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McCall Phlebotomy > Chapter 12 > Flashcards

Chapter 12 Flashcards

1
Q

This organization develops standards for handling and processing

A

CLSI

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2
Q

Once a specimen is collected what happens next

A

Specimen collection is verified

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3
Q

Proper specimen handling begins

A

When the physician orders the test

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4
Q

Clsi and osha do not require

A

Shock resistant bags

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5
Q

An aliquot is

A

Portion of specimen being tested

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6
Q

To avoid airborne infection while processing specimen

A

Remove stoppers behind a splash shield

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7
Q

According to CLSI which tubes should be placed upright as soon as they’re mixed

A

Non anticoagulant gel tubes

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8
Q

An example of a preanalytical error made at time of collection

A

Failing to mix tubes

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9
Q

A preanalytical error related to specimen storage is

A

Exposure to light

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10
Q

An error related to specimen transport

A

Agitation induced hemolysis

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11
Q

A glucose specimen in sodium fluoride is generally stable for

A

24 hours

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12
Q

Computerized analyzers in the lab can read bar codes and ID patients if

A

The label is correctly placed on the tube

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13
Q

Interface means

A

Interacting through a connection of computers

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14
Q

If a specimen has inadequate information the processor may request

A

The phlebotomist obtain a new sample

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15
Q

An order inquiry

A

Retrieves all tests ordered on a patient

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16
Q

Output is

A

Processed data printed on paper

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17
Q

An example of preanalytical error happening during processing is

A

Inadequate centrifugation

18
Q

In specimen handling it’s important to note

A

Effects of mishandling are not always obvious

19
Q

Which specimen must be transported on ice

A

Ammonia

20
Q

Processing specimens requires a lot of PPE but this isn’t necessary

A

Shoe covers

21
Q

To process date you must

A

Press the enter key

22
Q

Rough handling during transport will cause many issues but not

A

Elevate WBC counts

23
Q

Chilling can cause wrong results for this analyte

A

Potassium

24
Q

A two hour time delay does not affect this test

A

Pregnancy test

25
Q

A non additive specimen is spun in the centrifuge, what comes to the top

A

Serum

26
Q

Which action will compromise the quality of a specimen

A

Only partially filling a liquid EDTA tube

27
Q

A pneumatic tube is

A

Pressurized air transport system

28
Q

Permanent computer memory that instructs the computer to carry out requested operations

A

ROM

29
Q

Transferring specimens into aliquot tubes has inherent risks, which involves the least risk

A

Aliquot tubes that are prelabeled

30
Q

Which specimen will be rejected if the tube vacuum is not exhausted

A

Prothrombin time

31
Q

Of serum is not completely clotted before centrifuged

A

It may develop a fibrin clot

32
Q

A computer terminal is

A

Keyboard and computer workstation

33
Q

It’s unnecessary to protect this specimen from light

A

Ammonia

34
Q

Chilling causes errors with this analyte

A

Potassium

35
Q

When you spin a nonadditive in the centrifuge what comes to the top

A

Serum

36
Q

Which tube does not require mixing

A

Red/light gray

37
Q

Critical test values that may be life threatening are called

A

Panic values

38
Q

Minimum precentrifugation time is

A

30 minutes

39
Q

The CPD additive is least likely to

A

Control bacteria

40
Q

Esr determinations on specimens at room temp must be made within

A

4 hours

41
Q

Which is unlikely to be rejected

A

Total bilirubin that is icteric

42
Q

Glycolysis by the cells in the blood can falsely lower glucose at

A

5-7% per hour

McCall Phlebotomy (7 decks)

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