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Pre-examination/Pre-analytical Variables in Laboratory Testing

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Presented by Kathleen Finnegan MS, MASCP, MLS(ASCP)SH CM

Pre-examination variables play a key roll in the quality of specimens that are obtained for laboratory testing. The pre- examination process is an important step for the accuracy of laboratory results which impact patient safety and the quality care given. Guidelines for collecting quality samples is essential because acceptance of improper specimens for analysis may lead to erroneous laboratory results.

Learning Objectives
At the end of this session, the attendee will be able to:

  1. Describe pre-examination variables and their affect on laboratory testing.
  2. Discuss phlebotomy procedures to increase the overall quality of specimen collection.
  3. Determine how to reduce pre-analytical variables and specimen rejection.
Instruction Level: Intermediate

ASCLS is approved as a provider of continuing education programs in the clinical laboratory sciences by the ASCLS P.A.C.E. ® Program.


  • Kathleen Finnegan MS, MASCP, MLS(ASCP)SHCM

    Kathleen Finnegan currently holds the title of Clinical Associate Professor in the department of Clinical Laboratory Sciences at Stony Brook University of New York. She has 30 plus years of teaching in the disciplines of hematology, coagulation and phlebotomy. She is the past chair of the Clinical Laboratory Sciences program and past program director of the Phlebotomy Training Program. She holds a New York State license, is board certified with the American Society of Clinical Pathologists (ASCP) and has her specialist in hematology (SH) certification. Other accomplishments include: an invited speaker nationally and internationally, contributor of several book chapters and has published numerous articles and case studies in field related journals.

March 20, 2024
Wed 1:00 PM EDT

Duration 1H 0M

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