Lab Safety And Quality Assurance

Question 0

OSHA

Answer 0

Occupational Safety and Health Administration

Question 1

Sadety standards for clinical laboratories are initiated, governed, and reviewed by these agencies or committees

Answer 1

OSHA
CLSI
CDC
CAP
TJC

Question 2

A nonprofit educational organization providing a forum for development, promotion, and use of national and international standards

Answer 2

Clinical And Laboratory Standards Institute (CLSI)

Question 3

Part of the U.S. Department of Health and Human Services’ Public Health Service

Answer 3

Centers for Disease Control and Prevention

Question 5

CAP

Answer 5

College of American Pathologists

Question 6

Used when opening rubber-stoppered test tubes to minimize aerosol production (introduction of substances into the air)

Answer 6

Gauze square

Question 7

Used for pipetting

Answer 7

Autodilutors or safety bulb

Question 8

Most important way to prevent cross contamination and the spread of the disease

Answer 8

Hand washing

Question 9

All work surfaces should be cleaned and sanitized at the beginning and end of work with

Answer 9

1:10 dilution household bleach

Question 10

Managing spills in a clinical laboratory

Answer 10

Wear gloves and coat
Absorb the blood with disposable towel
Using 1:10 diluted bleach, clean the spill site
Wipe down the spill site with paper towels soaked with diluted bleach
Place disposable waste materials into biohazard container

Question 11

Body fluid specimens, including blood, must be placed in

Answer 11

Biohazard containers

Question 12

Primary infectious waste containers

Answer 12

Red plastic bags

Question 13

Secondary waste container

Answer 13

Metal or plastic cans

Question 14

Terminal disposal of infectious waste

Answer 14

Incineration

Question 15

Alternative method for terminal disposal

Answer 15

Terminal sterilization by autoclaving

Question 16

Phases of testing

Answer 16

Pre analytical
Analytical
Post analytical

Question 17

Describes how close a test result it to the true value

Answer 17

Accuracy

Question 18

Describes how close the test results are to one another when repeated analyses of the same specimen are performed

Answer 18

Precision

Question 19

Proportion of subjects with a specific disease or condition who have a positive test result

Answer 19

Sensitivity

Question 20

Proportion of subjects without the specific disease or condition who have a negative test result

Answer 20

Specificity

Question 21

Proportion of a population who have the disease

Answer 21

Prevalence

Question 22

Number of subjects who have the disease within a defined period per 100,000 population

Answer 22

Incidence

Question 23

Has known value and is similar in composition to the patient’s blood

Answer 23

Control specimen

Question 24

Process that destroys the complement activity

Answer 24

Inactivation

Question 25

Known to interfere with the reactions of certain syphilis tests and complement components

Answer 25

Complement

Question 26

Can agglutinate latex particles and cause a false positive reaction in latex passive agglutination assays

Answer 26

Complement

Question 27

Cause lysis of the indicator cells in hemagglutination

Answer 27

Complement

Question 28

Complement in body fluids can be inactivated by heating to

Answer 28

56 oC for 30 minutes

Question 29

Reinactivation of complement is done by heating it to

Answer 29

56 oC for 10 minutes

Question 30

Used in the immunology-serology lab for the quantitative transfer of reagents and the preparations of serial dilution of specimens such as serum

Answer 30

Pipettes

Question 31

Used to deliver the amount of liquid contained between two calibration marks in a cylindrical tube or pipette

Answer 31

Graduated pipettes

Question 32

Recognized by a frosted ring at the noncalibrated end with calibrations extending to the tip

Answer 32

Serologic pipettes

Question 33

Allow fast, repetitive measurement and delivery of solutions of equal volumes

Answer 33

Automatic pipettes

Question 34

Piston operated devices that allow repeated, accurate, reproducible delivery of specimens, reagents, and other liquids requiring measurement in small amounts

Answer 34

Micropipettors

Question 35

Used for measuring serial amounts of relatively small volumes of the same liquid. The volume dispensed is determined by the pipettor setting

Answer 35

Automatic dispensers or syringes

Question 36

Used to prepare a number of different samples for analysis in automated instruments. These devices pipette a slected aliquot of sample and diluent into the receiving vessel.

Answer 36

Diluter-dispensers

Question 37

Dual-piston type, with one used for the sample and the other for the diluent or reagent

Answer 37

Diluter-dispensers

Question 38

Contain positive and negative controls

Answer 38

Reagent test kits

Question 39

Formerly known as Joint Commission on Accreditation of Healthcare Organization (JCAHO)

Answer 39

The Joint Commission (TJC)