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14 Cards in this Set
- Front
- Back
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Whose blood cells would agglutinate with anti A and B serum?
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Type O Blood, because their RBC's would have antibodies to both A and B RBC's on them.
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Whose serum would agglutinate with A and B cells.
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Type Blood, because their serum would have antibodies to the RBC's of A and B.
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What blood type would have serum that could be donated to anyone?
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AB blood type serum. Because they would not have anti A or anti B antibodies in their serum. This is assessed by reverse typing.
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What serum can only be donated to like serum?
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Type O blood serum. Because there would be anti-A and anti-B antibodies in the serum.
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What is an example of forward typing?
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When one is trying to assess the ABO antigens on RBC's. Reverse typing is when one is trying to assessing what antibodies are in the serum, anti-A or anti-B.
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What are some examples of donor saftey measures?
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Must be 17, can only donate whole blood every 8 weeks, cannot have a temp > 37.5 C., must weigh > 50 kg, no cancer or blood diseases in past, healthy enough to give blood.
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What safety measures are in place to ensure recipient safety?
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Donors are asked a questionare about their exposures to disease, lived or had sex with someone with hepatitis in the past 12 months, ever had hepatitis B or C, sexual behavior increasing risk of HIV, dura mater transplant forever because of CJD, been to UK. because of vCJD.
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Donor Criteria?
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Arm examined for track marks.
Temperature less than 37.5 Blood pressure must not be hypertensive. Weight must be 50 kg. Hb level must be >12.5 |
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Define the following terms? Donor consent, confidential unit exclusion.
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Donor Consent: Written consent that allows donor center personnel to collect and use blood from the prospective donor is required.
Confidential Unit exclusion: Donor must be allowed to indicate their blood should not be used confidentially, without face to face contact with collector. Also allow there donor to call anonymously. |
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Define Autologous donor, Apheresis donor, Recipient specific donor, and directed donor.
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Autologous donor: Donor donates for himself.
Apheresis donor: Donates blood components, not whole blood. Recipient specific donor: Used when donation is made for to recipient that has high antibodies for lots of things. Directed Donor: Recipient chooses the donors that they will use in non emergency situations. |
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How are blood components derived from whole blood?
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Whole blood: centrifuged: packed RBC's and Platelet Rich Plasma.
Platelet Rich Plasma centrifuged = platelet concentrate and Plasma Plasma = Fresh frozen plasma Fresh frozen plasma = Cryoprecipitate and cryopoor plasma. |
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What are the infectious diseases tested for in donated blood?
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HIV, Hep B, Hep C, HTLV-1 and 2, West Nile Virus, Chagas Disease, Syphilis, and platelets only are screened for more bacteria.
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Why transfuse blood components and not whole blood?
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One blood donation can benefit many people, and it allows for extra transfusions of components needed and not overload of those not needed by that patient. Like Iron overload.
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What are the indications, contraindications, and dosage of Whole blood?
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1 unit of WB is 500 mL of blood + 70 mL anticoagulant. Indications: Provides both oxygen carrying capacity and volume expansion. For patients who lost > 25% of their blood. Contraindications would be fluid overload, should not be used for platelets, WBC's, plasma. Not for patients with chronic anemia. Average adult 1 unit will increase Hg 1, and HCt by 3%. Not generally available. Must be ABO Identical.
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