transfusion pp Flashcards
(98 cards)
The source of antbody heterogeneity is:
Gene rearrangement in the peripheral immune organs
Gene rearrangement in the central immune organs
Gene inserton in the fetus
Hereditary mutaton
The source of antbody heterogeneity is:
Gene rearrangement in the peripheral immune organs
Gene rearrangement in the central immune organs
Gene inserton in the fetus
Hereditary mutaton
Which is the most common type of genetc variants among blood group antgens?
Frameshif
Splice site
Large deleton
Single nucleotde polymorpisns (SNP)
Which is the most common type of genetc variants among blood group antgens?
Frameshif
Splice site
Large deleton
Single nucleotde polymorpisns (SNP)
The most common inherited bleeding disorder
Factor XI defciency
Haemophilia A
Von Willebrand’s disease
Factor VII defciency
The most common inherited bleeding disorder
Factor XI defciency
Haemophilia A
Von Willebrand’s disease
Factor VII defciency
The most likely source of Yersinia contaminaton of a red blood cell unit is
The skin fora of the donor
Transient asymptomatc donor bacteremia
Contamiaton of the plastc bag
The skin fora of the laboratory staf
The most likely source of Yersinia contaminaton of a red blood cell unit is
The skin fora of the donor
Transient asymptomatc donor bacteremia
Contamiaton of the plastc bag
The skin fora of the laboratory staf
Indicatons for intraoperatve cell salvage in adults and children EXCEPT
Major hemorrhage
Patents with rare blood groups or multple blood group antbodies
Surgery where the antcipated blood loss is >20% of the patents estmated blood volume
Electve or emergency surgery in patents with risk factors for bleeding
Indicatons for intraoperatve cell salvage in adults and children EXCEPT
Major hemorrhage
Patents with rare blood groups or multple blood group antbodies
Surgery where the antcipated blood loss is >20% of the patents estmated blood volume
Electve or emergency surgery in patents with risk factors for bleeding
Which of the following statements is NOT true?
Syphilis can be transmitted by transfusion
Transfusion related bacterial infections are more often related to platelet products than to red blood cell transfuse
Blood products with bacterial contamination do not always cause severe infections
Transfusion related bacterial infectons and hemolytic reactions cause completely different clinical symptoms
Which of the following statements is NOT true?
Syphilis can be transmitted by transfusion
Transfusion related bacterial infections are more often related to platelet products than to red blood cell transfuse
Blood products with bacterial contamination do not always cause severe infections
Transfusion related bacterial infectons and hemolytic reactions cause completely different clinical symptoms
The positive selection means
All macrophages are surviving in lymph nodes if recognizing self antigens
All macrophages surviving in lymph nodes if not recognizing self MHC
All T-cells are killed in thymus if not recognizing self MHC
All T-cells are killed in the thymus if not recognizing self antigens
The positive selection means
All macrophages are surviving in lymph nodes if recognizing self antigens
All macrophages surviving in lymph nodes if not recognizing self MHC
All T-cells are killed in thymus if not recognizing self MHC
All T-cells are killed in the thymus if not recognizing self antigens
The most widespread screening tests to prevent transfusion transmitted infections are:
PCR for hepatitis A,B,C,D and E viruses and anti-HIV
Anti-Hb’s, anti-HAV, zikavirus PCR, anti HCV, infuenza serology
HBeAg, anti-HBe, anti-HCV, anti-HIV, syphilis serology (VDRL), EBV PCR
HBsAg, anti HBc, anti-HCV, Anti HIV, HCV PCR, Syphilis serology (VDRL)
The most widespread screening tests to prevent transfusion transmitted infections are:
PCR for hepatitis A,B,C,D and E viruses and anti-HIV
Anti-Hb’s, anti-HAV, zikavirus PCR, anti HCV, infuenza serology
HBeAg, anti-HBe, anti-HCV, anti-HIV, syphilis serology (VDRL), EBV PCR
HBsAg, anti HBc, anti-HCV, Anti HIV, HCV PCR, Syphilis serology (VDRL)
Who discovered the ABO blood group system?
a.
b.
c. Karl Landsteiner
d.
Who discovered the ABO blood group system?
a.
b.
c. Karl Landsteiner
d.
The most frequent cause of serious lethal transfusion associated adverse events:
Infections transmitted by blood transfusions
TRALI
Incorrect blood component transfused
Acute transfusion reactions
The most frequent cause of serious lethal transfusion associated adverse events:
Infections transmitted by blood transfusions
TRALI
Incorrect blood component transfused
Acute transfusion reactions
Which therapeutic approach is inappropriate in patients with common variable immunodeficiency (CIVD)?
