Term
| What are the symptoms for an intravascular hemolytic reaction? |
|
Definition
| Shock, Renal Failure, Death |
|
|
Term
| If someone has receivd RhIG @ 28 weeks, what will be the titer? |
|
Definition
Low, less than 1:32
(Often 1:8) |
|
|
Term
| Which AHG is used in a baby DAT? |
|
Definition
|
|
Term
| If a warm auto is present, how is it detected? |
|
Definition
| IAT+ including +Auto at AHG stage |
|
|
Term
| If donor has +DAT, what happens in the crossmatch? |
|
Definition
| Incompatibility in AHG stage |
|
|
Term
| If a unit is mistyped, how does this effect a crossmatch? |
|
Definition
| All reactions are positive |
|
|
Term
| What could happen if wrong patient received blood? |
|
Definition
|
|
Term
| How is blood issued in an emergency situation? |
|
Definition
-Doctor must sign release form
-Give O= first; O+ if not a female of childbearing age
-If female of childbearing age and give Rh+ blood, give RhIG if she is Rh= |
|
|
Term
| Will irradiated blood be helpful for platelets? |
|
Definition
|
|
Term
| If I & K ABYs are present, what phenotype should be given and should other precautions be made? |
|
Definition
| Give K= blood; Prewarm prior to transfusing |
|
|
Term
| What should be given if Plt count is normal, PT increased, PTT increased? |
|
Definition
|
|
Term
Is this an example of HDN:
Baby is Rh+ DAT=
Mom is Rrh = IAT = |
|
Definition
|
|
Term
| Could someone who is healthy, hct of 38% give blood for an autologous donation? |
|
Definition
|
|
Term
| Can Plts be contaminated by bacteria? |
|
Definition
| Yes, because it is stored at RT |
|
|
Term
| Which hepatitis can be contracted from a transfusion? |
|
Definition
|
|
Term
| Can HIV be transmitted by pooled cryo? |
|
Definition
|
|
Term
| Can HIV be transmitted in pooled products? |
|
Definition
| Yes, it increases the chances; |
|
|
Term
True or False:
Plasma centers have a high risk of transmission of HIV |
|
Definition
|
|
Term
| What amount of blood loss can occur and the patient still feel well? |
|
Definition
|
|
Term
| During acute blood loss, is blood directed to the extremities? |
|
Definition
|
|
Term
| What adverse reaction is experienced during apheresis that is unique to aphaeresis? |
|
Definition
|
|
Term
| What blood type should be given if the blood type changed after a BMT? |
|
Definition
| Depends on the nature of the incompatibility and DAT results |
|
|
Term
| What are examples of immune transfusion reactions? |
|
Definition
|
|
Term
| What is an exampled of a delayed adverse reaction? |
|
Definition
|
|
Term
| In a BMT, is HLA or ABO of greater importance? |
|
Definition
|
|
Term
| What are the consequences of DHTR? |
|
Definition
Decreased hematocrit
Increased bilirubin |
|
|
Term
| Has the p24 HIV AGN test eliminated the window period? |
|
Definition
|
|
Term
| Should a mom who is D=, weak D+ receive RhIG? |
|
Definition
|
|
Term
| If a patient is experiencing platelet refractory problems, will irradiating the unit be required? |
|
Definition
|
|
Term
| When would you NOT want to salvage blood? |
|
Definition
| Cancer such as tumor removal |
|
|
Term
| How much will random platelets increase the platelet count? |
|
Definition
|
|
Term
Febrile or Allergic:
HLA ABYs |
|
Definition
|
|
Term
Febrile or Allergic:
IgA deficient recipient reacts to donor's blood |
|
Definition
|
|
Term
Febrile or Allergic:
Rash and hives |
|
Definition
|
|
Term
Febrile or Allergic:
Leukodepleted products are used |
|
Definition
|
|
Term
Febrile or Allergic:
Use antihistamines |
|
Definition
|
|
Term
Intravascular or Extravascular Hemolysis:
Several units of Group A is given to group O person |
|
Definition
|
|
Term
Intravascular or Extravascular Hemolysis:
Reaction occurs sever days after transfusion |
|
Definition
|
|
Term
Intravascular or Extravascular Hemolysis:
Associated with IgG ABYs |
|
Definition
|
|
Term
Intravascular or Extravascular Hemolysis:
Most serious reaction |
|
Definition
|
|
Term
Intravascular or Extravascular Hemolysis:
May occur without prior exposure |
|
Definition
|
|
Term
Intravascular or Extravascular Hemolysis:
Associated with renal failure |
|
Definition
|
|
Term
| After centrifugation using the ID-MTS anti-IgG gel cards, a layer of agglutinated cells was observed at the top of two of the three screening cell microtubes. What should be done next? |
