Chapter 13 Donor Selection Flashcards
Why is important to screen donors?
The safety of the blood supply depends on thorough and accurate donor screening and processing or testing of each unit collected
What general information about the donor is verified and documented?
Donor’s full name (proof of ID with photo)
Permanent address and contact information
Date of birth
Gender
Date of last donation
What is the donor given upon registration to give blood?
Educational materials are provided
Health history interview
What are the age eligibility requirements?
Age:
17 or older
61 and over and first time, require a doctor’s note
71 and over, long time donors, require a doctor’s note
What is the min weight to donate blood?
Weight:
At least 110 pounds
What are the hemoglobin level requirements for donating blood?
Hemoglobin level:
Must be at least 125 g/L for women, and 130 g/L for men
What are the general health requirements to donate blood?
Health:
Must be in general good health
Must be feeling well on the day you donate
You should have eaten and slept well
What are the intervals between donations for whole blood?
Interval between donations:
Whole blood
Minimum 56 days for men
Minimum 84 days for women
Plasma donation must have been 7 days ago
Platelet donations must have been 14 days ago
What are the intervals of time between plasma and platelet donations?
Plasma donation must have been 7 days ago
Platelet donations must have been 14 days ago
After fulfilling general requirements what is next for the donor?
You can continue with donor selection by going through a screening process.
Screening involves a series of questions to determine your eligibility.
What are things the donor must do when they donate blood? Rights of the donor?
- Sign a consent form
- Pass a health assessment
- Temperature, pulse, hemoglobin, and blood pressure
- Must be allowed privacy
- Must be given opportunity to self-exclude themselves
What are the two categories of questions asked of the donor?
- Those intended to protect the donor (e.g., regarding pregnancy)
- Those intended to protect the recipient
What are the two categories of deferral for the donor?
Depending on the results of the medical history or prior tests, a donor may be
1. Indefinitely or permanently deferred
2. Temporarily deferred
What are reasons for permanent deferral?
Hepatitis
Chronic disease
Drug addiction
AIDS
Paid for sex
Origin or residence in certain countries
Malaria – Permanent and temporary deferral policies
What are reasons for temporary deferral?
Vaccination
Surgery
Medication
Illness
Dental work
STI
Pregnancy
Tattoos and body piercing
Men who have had sex with men
How much blood is typically collected and how long does it take?
~450-480mL of whole blood
10-15 minutes
What is used to clean the skin before blood is taken?
Use chlorohexidine gluconate to clean the skin (iodine if allergic to this antiseptic)
What adverse donor reactions can occur?
- Weakness, sweating, dizziness, pallor, nausea and vomiting. [Remove needle/tourniquet, elevate legs above head, cold compress]
- Syncope (fainting) [Cold compress on back of neck]
- Twitching, muscle spasms. [Have donor cough]
- Hematoma [Apply pressure for 7-10 mins, then ice for 5 mins]
- Convulsions [Prevent falling, call for help]
- Cardiac difficulties [Begin resuscitation, call for emergency help]
What post-donation instructions are given to donors?
Rest for 5 to 10 minutes
Drink additional fluids
Avoid smoking and drinking alcohol after donating
Remove the bandage after a few hours
Avoid anything strenuous for 6 to 8 hours
Lie or sit down if dizziness or fainting occurs
Notify the blood center if symptoms persist
Contact the donor center with any concerns about blood safety
What post-donations care are given to donors?
Rest for 5 to 10 minutes
Drink additional fluids
Avoid smoking and drinking alcohol after donating
Remove the bandage after a few hours
Avoid anything strenuous for 6 to 8 hours
Lie or sit down if dizziness or fainting occurs
Notify the blood center if symptoms persist
Contact the donor center with any concerns about blood safety
What is an allogenic blood donations?
Allogeneic donations: donations for the general population (for an anonymous patient)
What is an autologous blood donations?
Autologous donations: donations for personal use
Must be able to meet certain criteria
What are advantages and disadvantages of autologous blood donations?
See table 13.8
What are directed donations?
Donations are directed to specific recipients
Donors must meet the same criteria as for allogeneic donations
Is a directed donation safer than an allogeneic donation?
No evidence supports the theory that directed donations are safer than allogeneic donations
What is the only type of directed donation that CBS allows?
CBS only allows parent to minor child
CBS discourages directed donations except where family members have a blood type that is a match for a very rare recepient.
What is apheresis?
Components are separated, and the remaining blood is returned to the donor
What are the different types of apheresis?
Plateletpheresis
Plasmapheresis
Red cell apheresis
What do they recommend you do before you donate blood?
Eat salty food and drink lots of fluids prior to donating blood.
