question

1)Laboratory equipment and other inanimate objects serve as what in the chain of infection?

answer

Reservoir

question

2)The chain of infection includes all of the following except a:

answer

Disinfectant

question

3)You arrive to work in the clinical laboratory with a small cut on your hand. Your supervisor pulls you from specimen collection (phlebotomy) duties for the day, citing chain of infection protocols. Why is your supervisor concerned about the cut on your hand?

answer

Because you have a point of entry that could expose you to infectious agents

question

4) Centrifuging an uncapped tube of urine is most likely to produce a/an:

answer

Aerosol

question

5) Which of the following guidelines tells laboratory personnel to consider all patients as possible carriers of blood-borne pathogens?

answer

Standard precautions

question

6) The Centers for Disease Control (CDC) recommends that universal precautions be followed when encountering:

answer

Specimens containing visible blood

question

7) Which of the following CDC guidelines considers all moist body substances to be potentially infectious and stresses hand washing?

answer

Standard precautions

question

8) The Occupational Exposure to Blood-Borne Pathogens Standard is:

answer

A law enforced by Occupational Safety and Health Administration (OSHA)

question

9) A laboratory worker who observes a red hand rash after removing gloves should:

answer

Avoid wearing latex gloves in the future

question

10) Plexiglas shields are used in the laboratory when urine tube specimens are being:

answer

Uncapped for analysis

question

11) A urine specimen received in the laboratory is leaking in a transport bag. What is the next course of action?

answer

It should be rejected

question

12) Lab coats worn in the urinalysis lab should:

answer

Be completely buttoned

question

13) Proper hand washing includes all of the following procedures except:

answer

Using a paper towel to turn on the water faucet

question

14) The acceptable method for disposing of urine specimens is:

answer

Pouring down the sink followed by copious amounts of water

question

15) Disinfection of the sink in the urinalysis laboratory should be performed:

answer

On a daily basis

question

16) Safety precautions observed in the urinalysis laboratory include all of the following except:

answer

Centrifuging only uncapped tubes

question

17) The source, method of transmission, and host are all deemed:

answer

Components of the chain of infection

question

18) Which of the following is a practice that all laboratory workers must avoid?

answer

Manually recapping needles

question

19) Before using a water hose on a burning chemical cabinet, a firefighter would visually check that what is posted on the outside of the cabinet?

answer

National Fire Protection Association (NFPA) symbol

question

20) Laboratory personnel wear special monitory badges when working frequently with which of the following hazards?

answer

Radioactive

question

21) When encountering a person experiencing an electrical shock, the first thing to do is:

answer

Turn off the circuit breaker for area

question

22) When a fire is discovered in the laboratory, you should do all of the following except:

answer

Leave the door open when evacuating

question

23) The acronym RACE is used when encountering a/an:

answer

Fire

question

24) Which of the following items found in the laboratory should be securely fastened to 25) a nonmovable object?

answer

Compressed gas cylinders

question

26) The most commonly available fire extinguisher in a hospital is:

answer

Type ABC

question

27) When using a fire extinguisher, which action do you perform first?

answer

Pull the pin

question

28) Variables that are included in a quality assurance program include all of the following except:

answer

Clinical

question

29) Clinical laboratory personnel have the least control over which of the following conditions?

answer

Pre-examination variables

question

30) When you receive a specimen and a requisition form that do not match, you should:

answer

Notify the personnel who collected the specimen

question

31) When a critical value is obtained in the laboratory:

answer

The result must be reported to the health-care provider

question

32) The ability to obtain the published result on a control sample is referred to as:

answer

Accuracy

question

33) Obtaining the same result after testing the same specimen three times is called test:

answer

Precision

question

34) The highest acceptable range for confidence limits in the clinical laboratory is:

answer

±3 SD

question

35) A procedure with a coefficient of variation of 10% is considered:

answer

Imprecise

question

36) When plotted on a Levy-Jennings chart, a control that has been left on the counter overnight instead of being refrigerated might show a/an:

answer

Shift

question

37) Proficiency testing should be performed:

answer

By personnel performing the tests routinely

question

38) The least regulated level of Clinical Laboratory Improvement Amendments (CLIA) testing categories is:

answer

Waived

question

39) A urinalysis laboratory that subscribes to an external proficiency testing program from which all samples are tested by the supervisor is an example of:

answer

Right things done wrong

question

40) True/False: Personnel in the urinalysis laboratory are best protected from blood-borne pathogen exposure when following standard precautions.