|
Definition
| Proceed to an ABY identification panel |
|
|
Term
| Indicator cells used in SPRCA are: |
|
Definition
| IgG coated RBCs that cross-link with IgG ABYs attached to the well |
|
|
Term
| A patient experiences chills and fever, nasuea, flushing, and lower back pain after infusion of 150 mL of blood. To rule out an acute hemolytic transfusion reaction, one should immediately: |
|
Definition
| Perform a DAT and visually compare pretransfusion and posttransfusion serum samples |
|
|
Term
| Dyspnea, severe headache, and peripheral edema occurring soon after transfusion are indicative of which type of transfusion reaction? |
|
Definition
|
|
Term
| What is a common cause of a febrile nonhemolytic transfusion reaction? |
|
Definition
| Recipient has ABY to the donor's HLA AGNs |
|
|
Term
| What plasma protein functions to bind hemoglobin following intravascular hemolysis? |
|
Definition
|
|
Term
| What adverse complication of transfusion can be prevented by the irradiation of blood components? |
|
Definition
|
|
Term
What is the following characteristic of:
Positive ABY screen in posttransfusion sample |
|
Definition
| Delayed Serologic transfusion reaction |
|
|
Term
| What blood system ABYs are commonly associated with delayed hemolytic transfusion reaction? |
|
Definition
|
|
Term
| A patient has experienced 2 febrile nonhemolytic reactions after RBC transfusion. What is the preferred blood component if future transfusions are necessary? |
|
Definition
|
|
Term
What is the following characteristic of:
IgA = recipient with Anti-IgA ABYs |
|
Definition
| Future transfusions with saline-washed RBCs |
|
|
Term
| What is the cause of transfusion-induced hemosiderosis |
|
Definition
|
|
Term
| What laboratory test is useful to detect clerical errors of sample identification in an acute transfusion investigation? |
|
Definition
|
|
Term
| What MO grows well at 4 degrees Celsius and may result in a transfusion-transmitted sepsis? |
|
Definition
|
|
Term
| What is the expected therapeutic effect in the recipient's hematocrit after the transfusion of 1 unit of RBCs? |
|
Definition
|
|
Term
| Anaphylactic reactions to transfusion are usually caused by what? |
|
Definition
| Anti-IgA in an IgA-deficient recipient |
|
|
Term
| A precipitious decrease in a recipient's platelet count after a transfusion is associated with: |
|
Definition
|
|
Term
| Wwhen evaluating a possible delayed hemolytic reaction, what is the best sample to use for bilirubin determination? |
|
Definition
|
|
Term
| In a delayed serologic or hemolytic transfusion reaction, the DAT is typically: |
|
Definition
| Weak Positive, mixed field |
|
|
Term
| The use of plasma from only male donors for transfusion is a preventive method for which type of transfusion reaction? |
|
Definition
|
|
Term
| Premedication with diphenhydramine (Benadryl) is a common procedure when administrating platelets to patients undergoing frequent transfusions. Which type of transfusion reaction does this medication prevent? |
|
Definition
|
|
Term
| Posttransfusion purpura following transfusion of a platelet or RBC unit is usually caused by: |
|
Definition
| Anti-HPA-1a made by the recipient |
|
|
Term
| Five days after a transfusion, a patient returned to his physician for postsurgical blood tests. It was noted that the Hemoglobin value decreased from 11 to 9 mg/dL during that time. The patient had not experienced any symptoms. To rule out a DHTR, what test should be performed? |
|
Definition
DAT on current sample, elution if possible
ABY screen on the current sample
Blood smear to check for spherocytes |
|
|
Term
| According to AABB Standards, continuing a transfusion after treatment with medication is allowed for what type of reaction? |
|
Definition
|
|
Term
Which of the following ABYs carries no risk of HDFN:
Anti-Le^a
Anti-C
Anti-K
Anti-S |
|
Definition
|
|
Term
| The appearance of spherocytes in a baby's blood smear after delivery is usually associated with: |
|
Definition
|
|
Term
| The rosette test used for screening for a fetomaternal hemorrhage can detect a bleed as small as: |
|
Definition
|
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