Cold Agglutinin Testing
Course Objectives
At the conclusion of the session, the participant will be able to:
- Explain the immunologic behavior of cold agglutinins and describe how temperature deviations during collection, handling, and transport impact specimen integrity and test accuracy.
- Identify and apply appropriate pre-analytical handling strategies for cold agglutinin specimens, including tube preparation, temperature maintenance at 37 °C, transport prioritization, documentation, and communication with laboratory personnel.
- Analyze real-world clinical scenarios involving cold agglutinin testing and determine corrective actions to prevent pre-analytical errors, reduce redraws, and support accurate and timely diagnosis.
Course Content
Course Creator: Kristen Moylan BSPH, CCRC
Total CE Hours: 1 Credit Hour
Pace Course #: 586-2512-25
Course Description : Cold agglutinin testing presents a unique set of challenges in the clinical laboratory because these specimens require very specific handling, temperature control, and efficient transport to maintain accuracy. This continuing education course explores the science behind cold agglutinins, why temperature sensitivity matters, and how phlebotomists can protect specimen integrity from the moment of collection through delivery to the laboratory. Learners will gain a clear understanding of how improper handling can lead to false results, unnecessary redraws, and delays in diagnosing conditions such as cold agglutinin disease, Mycoplasma pneumoniae infections, and certain autoimmune disorders.
Because this testing relies heavily on maintaining the specimen at body temperature, the course explains warm collection techniques, use of temperature-controlled transport devices, and strategies for preventing premature agglutination. To expand the learner’s understanding of temperature-dependent analytes, the course briefly introduces the concept xof Dried Blood Spot (DBS) collection as a comparative educational example. DBS is discussed to illustrate how specimen format influences stability, transport, and handling requirements. DBS is not appropriate for diagnostic cold agglutinin testing and is included solely to contrast specimen behaviors under different temperature and transport conditions.
A major component of this course is scenario-based learning. Each section includes real-world examples that illustrate how small errors in the preanalytical phase can significantly alter test interpretation. Scenarios will walk learners through appropriate collection techniques, troubleshooting problems such as accidental cooling, managing transport delays, identifying mislabeled samples, and responding when warmed equipment is unavailable. These detailed scenarios help reinforce critical thinking, situational awareness, and decision-making skills, competencies that are essential for safe and reliable specimen handling.
By the end of the course, participants will have a deeper understanding of temperature-sensitive testing, strategies for preserving specimen quality, and the practical skills needed to navigate unexpected challenges during collection and transport.
References:
References:
- Berentsen, S., & Brugnara, C. (2025, October 30). Cold agglutinin disease. Www.uptodate.com. https://www.uptodate.com/contents/cold-agglutinin-disease
- Cleveland Clinic. (2022). Cold Agglutinin Disease: What It Is, Symptoms & Treatment. Cleveland Clinic. https://my.clevelandclinic.org/health/diseases/23178-cold-agglutinin-disease
- Labcorp. (2025). Cold Agglutinin Titer, Quantitative. Labcorp.com. https://www.labcorp.com/tests/006353/cold-agglutinin-titer-quantitative
- Salimetrics. (2025, August 27). Dried Blood Spot Collection Handbook – Salimetrics. Salimetrics. https://salimetrics.com/dried-blood-spot-collection-handbook/
- WebMD Editorial Contributors . (2025, April 26). What is a Cold Agglutinins Test? WebMD. https://www.webmd.com/a-to-z-guides/cold-agglutinis-test
- Zahid, H., Hadef, R., Labrini, F., Yahyaoui, A., & Messaoudi, N. (2021). Cold agglutinins revelated by abnormalities to the cell blood count. Pan African Medical Journal, 38. https://doi.org/10.11604/pamj.2021.38.328.9100
