Respiratory Case Study: Possible Pertussis Infection (by LabCE)

1 P.A.C.E. contact hour(s)

(based on 322 customer ratings)

Author: Leah Ames, MS, MLS(ASCP)CM
Reviewer: Adelisa Franchitti, MS, MLS

Course provided by LabCE.

This course describes the clinical symptoms of Bordetella pertussis infection. Proper specimen collection and transport for diagnosis of B. pertussis along with laboratory testing procedures that aid in its diagnosis are presented. Advantages and disadvantages for each testing procedure including culture, nucleic acid amplification testing (NAAT), direct fluorescent antibody staining, and serology are discussed. Treatment options for pertussis infection including available vaccines are presented in this course.

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Included In These Course Packages

Continuing Education Credits

P.A.C.E.® Contact Hours (acceptable for AMT, ASCP, and state recertification): 1 hour(s)
Course number 578-090-20, approved through 9/30/2022
Florida Board of Clinical Laboratory Personnel Credit Hours - General (Molecular Pathology): 1 hour(s)
Course number 20-713733, approved through 9/1/2022

Objectives

  • Identify the clinical symptoms of Bordetella pertussis infection.
  • Describe proper specimen collection and transport for diagnosis of B. pertussis.
  • Identify laboratory testing procedures that aid in the diagnosis of B. pertussis.
  • Discuss advantages and disadvantages for each testing procedure including culture, nucleic acid amplification testing (NAAT), direct fluorescent antibody staining, and serology.
  • Explain the principles of NAAT testing for B. pertussis.
  • Discuss treatment options for pertussis infection.
  • Identify available vaccines that can help to prevent infection with B. pertussis.

Customer Ratings

(based on 322 customer ratings)

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Course Outline

  • Case Presentation
      • Case Study
      • Pathogenesis and Virulence Factors
      • Epidemiology and Transmission
      • Clinical Course and Significance of the Disease
      • Summary Table: Stages and Clinical Features of Pertussis
      • Complications
      • Proper Specimen Collection and Transport
  • Laboratory Workup
      • Case Study, continued: Laboratory Testing
      • Identification by Culture Methods
      • Nucleic Acid Amplification Testing (NAAT)
      • Genomic Insertion Sequences
      • Single-Copy Gene Targets
      • Positive Predictive Value
      • Addressing False-Positive NAAT Results
      • Direct Fluorescent-Antibody Staining (DFA)
      • White Blood Cell (WBC) Count
      • Case Study, continued: IgA, IgM and IgG Antibody Testing
      • Advantages and Disadvantages of Laboratory Tests for Identification of B. pertussis
      • Clinical Stages of Pertussis and Optimal Timing for Diagnostic Testing
  • Case study conclusion
      • Case Study Conclusion
      • Treatment and Dosing for Pertussis
      • Prevention
  • References
      • References

Additional Information

Level of instruction: Intermediate

Intended Audience: Medical laboratory scientists, medical technologists, and technicians. This course is also appropriate for medical laboratory science students and pathology residents.
 
Author information: Leah Ames, MS, MLS(ASCP)CM is a medical technologist in the Molecular Diagnostics department at Alverno Clinical Laboratories. She also serves as adjunct faculty for molecular diagnostics in the CLS program at Northern Illinois University and is an instructor of molecular diagnostics for Franciscan St. Margaret Health School of Medical Technology. Leah holds an M.S. degree in Clinical Laboratory Science from Michigan State University and a B.S. in Molecular and Integrative Physiology from the University of Illinois.
 
Reviewer information: Adelisa Franchitti, MS, MLS is currently employed by General Leonard Wood Army Community Hospital Laboratory. Previous to this employment, she was an Instructor in the Department of Biochemistry, Kansas State University. Ms. Franchitti holds a Masters in Microbiology and a Masters in Molecular Biology.

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B.pertusis gram stain. Image courtesy of www.phil.cdc.gov


DFA small


Pertussis cases 1940 to 2012


Pertussis Disease Progression. Image courtesy of www.cdc.gov

 
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