Blood donations lecture part 1

Exam Preparation for Blood Donation and Transfusion

Overview of Exam Content

  • Examination will cover material from all modules.

  • Expect significant focus on specific units, particularly:
      - ABO discrepancies (expected to be on the exam)
      - Unit 4 and Unit 6 topics with a heavier emphasis.

  • General knowledge of immunity will be included but not prioritized compared to other units.

ABO Discrepancies

  • Students are advised to review ABO discrepancies thoroughly despite limited testing on them in class.

Blood Donation Importance

  • Encouragement to donate blood:
      - Not enough people in the general population donate blood.

  • Mention of personal stories to illustrate the need for plasma and blood donation:
      - Example: Personal connection due to family history of needing transfusions.

Blood Collection Clinics in Sudbury

  • Historical context:
      - Previously operated their own collection clinics for whole blood and platelet apheresis.

  • Recent changes in centers and operations:
      - Opening and closing of blood collection sites in Sudbury and Thunder Bay.

Online Resources for Blood Services

  • Importance of the website www.blood.ca (Canadian Blood Services).
      - Contains eligibility criteria, recent changes, and donation information.
      - Regular updates and notifications about blood donation standards and practices.

Blood Products and Their Use

  • Types of blood products to be discussed:
      - Whole blood, Red Blood Cells (RBC), Platelets, Plasma.

  • Process of blood separation after collection:
      - Initial whole blood collection: Approximately 480 mL.
      - Separation leads to packed cells and platelet-rich plasma.
      - Changes in product types as blood is processed.

Clinical Guidelines and Transfusion Information

  • Clinical guides for transfusion, product labeling, and anticoagulants are available online.

  • Visual guides illustrating contamination issues in blood products:
      - When not to transfuse blood products due to contamination.

Changes in Blood Donation Criteria

  • Regular updates occur in blood donation criteria and protocols.

  • Notable updates:
      - Individuals with Multiple Sclerosis (MS) may donate (as of 04/28/2025).
      - Continuous monitoring for eligibility criteria.

Blood Donor Agencies in Canada

  • Two primary agencies responsible for blood donation:
      - Canadian Blood Services (CBS) and Héma-Québec (HémoQ).

  • Historical context:
      - Transition from Red Cross to CBS in the late 1990s.
      - Importance of regulations and testing following the tainted blood scandal in the 1980s.

Blood Collection and Inventory Management

  • Responsibilities of CBS and Héma-Québec:
      - Collection, testing, and distribution of blood products.
      - Maintaining up-to-date inventory tracking of blood units across Canada.

  • Systems for request and transfer of blood products between regions (e.g., from Vancouver).

  • Managing parameters for stem cell and bone marrow programs:
      - Using buccal swabs to register potential donors.

Continuing Education Requirements

  • License maintenance for Medical Lab Technicians (MLT) requires thirty hours of continuing education a year.

  • Importance of ongoing professional development and available learning opportunities.

Blood Donation Process and Qualifications

General Information:

  • Minimum qualifications for blood donation:
      - Age: 17 years old.
      - Weight: Minimum of 110 lbs (50 kg).

  • Donation unit size: Approximately 480-500 mL.

  • Frequency of donations:
      - Males: Every 56 days (8 weeks).
      - Females: Every 84 days (12 weeks).
      - Plasma donors: Every 6 to 14 days.

Screening Process:

  • Comprehensive screening includes:
      - Online questionnaire and personal interview.

  • Visual health check of potential donors.

  • Blood testing for diseases once collected.

Risks and Deferral Practices:

  • Recognizing temporary and permanent deferrals for donors:
      - Acupuncture, COVID-19 recovery, dental work, vaccinations, medical conditions.

  • Specific durations for deferrals based on procedures or medical conditions.

Transfusion Volumes and Needs

  • Understanding how many transfusions are typically required based on medical conditions:
      - Cancer treatments may require up to 8 units weekly.
      - Coronary bypass surgeries require 1-5 units.
      - Trauma cases (e.g., accidents) may need up to 50 units of red cells, additional plasma may also be required.

Blood Safety and Pharmaceutical Standards

  • Blood as a biopharmaceutical product:
      - Compliance with current Good Manufacturing Practices (cGMP) is essential throughout the donation, processing, and distribution chain.

Health Check Prior to Donation

Requirements and Recommendations:

  • Recommended personal health measures before donation:
      - Healthy diet and hydration (salty snacks to retain fluids).

  • Common reasons for donor deferral:
      - Health conditions, medications, and recent surgeries/procedures.

Malaria and Other Risk Factors in Donation

  • Specific guidelines regarding malaria exposure:
      - Restrictions based on travel to endemic regions and symptoms.

  • Importance of past medical history in determining donor eligibility (e.g., individuals who suffered from malaria).

Additional Health Considerations:

  • Discussing Chagas disease and other risks associated with various infections acquired through donation.

  • Overview of blood-borne pathogens and the need for thorough screening.

Conclusion

  • Regular updates on blood donation criteria are crucial for safety in both donors and recipients.

  • Stressing the importance of knowledge about blood donation, the processes involved, and safety protocols to ensure public health.