Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
ASCP Blood products
| Question | Answer |
|---|---|
| The minimum hemoglobin concentration in a fingerstick from a male donor is | The minimum requirement regardless of sex is 12.5 g/dL (125 g/L) |
| A cause for permanent deferral of blood donation is | History of jaundice of uncertain cause. Jaundice is a sign of liver impairment which may be due to HBV or HCV. Infection with either one is cause for permanent deferral. |
| Would this patient be accepted for blood donation? 32 year old woman who received a transfusion in a complicated delivery 5 months previously. | No, deferral period for transfusion is 6 months |
| Would this patient be accepted for blood donation? 19 year old sailor who has been stateside for 9 months and stopped taking his anti-malarial medication 9 months previously. | No, deferral for travel to areas endemic for malaria is 12 months regardless of antimalarial prophylaxis. |
| Would this patient be accepted for blood donation? 22 year old college student who has a temperature of 99.2°F (37.3°C) and states that he feels well, but is nervous about donating. | Yes, temperature cannot exceed 99.5°F or 33.5°C for donation. |
| Would this patient be accepted for blood donation? 45 year old woman who has just recovered from a bladder infection and is still taking antibiotics. | No, a person taking antibiotics may have bacteremia. |
| Would a recent close contact with a patient with viral hepatitis be cause for permanent rejection status of a donor? | No |
| Would a confirmed positive test for HBsAg 10 years previously be cause for permanent rejection status of a donor? | Yes, a positive test for HBsAg at any time is a indefinite deferral |
| A woman has a spontaneous abortion at 2 months of pregnancy, 3 months previously. Can she be accepted as a blood donor? | Yes, if she has not been pregnant in the last 6 weeks she is able to donate. |
| History obtained from a prospective female blood donor: Age: 16 Temperature: 99.0°F (37.2°C) Hct: 36% History: tetanus toxoid immunization 1 week previously Which results if any, excludes this donor from giving blood? | Hct has to be > 38%. A donor may be 16 unless state law differs. Toxoids and vaccines from synthetic or killers sources have no deferral. |
| What temperature must the donor not exceed in order to donate? | 99.5°F (37.5°C) |
| What must the blood pressure be in order to donate? | <180 mm Hg systolic and <100 mm Hg diastolic |
| What is the minimum platelet count required for frequent repeat donors? | 150 x 10³ /μL ...platelet count is not required for first time donation or if the interval between donations has been at least 4 weeks. |
| Prior to blood donation, the intended venipuncture site must be cleaned with a scrub solution containing what? | PVP iodine complex |
| What must all donor testing include? Hint: it was the first mandated donor screening test for infectius disease | Serological test for syphilis |
| What temperature should platelets be stored for optimum function? | 20°-24°C |
| What is the most common posttransfusion hepatitis? | Hepatitis B |
| What do you test donors for when wanting to detect the most common cause of posttransfusion hepatitis? | HBsAg |
| The Western blog is a confirmatory test for the presence of what? | Anti- HIV-1 |
| What test uses purified HIV proteins to confirm reactivity in samples whose screening test for anti-HIV is positive? | Western blot |
| What test is used to detect donors who are infected with the AIDS virus? | Anti-HIV 1,2 (human immunodeficiency virus types 1 and 2) |
| What is a commonly used screening method for anti-HIV-1 detection? | Enzyme-labeled immunosorbent assay (ELISA) |
| Rejuvenation of a unit of Red Blood Cells is a method used to what? | Restore 2,3 DPG and ATP to normal levels |
| A unit of Red Blood Cells expiring in 35 days is split into 5 small aliquots using a sterile pediatric quad set and a sterile connecting device. Each aliquot must be labeled as expiring when? | The original date of unsplit unit |
| When platelets are store on a rotator set on an open bench top, the ambient air temperature must be recorded when? | Every 4 hours |
| When temperature should fresh frozen plasma be stored and for how long? | -18°C or below for 12 months |
| What is the optimum storage temperature for frozen Red Blood Cells? | -65°C or lower |
| What is the optimum storage temperature for Red Blood Cells? | 1-6°C |
