Deck 28: Laboratory Information Systems in the Blood Bank

Question 1

What is the overall purpose of a blood bank information system?

A) To track a blood product from the time of donation to the point of final disposition
B) To store donor history information
C) To assist blood bank personnel in selection of appropriate components for transfusion
D) To keep a daily inventory of all blood components

Answer 1

A

Question 2

Which of the following best describes software?

A) Physical pieces of equipment that can be seen and touched
B) The "core" of the information system
C) Programmed instructions that tell computer how to operate and manipulate the data
D) A mechanism for connecting one computer system to another through a telephone line

Answer 2

C

Question 3

How does the blood bank information system aid the technologist in selecting RBCs for a patient who had previously developed anti-Jk^a, but whose current antibody screen is negative?

A) Alerts the tech to previous phenotyping results
B) Reveals a history of anti-Jk^a
C) Reveals a history of anti-Jk^b
D) None of the above

Answer 3

B

Question 4

What hardware device controls the interpretation and execution of software instructions?

A) Modem
B) Central processing unit
C) Central ray tube
D) File server

Question 5

What information might be found in a blood bank computer system?

A) Inventory of blood components
B) Antibodies identified in a patient
C) The last date of donation for a blood donor
D) All of the above

Question 6

When a new hospital patient is registered through admissions, the demographic information is entered into the hospital information system (HIS). Blood bank technologists are able to access the patient information through which of the following?

A) Operating system software
B) Database
C) Interface software
D) None of the above

Question 7

What are the two components of computer terminals?

A) Central receiving terminal/keyboard
B) Monitor/keyboard
C) Cathode ray tube/disk
D) Central processing unit/keyboard

Question 8

What information is accessed from a component barcode sticker?

A) Blood type
B) Unit number
C) Expiration date
D) All of the above

Question 9

Software is the establishment of documented evidence that provides a high degree of assurance that the information system will consistently function as expected.

A) regulation
B) application
C) validation
D) maintenance

Question 10

A blood bank wishes to upgrade its computer system so that it will automatically interpret the ABO group based on the results of the forward and reverse grouping tests. This upgrade would be achieved through the:

A) applications software.
B) operating system software.
C) interface software.
D) none of the above.

Question 11

When does computer software for the laboratory need to be validated?

A) Before sale by the vendor
B) After installation at the laboratory.
C) Both of these
D) Neither of these

Question 12

A transfusion service employee proceeds to issue blood to an O-positive patient. She enters the unit number via the keyboard. The unit is typed as A-positive. What should appear on the CRT screen at this point?

A) A prompt message asking what printer should print the compatibility tags
B) A message that the issue process is complete
C) A warning message signaling incompatibility between patient and donor
D) None of the above

Question 13

The final label verification step performed at the donation facility will prevent:

A) the release of blood that tests positive for hepatitis markers.
B) transfusion reactions.
C) the release of ABO incompatible blood.
D) donor reactions.

Question 14

Blood bank information systems should perform all of the following except:

A) verify donor testing results to ensure units are suitable for transfusion.
B) identify the location of all units at any given time.
C) recognize units that are outdated.
D) verify the accuracy of input demographic data.

Question 15

Computer technical support personnel would need the use of a to access the blood bank information system to troubleshoot system problems.

A) cathode ray tube
B) laser
C) modem
D) tape drive

Question 16

During the morning run, the computer system went offline for maintenance. This situation is appropriately referred to as, and there should be a backup system in place.

A) break time
B) downtime
C) a disaster
D) backload

Question 17

A unit of blood was irradiated for a patient. It had 29 days before it expired. The unit's original expiration date was January 1, 2012. What expiration date should the LIS have given it when the modification was recorded?

A) January 1, 2012
B) January 2, 2012
C) December 31, 2012
D) 24-hour expiration

Question 18

Data from donor history cards would be stored in what type of file?

A) Static file
B) Antibody file
C) Dynamic file
D) Review file

Question 19

How can information systems in a blood center assist the managerial staff?

