Donor Selection: The Donor History Questionnaire (Online CE Course)

(based on 461 customer ratings)

Authors: Rory Huschka, M.Ed., MLS(ASCP) and Chelsea Flatley, MLS(ASCP)CM
Reviewer: Matthew Hukill, MBA, MS, MLS(ASCP)CM, SBBCM

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Continuing Education Credits

Continuing Education Credit Hour(s): 1 hour(s)
Approved through 2/28/2026
P.A.C.E.® Contact Hours (acceptable for AMT, ASCP, and state recertification): 1 hour(s)
Approved through 2/28/2026
Florida Board of Clinical Laboratory Personnel Credit Hours - General (Blood Banking / Immunohematology): 1 hour(s)
Approved through 2/28/2026


  • Explain the different types of donor deferrals.
  • Determine donor eligibility based on the answer to each question on the donor history questionnaire.
  • Recall deferral periods based on donor response to questions on the donor history questionnaire.

Customer Ratings

(based on 461 customer ratings)

Course Outline

Click on the links below to preview selected pages from this course.
  • Introduction
  • General Donation Requirements
  • Donor History Questionnaire
      • Overview
      • DHQ Structure
      • Deferral Types
      • Questions #1 – 4: General Health/Antibiotics and Medications for Infection
      • Question #5: Medication Deferral List
      • Question #6: Educational Materials
      • All of the following are cause for deferral from donating blood or blood products except:
      • True or False: A person taking an antibiotic for preventative measures may be allowed to donate blood during the course of their antibiotic regimen.
      • Question #7: Aspirin
      • Question #8: Previous Donation
      • Questions #9 and 10: Vaccinations and Close Contact with Smallpox Vaccine Recipient
      • AABB Vaccine Deferral Recommendations
      • What is the correct deferral period for someone who has received a chickenpox or shingles vaccine today?
      • The AABB makes several recommendations for donor deferral periods following certain vaccinations. Some vaccines do not have any deferral period, as lo...
      • Alex arrives at the blood donation center today to donate a unit of whole blood. Alex took an aspirin last night for a headache. Is Alex eligible to d...
      • True or False: Cameron arrives at the blood donation center and fills out the Donor History Questionnaire with a donor historian. Cameron says that th...
      • Question #11: Oral HIV Prevention Medication
      • Questions #12 – 14: New Sexual Contacts and HIV
      • Questions #15 – 18: Sexual Contact
      • True or False: Jordan had a needlestick exposure at work 2 months ago from a patient with an unknown, but high-risk HIV status. Jordan took post-expos...
      • In which of the following cases would a donor be deferred from donating blood products?
      • Question #19: Syphilis or Gonorrhea
      • Questions #20 and 21: Hepatitis Close Contacts
      • Questions #22 and 23: Contact with Blood and Accidental Needlesticks
      • Questions #24 and 25: Tattoos and Piercings
      • You have been living with a person who has hepatitis B but moved out 2 months ago and now live alone. How long are you deferred from donating blood or...
      • After collecting a blood specimen, a healthcare worker had an accidental needlestick with the needle used for the venipuncture. This occurred 1 month ...
      • Questions #26 – 28: Blood Transfusions, Transplants, and Grafts
      • Question #29: Double Red Donation
      • Question #30: Incarceration
      • Question #31: Injectable HIV Prevention
      • Question #32: Travel Outside the United States or Canada
      • Questions #33 and 34: HIV
      • Question #35: History of Pregnancy
      • Question #36: Malaria
      • Match the condition with the appropriate donor deferral period for a whole blood donation.
      • Question #37: Dura Mater Grafts or Xenotransplantation
      • Question #38: Cancer
      • Question #39: Heart or Lung Problems
      • Question #40: Bleeding Conditions
      • Question #41: Babesia
      • Additional Questions
      • Final Comments
      • Recent Revisions to the DHQ
  • References
      • References

Additional Information

Level of Instruction: Basic
Intended Audience: Medical laboratory scientists and technicians. This course is also appropriate for medical laboratory science students and pathology residents.
Author Information: 
Rory Huschka, M.Ed., MT(ASCP), has over 20 years of combined experience as a Medical Technologist, Technical Supervisor, Manager, Professor, and Program Director. He is the former Director of the Clinical Laboratory Science and Medical Laboratory Technician Programs at Brookline College. He is currently a content developer at MediaLab. Rory holds a BS degree in Medical Technology from North Dakota State University and a Master's in Educational Leadership.  He also holds a certificate in Lean/Six Sigma training from Villanova University.
Chelsea Flatley, MLS(ASCP)CM received her B.S. in Medical Technology from the University at Buffalo and holds licensure in the state of New York. She has over seven years of experience working in a diverse array of laboratory settings and departments across New York, thanks largely to her five-year career as a travel medical laboratory scientist. Chelsea currently holds a position in a molecular diagnostics lab.
Reviewer Information: 
Matthew Hukill, MBA, MS, MLS(ASCP)CM, SBBCM, currently works in an Immunohematology Reference Laboratory (IRL) at the American Red Cross in Durham, NC. He serves as a trainer and an instructor in addition to testing donors and patients. His previous experience includes managing an IRL and working in Transfusion Services in several large hospital systems.

How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 182 CE courses, most popular
$109Add to cart
Pick Your Courses
Up to 8 CE hours
$55Add to cart
Individual course$25Add to cart
Need multiple seats for your university or lab? Get a quote
Babesia.  Several of the erythrocytes in this field of view are infected with the small trophozoites of Babesia microti.  The cell shown by the blue arrow has a trophozoite with 4 nuclei.

Malaria Endemicity. (8)

Medication Deferral List. (1)

AABB vaccine deferrals. (2)