| If the seal is entered on a unit of Red Blood Cells stored at 1°C to 6°C, what is the maximum allowable storage in hours? | 24 hours |
| What is the optimum storage temperature for cryoprecipitated AHF is what? | -18°C or lower |
| Cryoprecipitated AHF must be transfused within what period of time following thawing and pooling? | Within 4 hours |
| Whole blood derived platelets are stored at what temperature? | 20° to 24°C with continuous gentle agitation |
| Platelets prepared by the PRP method may be stored for up to how many days? | 5 days |
| According to AABB standards, Fresh Frozen Plasma must be infused within what period of time following thawing? | Thawed FFP must be stored at 1-6°C for no more that 24 hours |
| Cryoprecipitated AHF maintained in the frozen state at -18°C or below has a shelf life of how long? | 12 months in the frozen state |
| Once thawed, fresh frozen plasma must be transfused within how many hours? | 24 hours |
| What is an important determinant of platelet viability following storage? | PH of platelets should be kept at 6.2 or above throughout the storage period |
| In the liquid state, plasma should be stored at what temperature? | 1-6°C |
| During storage, the concentration of 2,3 DPG decreases in a unit of what? | Red Blood Cells causing a shift to the left in the oxygen dissociation curve. |
| Cryoprecipitate is used primarily for what? | Fibrinogen replacement |
| In what situation will apheresis platelets be irradiated? | A direct donation from mother to son |
| Irradiation of a unit of Red Blood Cells is done to prevent the replication of what? | Donor T lymphocytes |
| Plastic bag overwraps are recommended when thawing units of FFP in 37°C water baths because they prevent what? | The entry ports being contaminated with water |
| Which of the following blood components must be prepared within 8 hours after phlebotomy? | Fresh Frozen Plasma (FFP) |
| Cryoprecipitated AHF contains how many units of Factor VIII? | 80 units in 10 ML of plasma |
| What is the most effective component to treat a patient with fibrinogen deficiency? | Cryoprecipitated AHF |
| Upon inspection, a unit of platelets is noted to have visible clots, but otherwise appears normal. What should the technologist do? | Quarantine and gram stain for culture because clots in the unit may indicate contamination |
| According to AABB standards, Platelets prepared from Whole Blood shall contain a minimum of how many platelets? | 5.5 x 10¹⁰ per unit in at least 90% of the units tested |
| According to AABB standards, at least 90% of all Apheresis Platelets units tested shall contain a minimum of how many platelets? | 3.0 x 10¹¹ |
| What is proper procedure for preparation of Platelets from Whole Blood? | Light spin followed by a hard spin |
| According to AABB standards, what is the minimum pH required for Platelets at the end of the strorage period? | 6.2 |
| Per AABB standards, how should Platelets be stored? | Platelets should be stored at 20°-24°C with continuous agitation and must be separated from whole blood units. |
| A unit of Whole Blood-derived (random donor) Platelets should contain at least how much? | 5.5 x 10¹⁰ platelets |
| Leukocyte-Reduced Red Blood Cells are ordered for a newly diagnosed bone marrow candidate. How should this product be prepared? | Transfuse through a leukocyte-removing filter |
| A father donating platelets to his son is connected through a continuous flow machine that separates Platelets from Whole Blood. As Platelets are harvested, all remaining elements are returned to donor. What is this called? | Apheresis |
| In order to qualify as a donor for autologous transfusion w hemoglobin should be at least what? | 11 g/dL (110 g/L) |
| What are the minimum pretransfusion testing requirements for autologous donations collected and transfused by the same facility? | ABO and Rh only |
| In quality assurance program, cryoprecipitated AHF must contain a minimum of how many international units of Factor VIII? | 80 international units. FDA requires that 4 representatives units be tested for factor VIII levels of 80 IU or higher. |
| An assay of plasma from a bag of Cryoprecipitated AHF yields a concentration of 9 IU of Factor VIII per mL of Cryoprecipitated AHF. If volume is 9 mL, what is Factor VIII content of the bag in IU? | 81 9 IU of Factor VIII is PER mL and volume is 9 mL. 9x9=81 |
Created by:
Desi335