answer

True

question

41) True/False: It is not necessary to change gloves when performing tasks on the same patient.

answer

False

question

42) True/False: OSHA requires employers to provide free immunization for hepatitis B virus (HBV) to workers in urinalysis.

answer

True

question

43) True/False: Hands should be washed before and after testing each urine specimen.

answer

False

question

44) True/False: A paper towel used to absorb a urine spill is discarded in a biohazard container.

answer

True

question

45) True/False: It is acceptable to recap a needle on a syringe containing urine, but not blood.

answer

False

question

46) True/False: Only nontoxic chemicals can be pipetted by mouth.

answer

False

question

47) True/False: The MSDS should be provided to laboratories by chemical manufacturers or vendors.

answer

True

question

48) True or false: Electrical current can pass through glass and wood.

answer

False

question

49) True or false: Flammable chemicals must be stored in explosion-proof refrigerators.

answer

True

question

50) True or false: When lifting heavy objects, laboratory workers should bend their knees.

answer

True

question

53) State the six components of the chain of infection.

answer

Infectious agent, reservoir, portal of exit, means of transmission, portal of entry, susceptible host

question

54) Who is responsible for laundering nondisposable lab coats?

answer

Employer

question

55) When gloves are removed, what is the next action taken?

answer

Hand sanitizing

question

56) What two activities are paper towels used for when washing the hands?

answer

Drying the hands and turning off the water

question

57) Name three blood-borne pathogens.

answer

HBV, HCV, and HIV

question

58) What document does OSHA require all laboratories to have on file when using hazardous chemicals?

answer

Chemical hygiene plan

question

59) What are the diamond-shaped, color-coded labels placed on chemical cabinets in the urinalysis lab called?

answer

NFPA symbols

question

60) A laboratory worker who is pregnant should avoid areas designated by what hazard symbol?

answer

Radioactive

question

61) Describe the type of shoes that should be worn in the laboratory.

answer

Comfortable, closed-toe

question

62) All of the following are components of normal urine except:

answer

Amino acids

question

63) To determine if a specimen is urine, measure the concentrations of:

answer

Urea and creatinine

question

64) The average daily volume of urine produced by a normal adult is approximately:

answer

1200 mL

question

65) A person exhibiting oliguria would have a urine volume of:

answer

200 to 500 mL

question

66) Which of the following terms is correctly matched with urine output?

answer

Polyuria: 3000 mL in 24 hours

question

67) The polyuria associated with diabetes mellitus is caused by:

answer

The presence of excess glucose in the urine

question

68) Urine from a patient with diabetes insipidus has:

answer

Increased volume and decreased specific gravity

question

69) A patient with polyuria shows a high specific gravity in the urine. The patient should be evaluated for:

answer

Diabetes mellitus

question

70) Persons taking diuretics can be expected to produce:

answer

Polyuria

question

71) A urine specimen may be rejected by the laboratory for all of the following reasons except:

answer

The container uses a screw-top lid

question

72) An unpreserved urine specimen left at room temperature overnight will have decreased:

answer

Glucose and ketones

question

73) Which of the following will be least affected in an unpreserved specimen left at room temperature overnight?

answer

Protein

question

74) Red blood cells will disintegrate more rapidly in urine that is:

answer

Dilute and alkaline

question

75) The primary cause of the changes that take place in unpreserved urine is:

answer

Bacterial growth

question

76) Which of the following urine chemicals will deteriorate when exposed to light?

answer

Bilirubin

UA unit 1//// part 1

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