WorksheetsB-B-2
Total questions: 22
Worksheet time: 19mins
Pretransfusion procedure that is composed with a series or test to ensure the safety of the recipient during blood transfusion.
(a)
preferred specimen for compatibility testing
(a)
which of the following is true
Plasma may cause small fibrin clots to form which may be difficult to distinguish from true agglutination
Serum may cause small fibrin clots to form which may be difficult to distinguish from true agglutination
Serum may inactivate complement so that antibodies may not be detected
Plasma may activate complement so that antibodies may not be detected
age of specimen
(a)
requires the guidelines in crossmatching
(a)
The AABB requires that patient samples must be stored between 1-6ºC for at least
7 days after transfusion. WHY?
(a)
If the patient’s ABO group cannot be satisfactorily determined and immediate transfusion is essential, what should be utilized?
(a)
If Rh type of the recipient cannot be determined and transfusion is essential, what blood is transfused?
(a)
In X matching, what indicates incompatibility
clumps
agglutination
no clumps
hemolysis
required in major crossmacth
donor's serum
recipient's serum
donor's blood
recipient's blood
Minor crossmatching is replaced with
(a)
technique in which non – agglutinating IgG are detected
Saline Technique
High protein
AHG
broad
Albumin Technique detects
(a)
INCUBATION TIME FOR BROAD SPECTRUM
(a)
Valid result in AHG
+ CC
+ AHG
- CC
- AHG
These causes invalid result in AHG except:
expired reagent
incomplete washing
+ AHG
neutralized AHG
Major xmatch : (-)
minor crossmatch: (+)
RELEASE DONOR UNIT AS PACKED RED BLOOD CELL
DO NOT RELEASE
NEVER RELEASE
RELEASE
Incompatible major xmatch and compatible minor
release
dont release
never release
release donor unit as packed red blood cell
AB scree: -
AC: -
Major xmatch: +
Patient with low incidence antibody
Patient alloantibody
Rouleaux
ABO typing error
+ DAT
AB: +
AC: +
XMACTH: +
Patient alloantibody
Patint autoantibody
+ DAT
ABO typing error
carriers of stroma free hb solns
PHP
Polybrene
Polyheme
PGG-Hb
PEG-Hb
excellent gas solvents of PCFS
(a)
