Laboratory Information Systems in the Blood Bank

Question 1

1. Components of an information system consist of all of
   the following except:
   a. Hardware
   b. Software
   c. Validation
   d. People

Answer 1

c. Validation

Question 2

2. To be in compliance with regulatory and accreditation
   agency requirements for blood bank information systems,
   blood banks must maintain SOPs for all of the following
   except:
   a. Vendor validation testing
   b. Computer downtime
   c. System maintenance
   d. Personnel training

Answer 2

a. Vendor validation testing

Question 3

3. A validation test case that assesses the system’s ability to
   recognize an erroneous input is called:
   a. Normal
   b. Boundary
   c. Stress
   d. Invalid

Answer 3

d. Invalid

Question 4

4. An example of interface software functionality is:
   a. The entry of blood components into the blood bank
   database
   b. The transmission of patient information from the HIS
   into the blood bank system
   c. The printing of a workload report
   d. Preventing access to the system by an unauthorized
   user

Answer 4

b. The transmission of patient information from the HIS
into the blood bank system

Question 5

5. Backup copies of the information system:
   a. Can be used to restore the information system data and
   software if the production system is damaged
   b. Are used to maintain hardware components
   c. Are performed once a month
   d. Are created any time changes are made to the system

Answer 5

a. Can be used to restore the information system data and
software if the production system is damaged

Question 6

6. User passwords should be:
   a. Shared with others
   b. Kept confidential
   c. Posted at each terminal
   d. Never changed

Answer 6

b. Kept confidential

Question 7

7. Preventing the issue of an incompatible blood component is an example of:
   a. Inventory management
   b. Utilization review
   c. System security
   d. Control function

Answer 7

d. Control function

Question 8

8. Information is stored in a collection of many different
   files called the:
   a. Database
   b. Configuration
   c. Hardware
   d. Disk drive

Answer 8

a. Database

Question 9

9. Application software communicates with this type of
   software to retrieve data from the system disks:
   a. Interface
   b. Operating system
   c. Security
   d. Program

Answer 9

b. Operating system

Question 10

10. Validation testing for software should consider all of the
    following items except:
    a. Data entry methods
    b. Control functions
    c. Performance of testing in production database
    d. Invalid data

Answer 10

c. Performance of testing in production database

Question 11

11. Complete the truth table below for a negative antibody
    screen using two screening cells (SCI, SCII) at the immediate spin (IS), 37°C (37), and antihuman globulin
    (AHG) phases.

Answer 11

Question 12

12. During validation testing, a computer user entered the
    following results for an antibody screen test:

After the user verified the entries, the monitor displayed
the following message: “Invalid test results.” What caused the error message to display?

a. An invalid entry was made in the check cells (CC)
column
b. The truth table was set up incorrectly
c. The interpretation does not correlate with the test
entries
d. The interface to the laboratory computer system is
down

Answer 12

b. The truth table was set up incorrectly