Hemolytic Disease of the Fetus and Newborn (by LabCE)

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

(based on 887 customer ratings)

Author: Pat Letendre, MEd
Reviewer: Erin Tretter, MT(ASCP)

Course provided by LabCE.

This course presents current information related to hemolytic disease of the fetus and newborn (HDFN). It provides you with an opportunity to review and update your knowledge of significant aspects of HDFN and its laboratory investigation and prevention. This course provides a broad overview of many important topics including causative antibodies, laboratory findings in severe HDFN, and pre- and postnatal treatments. Rh immune globulin (RhIg) is covered in depth, since it prevents the most severe form of HDFN and is one of the biggest success stories of modern medicine.

See more courses in: Blood Banking / Immunohematology

Included In These Course Packages

Continuing Education Credits

P.A.C.E.® Contact Hours (acceptable for AMT, ASCP, and state recertification): 2 hour(s)
Course number 578-031-18, approved through 6/30/2020
Florida Board of Clinical Laboratory Personnel Credit Hours - General (Blood Banking / Immunohematology): 2 hour(s)
Course number 20-626427, approved through 9/1/2020

Objectives

  • Describe and interpret typical clinical symptoms and associated laboratory test results in hemolytic disease of the fetus and newborn (HDFN) and relate findings to the pathogenesis of HDFN and its treatment.
  • Describe the progression of HDFN due to anti-D historically and discuss the effect of Rh immune globulin (RhIG) and other factors on its incidence.
  • Compare and contrast ABO HDFN and HDFN due to anti-D and other antibodies in terms of clinical symptoms, fetal monitoring procedures, laboratory investigation, typical test results, and criteria for donor RBC transfusions.
  • Identify current best practices for perinatal testing programs and investigation of HDFN and interpret serologic tests done on the mother, father, and fetus / newborn.
  • Discuss the criteria for administration, dosage calculation, and causes of failures of RhIG.
  • Describe the principles, uses, and limitations of the rosette test, Kleihauer-Betke test, and flow cytometry used in perinatal testing programs.

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Course Outline

  • Pathophysiology of HDFN and Blood group systems most commonly implicated in the disease
      • Introduction
      • Development of Anti-D
      • Factors That Affect Production of Anti-D
      • Primary versus Secondary Response
      • Pathophysiology in Severe HDFN Due to Anti-D
      • HDFN Due to Anti-D
      • ABO HDFN
      • ABO HDFN: Diagnostic Tests
      • ABO HDFN: Expected Findings
      • ABO HDFN: Treatment
      • HDFN Due to Other Antibodies
  • Fetal Monitoring and HDFN Treatments
      • Fetal Monitoring
      • Prenatal Treatment
      • Choosing Donor RBC for IUT and IVT
      • Postnatal Treatment: Exchange Transfusion
      • Criteria for Transfused Red Blood Cells
      • Other Postnatal Treatment
  • Perinatal Testing Programs
      • Introduction
      • HDFN Diagnosis and Management
      • Newborn Serologic Testing Protocols
      • Molecular Genotyping
      • Molecular Genotyping: Differentiating Between Weak D and Partial D
      • Determining Risk for HDFN Using Molecular Genotyping
      • Follow-up Investigative Tests (Mother)
      • Follow-up Investigative Tests (Father)
      • Follow-up Investigative Tests (Fetus)
      • Follow-up Investigative Tests (Newborn)
  • Review of Rh Immune Globulin
      • RhIG Prophylaxis
      • RhIG Uses
      • RhIG and Variants of D
      • RhIG Policies for Weak D
      • Clinical Relevance of D Phenotypes
      • RhIG 'Failures'
      • Passive Anti-D following RhIG Administration
      • Protocols to Deal with RhIG-Derived Anti-D
  • Post-delivery Testing of RhIG Candidates
      • Introduction
      • Screening for Fetomaternal Hemorrhage (FMH)
      • Rosette Test
      • Quantifying FMH
      • Kleihauer-Betke (KB) Test
      • Flow Cytometry
      • Calculating RhIG Dosage
  • Summary and Conclusions
      • Main Learning Goals
  • Further Reading
      • Resources
  • References
      • References

Additional Information

Level of instruction: Intermediate

Intended Audience: Clinical laboratory technologists, technicians, and pathologists. This course is also appropriate for clinical laboratory science students and pathology residents.
 
Author information:
 
Pat Letendre, MEd is a laboratory technologist, educator, and consultant. Currently, she consults full-time in the areas of transfusion medicine, education, professional development, and use of the Internet in education. Ms. Letendre is the Webmaster for Canada's transfusion safety officers and the TraQ website coordinator. She holds a Masters of Education degree in adult education from the University of Alberta and a Bachelor of Science degree from the University of Manitoba.  
   
Reviewer information:

Erin Tretter, MT(ASCP), is currently the STAT Laboratory Supervisor at Penn Presbyterian Medical Center in Philadelphia, PA. She received her BS in Medical Technology from California University of Pennsylvania and has nearly 8 years of experience as a Generalist, including Blood Bank, Hematology and Chemistry. Erin is the Blood Bank Clinical Instructor for the Clinical Laboratory Science Program at St. Christopher’s and has 4 years experience teaching immunohematology concepts and laboratory procedures to Medical Technology students. She has also provided blood bank training for laboratory technologists and medical students. Erin is currently obtaining a Master’s in Business Administration from Florida Institute of Technology where she is a member of the Phi Kappa Phi Honor’s Society.

Course information:

This course will:

  • Recap relevant background information on HDFN and its treatment
  • Review the characteristics and uses of Rh immune globulin (RhIg)
  • Discuss typical laboratory findings and their interpretations
  • Examine current best practices in perinatal testing programs

It is a companion course to "Rh negative female with anti-D at delive

Keywords

These are the most common topics and keywords covered in Hemolytic Disease of the Fetus and Newborn (by LabCE):

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