A) By isolating the HIV-positive donor population
B) By tabulating deficiencies in cap surveys
C) By monitoring the number of donors deferred
D) None of the above

Question 20

Many accreditation agencies have checklist items that emphasize the responsibilities of operating an information system. Which of the following is not a volunteer accreditation agency?

A) CAP
B) AABB
C) FDA
D) Joint Commission

Question 21

Which of the following should be included in the construction of a truth table for the blood bank?

A) Forward grouping reactions
B) Reverse grouping reactions
C) Interpretation of the grouping reactions
D) All of these

Question 22

Decisions made by a computer system without human intervention is what type of control?

A) Decision support
B) Process
C) Quality
D) None of these

Question 23

A computer validation test plan should include which of the following?

A) Control functions and documentation methods
B) Data entry methods and results review
C) Specific test cases and acceptance criteria
D) All of these

Question 24

During a validation of a blood bank computer system, a zero is entered for an O in an ABO result field. This type of validation is an example of which test?

A) Boundary testing
B) Normal testing
C) Invalid test cases
D) Special test cases

Question 25

Documentation of previous antigen typing results in donor files is beneficial when:

A) there is a patient with gastrointestinal bleeding in the emergency room.
B) specific antigen-positive units are needed for a future surgery.
C) specific antigen-negative units are needed for a future surgery.
D) fresh frozen plasma is needed on a factor IX-deficient patient.

Question 26

Which of the following is a function of the operating system software?

A) Result entry of serologic tests
B) Transfer of information from the blood bank system to the HIS
C) Transfer of data onto a disk
D) Storage of data in the information system

Question 27

Through what mechanism is security of computer applications maintained?

A) User name
B) User combination
C) User keys
D) User password

Question 28

One way for mobile or satellite blood-collecting facilities to access donor histories is to a copy of donor records from the blood bank information system to portable computers.

A) purge
B) upload
C) download
D) barcode

Question 29

Decisions made by a user based on computer displayed information is what type of control?

A) Decision support
B) Process
C) Quality
D) None of these

Question 30

A 17-mL aliquot of CMV-negative RBCs is requested for a newborn. The mother's antibody screen was positive and anti-Fy^a was identified. A sample from the aliquot was tested with anti-Fy^a and found to be negative for the antigen. This information should be documented on which of the following?

A) Aliquot unit
B) Original unit
C) Donor file
D) All of the above

Question 31

When entering an expiration date into the computer that exceeds the possible shelf life of a blood component you receive a warning box. This is what type of control?

A) Decision support
B) Process
C) Quality
D) None of these

Question 32

A warning message displayed to alert the user of invalid ABO grouping test results is a function of the:

A) operating system.
B) truth tables.
C) static database files.
D) dynamic database records.

Question 33

What kind of software allows the interchange of information between two different computer systems?

A) Application
B) Interface
C) Operating system
D) HIS

Question 34

Which of these is NOT included in a computer validation test plan?

A) Analysis of the cost of the software
B) Determination of documentation methods
C) Review of results and corrective actions
D) Validation using specific test cases

Question 35

In a computerized transfusion service with six terminals: two terminals are used to crossmatch RBCs for a patient with gastrointestinal bleeding, one terminal is used to enter blood products recently delivered by the blood supplier, one is used to enter type and screen results, and one is used to enter patient test orders. This is an example of a validation test case.

A) normal
B) boundary
C) stress
D) special

Question 36

Special test cases when validating a laboratory computer system do which of the following?

A) Assess the system's ability to recognize and reject incorrect inputs.
B) Force the evaluation of data that are slightly below or slightly above valid ranges.
C) Make the system react to unusual inputs.
D) Use typical blood bank inputs to produce normal or routine outputs.

Question 37

What is the function of a system manager?

A) To implement new software updates
B) To assign access codes to new users
C) To add new data items to the database
D) All of the above

Question 38

Standard operating procedures must include computer functions that are part of the blood bank's technical procedures, such as the issuance of blood components.

Question 39

For ready access by its processor, where does the computer hold information such as the operating system, application programs, and data?

A) In its archive
B) In ROM
C) In RAM
D) On the hard disk