Laboratory Diagnosis of Cystic Fibrosis (Online CE Course)

(based on 309 customer ratings)

Author: Vicky LeGrys, DA, MT(ASCP)
Reviewer: DeRhonda Crawford, MT(ASCP)

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This course discusses the clinical presentation of cystic fibrosis (CF) and how genetic mutations can lead to the manifestation of the disorder. Laboratory testing used in the diagnosis of CF is presented including the components of a quantitative sweat chloride test. Finally, current treatment options for the disease are discussed.

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Continuing Education Credits

P.A.C.E.® Contact Hours (acceptable for AMT, ASCP, and state recertification): 1 hour(s)
Approved through 6/30/2025
Florida Board of Clinical Laboratory Personnel Credit Hours - General (Clinical Chemistry/UA/Toxicology): 1 hour(s)
Approved through 6/30/2025

Objectives

  • Describe the clinical presentation of cystic fibrosis (CF).
  • Describe how mutations in the CF gene lead to the clinical manifestations of the disorder.
  • Outline the laboratory diagnosis of CF to include newborn screening, the sweat test, and DNA testing.
  • Describe the components of a quantitative sweat chloride test to include reference ranges.
  • Compare screening sweat tests to confirmatory sweat tests.
  • Discuss the current treatment options for CF.

Customer Ratings

(based on 309 customer ratings)

Course Outline

Click on the links below to preview selected pages from this course.
  • Introduction to Cystic Fibrosis
      • Course Introduction
  • The History of CF
  • Pathophysiology of CF
      • Pathophysiology of CF
      • Mutations of Cystic Fibrosis Transmembrane Conductance Regulator (CFTR)
      • CF is due to a defect in a protein which functions as a(n):
  • Clinical Presentation
      • Overview of Clinical Characteristics
      • Pulmonary Disease
      • Pancreatic Disease
      • Sweat Gland Involvement
      • Gastrointestinal and Liver Disease
      • Reproductive System
      • Which of the following pathogens is not typically associated with CF pulmonary disease?
      • Which of the following statements concerning the sweat of patients with CF is true?
  • Laboratory Diagnosis of CF
      • Laboratory Diagnosis of CF
      • Newborn Screening (NBS) in the United States
      • DNA Testing
      • Why do patients with a positive newborn screening test for CF require confirmation of the diagnosis?
    • Sweat Testing
  • Treatment
      • Treatment
      • Treating the Symptoms
      • Treating the Protein Defect
      • Gene Replacement
      • Which of the following statements is true concerning medications that treat the protein defect in CF?
  • Summary
  • References
      • References

Additional Information

Level of instruction: Intermediate
Intended Audience: This course is designed for medical laboratory scientists, medical technologists, and medical laboratory technicians. This course is also appropriate for medical laboratory science students and pathology residents.
Author information: Vicky LeGrys, DA, MT(ASCP) is a professor in the Division of Clinical Laboratory Science in the School of Medicine at the University of North Carolina Chapel Hill where she is responsible for the lecture and laboratory courses in Biochemistry, Clinical Chemistry, and Quality Assurance. She holds a Doctorate of Arts and a Master of Science in Medical Technology from the Catholic University of America, Washington DC with a major in Clinical Chemistry.
Reviewer information: DeRhonda Crawford, MT(ASCP) is the chemistry supervisor at Gwinnett Medical Center in Lawrenceville, Georgia and the technical supervisor for the Gwinnett Medical Center in Duluth, Georgia. She holds a BS in Medical Technology from the Medical College of Georgia.

How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 181 CE courses, most popular
$109Add to cart
Pick Your Courses
Up to 8 CE hours
$55Add to cart
Individual course$25Add to cart
Sweat gland Normal CF


clinical characteristics


CFTR mutant


collection of sweat into macroduct_edit


digital chloridometer_edit