1 SAFETY PRACTICES AND QUALITY IN THE HEMATOLOGY LABORATORY Flashcards
The National Patient Safety Goals include:
A. use of the patient identifiers
B. use of proper evacuated collection tube anticoagulants
C. proper disinfection of laboratory counter tops
D. proper donning of latex gloves
A. use of the patient identifiers
The primary intended purpose of the laboratory safety manual is to:
A. protect the patient and laboratory personnel
B. protect laboratory and other hospital personnel
C. comply with local health and state regulatory requirements
D. comply with OSHA regulations
A. protect the patient and laboratory personnel
If a blood specimen is spilled on a laboratory bench or floor area, the first step in cleanup should be:
A. wear gloves and a lab coat
B. absorb blood with disposable towels
C. clean with freshly prepared 1% chlorine solution
D. wash with water
B. absorb blood with disposable towels
The likelihood of infection after exposure to HBV-infected or HIV-infected blood or body fluids depends the least on the:
A. source (anatomical site) of the blood or fluid
B. concentration of the virus
C. duration of the contact
D. presence of nonintact skin
A. source (anatomical site) of the blood or fluid
Standard precautions have been instituted in clinical laboratories to prevent __________ exposures of healthcare workers to bloodborne pathogens such as HIV and HBV.
A. parenteral
B. nonintact mucous membrane
C. nonintact skin
D. all of the above
D. all of the above
Exposure to ______________ constitutes the major source of HIV and HBV infection in health care personnel.
A. sputum
B. blood
C. urine
D. semen
B. blood
Diluted bleach for disinfecting work surfaces, equipment, and spills should be freshly prepared by making a (a)___________ dilution of household bleach. This dilution requires (b)____________ mL of bleach diluted to 100 mL with H2O.
(a)
A. 1:5
B. 1:10
C. 1:20
D. 1:100
(b)
A. 1
B. 10
C. 25
D. 50
(a)
B. 1:10
(b)
B. 10
In which of the following laboratory situations is a verbal report permissible?
A. When the patient is going directly to the physician’s office and would like to have the report available
B. When the report cannot be found at the nurse’s station
C. When emergency test results are needed by a physician
D. None of the above
D. None of the above
The most frequent type of laboratory specimen error is:
A. preanalytical error
B. analytical error
C. postanalytical error
D. A or B
D. A or B
The delta check is used to detect:
A. the use of the correct anticoagulant
B. the time of storage of a tested specimen
C. the difference between current and past patient results
D. the proper collection time of a patient specimen
C. the difference between current and past patient results
Which of the following errors represent a preanalytical (preexamination) error?
A. Wrong assay performed
B. Failure to run a normal control specimen when testing
C. Calling the ER with stat results
D. Incorrect labeling of a specimen
D. Incorrect labeling of a specimen
Instrument calibration should be performed, at least, according to CLIA.
A. Once a year
B. Twice a year
C. Three times a year
D. Daily
B. Twice a year
A control specimen is:
A. a known value in a specimen similar to a patient specimen
B. closeness to the true value
C. the process of monitoring accuracy
D. comparison to a known physical constant
A. a known value in a specimen similar to a patient specimen
The term accuracy means:
A. a known value in a specimen similar to a patient specimen
B. closeness to the true value
C. the process of monitoring accuracy
D. comparison to a known physical constant
B. closeness to the true value
The term precision means:
A. how close test results when repeated
B. a purified substance of a known composition
C. the process of monitoring accuracy and reproducibility of known control results
D. the value is unknown
A. how close test results when repeated
