Deck 9: Blood Bank Automation for Transfusion Services

Question 1

A negative reaction in the MTS Gel test would appear as a:

A)pellet of cells at the bottom of the column.
B)layer of cells at the top of the column.
C)cells evenly distributed throughout the column.
D)cells distributed only in the bottom half of the column.

Answer 1

A
The cells at the bottom of the column indicate a negative reaction because no agglutination took place with the antibody suspended in the gel.

Question 2

The PROVUE,TANGO,and NEO have the ability to perform all of the following tests except:

A)ABO/D typing.
B)antibody ID panels.
C)direct antiglobulin test.
D)None of the above are correct.

Answer 2

D
All instruments have the ability to perform ABO/D typing,antibody panels,and the DAT.

Question 3

LIS interfaces is an important component in automation because of its potential in:

A)recognizing errors in sample ID.
B)flagging discrepancies with previous test results.
C)providing a mechanism for the electronic crossmatch.
D)all of the above.

Answer 3

D
The laboratory information system interface (LIS)is an essential component that provides for correct sample recognition and comparison with prior records;in doing this,LIS meets some of the criteria for the electronic crossmatch.

Question 4

An advantage of the MTS Gel technology over test tubes when performing panels is:

A)shorter centrifugation time.
B)decreased reagent cost.
C)reduced patient sample requirements.
D)the incubation step is optional.

Question 5

True or False: The determination of the ABO and D type by the NEO and TANGO uses the same solid phase red cell adherence technique that is used for the antibody screen.

A)True
B)False

Question 6

The TANGO,PROVUE,and NEO all use which of the following reagents or components used in the indirect antiglobulin test?

A)Washing mechanism
B)Centrifuge
C)Indicator cells
D)Antihuman globulin

Question 7

Assays using Gel technology are performed with which of the following instruments:

A)ECHO
B)PROVUE
C)NEO
D)TANGO

Question 8

Before implementing new automation technology into the transfusion service setting,which of the following is required?

A)Validation
B)Training
C)Written procedures
D)All of the above

Question 9

A smooth layer of cells in the bottom of the well is interpreted as a/an _____ reaction when the solid phase testing is completed for the antiglobulin test:

A)positive
B)negative
C)indeterminate
D)mixed field

Question 10

Random access is an important feature in selecting an automated instrument for testing in the transfusion service.Random access refers to:

A)ability of multiple users to sign into the system.
B)the recognition of various types of barcodes.
C)the need for minimal maintenance procedures.
D)the ability to accommodate STAT testing.