (see also CAP programs/products/services)
What’s required in ’23 for predictive marker tests
September 2022—Beginning next year, two additional predictive marker tests will require enrollment in proficiency testing (PT), but for any predictive marker using immunohistochemistry or in situ hybridization, only laboratories that perform both staining and interpretation must participate in CAP-accepted PT.
Gastric HER2, hsALK to join monitored PT list
September 2021—Beginning next year, CAP-accredited laboratories that perform HER2 immunohistochemistry in gastroesophageal adenocarcinoma or highly sensitive (hs) ALK in non-small cell lung cancer will be required to enroll in proficiency testing for those analytes.
At POC and in lab, 2 new checks on SARS-CoV-2 testing
November 2020—The CAP released in September its proficiency testing program for SARS-CoV-2 antigen testing, with the first shipment to laboratories set for Nov. 30. It also introduced recently a Quality Cross Check program that makes it possible for labs performing nucleic acid amplification testing for SARS-CoV-2 to monitor performance across multiple instruments, in compliance with the CMS directive prohibiting proficiency testing on multiple instruments.
Cytopathology in focus: Gynecologic cytology PT appeals: where they started,where they stand
May 2020—The CAP implemented proficiency testing for cervical cytology in 2006 as mandated by federal legislation. The performance of participants and granting of appeals on glass slides in the first year of the CAP Pap PT program was reported in detail by Crothers, et al. Once a participant initiates an appeal, the slide in question is pulled from the program for a blinded review by three board-certified anatomic pathologists who are members of the CAP Cytopathology Committee. In the first year, 155 participants failed the PT examination and appealed their testing results on 86 individual slides. After review, appeals were granted for 21 slides, resulting in 45 exam failure reversals. The overall appeal rate was 13/1,000 slides in the program.
DIY or Survey? Identifying interfering substances
October 2017—The interfering substance: Whether it’s in-laws on your doorstep or lipemia in your specimen, it has to be addressed. Ask Michelle K. Zimmerman, MD. These days, Dr. Zimmerman uses the CAP Interfering Substance Survey to detect the presence of hemolysis, lipemia, and icterus in clinical chemistry samples at Indiana University School of Medicine, where she is an assistant professor of pathology and laboratory medicine. But before her laboratory started using the Survey, how did it handle those interferences?
For NIPT laboratories, a new proficiency test in 2018
September 2017—The CAP Surveys program is offering for 2018 a novel external proficiency test for laboratories that perform screening of cell-free (cf) DNA in maternal plasma for common aneuploidies.
Glucose PT criteria reset stirs standards debate
June 2016—It may not be an exact science, but resetting standards is a long-established means of improving quality of testing, and it can also be a way of adapting to improvements in quality that have already been realized. In the case of the CAP’s recent tightening of proficiency testing criteria for hospital glucose testing, both purposes are at work.
Proficiency tests on multiple instruments: CMS clarifies regs
March 2016—If a laboratory does not perform its proficiency testing in accordance with a recently reiterated CMS directive regarding PT on multiple instruments, its standing with the Centers for Medicare and Medicaid Services could be at stake. In fact, “You could be sanctioned directly by the CMS,” says Thomas Long, MPH, CAP director of biostatistics.
3 new NGS Surveys on CAP 2016 PT launchpad
November 2015—More than two years ago, when the CAP decided to move forward with proficiency testing for next-generation sequencing, the decision point was modest. “We estimated that about 35 labs would subscribe, based on survey information, and that was sufficient for us to move forward,” says Karl V. Voelkerding, MD, chair of the CAP Next-Generation Sequencing project team.