Exam 28: Laboratory Information Systems in the Blood Bank

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?

Through what mechanism is security of computer applications maintained?

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

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 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?

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

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

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?

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

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?

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

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.

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

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

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?

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

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

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

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

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.