Book: Lab Safety

Question 1

In the urinalysis laboratory the primary source in the
chain of infection would be:

Answer 1

Specimen

Question 2

The best way to break the chain of infection is

Answer 2

Hand sanitizing

Question 3

The current routine infection control policy developed
by CDC and followed in all health-care settings is:

Answer 3

Standard Precautions

Question 4

An employee who is accidentally exposed to a possible blood-borne pathogen should immediately:

Answer 4

Report to a supervisor

Question 5

Personnel in the urinalysis laboratory should wear lab
coats that:

Answer 5

Are fluid-resistant

Question 6

All of the following should be discarded in biohazardous
waste containers except:

Urine specimen containers
Towels used for decontamination
Disposable lab coats
Blood collection tubes

Answer 6

Urine specimen containers

Question 7

An employer who fails to provide sufficient gloves for
the employees may be fined by the?

Answer 7

OSHA

Question 8

An acceptable disinfectant for blood and body fluid
decontamination is?

Answer 8

Sodium hypochlorite

Question 9

Proper handwashing includes all of the following
except:

Using warm water
Rubbing to create a lather
Rinsing hands in a downward position
Turning on the water with a paper towel

Answer 9

Turning on the water with a paper towel

Question 10

Centrifuging an uncapped specimen may produce a
biologic hazard in the form of?

Answer 10

Aerosols

Question 11

An employee who accidentally spills acid on his arm should immediately?

Answer 11

Hold the arm under running water for 15 minutes

Question 12

When combining acid and water, ensure that?

Answer 12

Acid is added to water

Question 13

An employee can learn the carcinogenic potential of
potassium chloride by consulting the

Answer 13

Material safety data sheets

Question 14

Employees should not work with radioisotopes if
they are?

Answer 14

Pregnant

Question 15

All of the following are safe to do when removing the
source of an electric shock except:

Pulling the person away from the instrument
Turning off the circuit breaker
Using a glass container to move the instrument
Unplugging the instrument

Answer 15

Pulling the person away from the instrument

Question 16

The acronym PASS refers to?

Answer 16

Operation of a fire extinguisher

Question 17

The system used by firefighters when a fire occurs in the laboratory is:

Answer 17

NFPA

Question 18

A class ABC fire extinguisher contains?

Answer 18

Dry chemicals

Question 19

The first thing to do when a fire is discovered is to?

Answer 19

Rescue persons in danger

Question 20

If a red rash is observed after removing gloves, the
employee?

Answer 20

May have developed a latex allergy

Question 21

Pipetting by mouth is?

Answer 21

Not acceptable in the laboratory

Question 22

The NPFA classification symbol contains information on all of the following except:

Fire hazards
Biohazards
Reactivity
Health hazards

Answer 22

Biohazards

Question 23

The classification of a fire that can be extinguished with water is:

Answer 23

Class A

Question 24

Employers are required to provide free immunization for:

Answer 24

HBV

Question 25

A possible physical hazard in the hospital is:

Answer 25

Running to answer the telephone

Question 26

Quality assessment refers to:

Answer 26

Quality of specimens and patient care

Question 27

During laboratory accreditation inspections, procedure manuals are examined for the presence of: Critical values Procedure references Procedures for specimen preservation All of the above

Answer 27

All of the above

Question 28

As supervisor of the urinalysis laboratory, you have just adopted a new procedure. You should:

Answer 28

Put a complete, referenced procedure in the manual

Question 29

Indicate whether each of the following would be considered at what phase: Reagent expiration date Rejecting a contaminated specimen Constructing a Levy-Jennings chart Telephoning a positive Clinitest result on a newborn Calibrating the centrifuge Collecting a timed urine specimen

Answer 29

Examination Pre-examination Examination Post-examination Examination Pre-examination

Question 30

The testing of sample from an outside agency and the comparison of results with participating laboratories is called?

Answer 30

Proficiency testing

Question 31

A color change that indicates that a sufficient amount of patient’s specimen or reagent is added correctly to the test system would be an example of:

Answer 31

Internal QC

Question 32

What steps are taken when the results of reagent strip QC are outside of the stated confidence limits? Check the expiration date of the reagent strip Run a new control Open a new reagent strips container All of the above

Answer 32

All of the above

Question 33

When a new bottle of QC material is opened, what information is placed on the label?

Answer 33

The date and the laboratory worker’s initials

Question 34

When a control is run, what information is documented? The lot number Expiration date of the control The test results All of the above

Answer 34

All of the above

Question 35

State a possible reason for an accreditation team to report a deficiency in the following situations: The urine microscopic reporting procedure has been recently revised

Answer 35

Review of the procedure by a designated authority has not been documented

Question 36

State a possible reason for an accreditation team to report a deficiency in the following situations: An unusually high number of urine specimens are being rejected because of improper collection

Answer 36

Instructions and training are not being provided to personnel performing collections

Question 37

State a possible reason for an accreditation team to report a deficiency in the following situations: A key statement is missing from the Clinitest procedure

Answer 37

A safety statement about the heat produced by the reaction is not in the procedure manual

Question 38

State a possible reason for an accreditation team to report a deficiency in the following situations: Open control bottles in the refrigerator are examined

Answer 38

The bottles have not been dated and initialled

Question 39

Explain whether you would accept them or take corrective action: You are told that the supervisor always performs the CAP proficiency survey

Answer 39

Correct; proficiency survey tests should be rotated among personnel performing the tests

Question 40

Explain whether you would accept them or take corrective action: QC is not performed daily on the reagent strips

Answer 40

Accept; QC on the Clinitest tablets must only be performed when they are used to perform a test

Question 41

Explain whether you would accept them or take corrective action: The urinalysis section is primarily staffed by personnel assigned to other departments for whom you have no personnel data

Answer 41

Correct; documentation of technical competency should be performed on all personnel working in the section and educational qualifications assessed

Question 42

An outpatient urine specimen was delivered to the laboratory at 0800 and placed on the counter in the Urinalysis department. The medical laboratory scientist performed urinalysis on the specimen at 1130. The following results were abnormal: Clarity: Cloudy pH: 9.0 Nitrite: Positive The patient was a known diabetic; however, the glucose result was negative What could be a possible cause for the abnormal results?

Answer 42

Delay in testing the specimen

Question 43

42 (a) Where would the information concerning what should have been done with this specimen be found and the criteria for rejection?

Answer 43

Incident report

Question 44

42 (b) What QA procedure may have detected this error?

Answer 44

Delta check

Question 45

42 (c) How might this affect this patient’s care?

Answer 45

Treatment of the patient will be delayed because the specimen will need to be recollected and tested. Extra expense incurred

Question 46

42 (d) How will the corrected results be documented?

Answer 46

Errors should be corrected as soon as possible following the institution’s policy. The original result must not be erased