Subcutaneous immunoglobulin substitution
Interferon gamma
Targeted antibiotic treatment
Intravenous immunoglobulin substitution
Which therapeutic approach is inappropriate in patients with common variable immunodeficiency (CIVD)?
Subcutaneous immunoglobulin substitution
Interferon gamma
Targeted antibiotic treatment
Intravenous immunoglobulin substitution
The primary immune organs are:
Bone marrow and spleen
Spleen and thymus
Bone marrow and skin
Bone marrow and thymus
The primary immune organs are:
Bone marrow and spleen
Spleen and thymus
Bone marrow and skin
Bone marrow and thymus
The T-cell receptors are consisting of:
Two variable chains
One variable and one constant chain
Two variable and two constant chains
Four variable chains
The T-cell receptors are consisting of:
Two variable chains
One variable and one constant chain
Two variable and two constant chains
Four variable chains
Red blood cell antigens on the platelet membrane have no importance in transfusion practice EXCEPT:
ABO antigens
Kell antigens
Antigens of the P-system
Lewis antigens
Red blood cell antgens on the platelet membrane have no importance in transfusion practice EXCEPT:
ABO antigens
Kell antigens
Antigens of the P-system
Lewis antigens
Which phenotype is caused by an inactive ABO glycosil-transferase?
a. B
b. A
c. O
d. AB
Which phenotype is caused by an inactive ABO glycosil-transferase?
a. B
b. A
c. O
d. AB
Which of the following symptoms require urgent therapy for a patient with delayed haemolytic transfusion reaction?
Mild jaundice
Shivering
Oliguria
A slightly elevated body temperature (37,5°C)
Which of the following symptoms require urgent therapy for a patient with delayed haemolytic transfusion reaction?
Mild jaundice
Shivering
Oliguria
A slightly elevated body temperature (37,5°C)
what is the HLA haplotype?
The collection of specific platelet antigens
Special characteristics of immune system cells
Immunological signal transduction molecules linked to each other
The group of HLA alleles physically linked on a single chromosome
what is the HLA haplotype?
The collection of specifc platelet antigens
Special characteristics of immune system cells
Immunological signal transduction molecules linked to each other
The group of HLA alleles physically linked on a single chromosome
The advantages of intraoperative cell salvage, EXCEPT:
Functionally superior cells
Normothermic
Lower risk of infectious diseases
Low levels of 2,3-DPG
The advantages of intraoperative cell salvage, EXCEPT:
Functionally superior cells
Normothermic
Lower risk of infectious diseases
Low levels of 2,3-DPG
what is the mechanism by which mesenchymal stem cells enhance the regeneration of damaged tissue?
Synthesis of pro-coagulation factors
Synthesis of trophic and/or anti-apoptotic factors
Oxygen transport to the site of damage
Replacement of damaged cells of affected tissue
what is the mechanism by which mesenchymal stem cells enhance the regeneration of damaged tissue?
Synthesis of pro-coagulation factors
Synthesis of trophic and/or anti-apoptotic factors
Oxygen transport to the site of damage
Replacement of damaged cells of affected tissue
The optimal rate of blood donation activity (donations/inhabitants)
a. 7%
b. 3%
c. 10%
d. 5%
The optimal rate of blood donation activity (donations/inhabitants)
a. 7%
b. 3%
c. 10%
* *d. 5%**
Anemia tolerance is independent of
a. Age
b. The speed of anemia…
c. Sex
d. The severity of anemia
Anemia tolerance is independent of
a. Age
b. The speed of anemia…
c. Sex
d. The severity of anemia
Important information in the history with respect to allo-immunisation
Previous pregnancies and their process
Occurrence of autoimmune disease
Number of siblings
Occupation
Important information in the history with respect to allo-immunisation
Previous pregnancies and their process
Occurrence of autoimmune disease
Number of siblings
Occupation
The risk of transfusion related potassium toxicity can be decreased by
Warming the RBC product to body temperature
Freezing the RBC product
Utilizing fresh (not older than 1 week) RBC product Nora?
irradiation
The risk of transfusion related potassium toxicity can be decreased by
Warming the RBC product to body temperature
Freezing the RBC product
Utilizing fresh (not older than 1 week) RBC product (?)
irradiation
Disease frequently causing platelet function alterations, except
a. Uraemia
b. Paraproteinanemia
c. Hyperuricaemia (gout)
d. Liver failure
Disease frequently causing platelet function alterations, except
a. Uraemia
b. Paraproteinanemia
* *c. Hyperuricaemia (gout)**
d. Liver failure