Deck 25: Laboratory Information Systems

Question 1

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

Answer 1

C

Question 2

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

Answer 2

C

Question 3

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 3

A

Question 4

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 5

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 6

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 7

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 8

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 9

A blood bank wishes to upgrade their 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 10

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

Question 11

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 12

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 13

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 14

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 15

What information is accessed from a component barcode sticker?

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

Question 16

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 17

Which of the following could be considered a final disposition of a unit?

A) Issued
B) Transfused
C) Available
D) Reserved

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

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 20

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

Question 21

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 22

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 23

Which of the following would not be considered a modification to a blood product?

A) Irradiation
B) CMV-negative status
C) Leukocyte reduction
D) Pooling

Question 24

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

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

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

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

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

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 29

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 30

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 31

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 32

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