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MLA > Unit 4 Accessioning > Flashcards

Unit 4 Accessioning Flashcards

1
Q

happens before testing.

now called preexamination

A

pre-analytical

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2
Q

happens during testing.

now called examination

A

analytical

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3
Q

happens after testing.

now called postexamination

A

post analytical

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4
Q

lab tests are requested by means of the lab requisitions form or a computer generated order

A

requisitions

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5
Q

serve as both lab requests and report forms are considered a more traditional manual system

A

multiple part requisition forms

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6
Q

makes sure the correct treatment is administered to the right patient, ultimately reducing errors and ensuring patient safety

A

barcodes

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7
Q

may include any human or animal material such as urine, feces, blood, tissue and fluids being shipped for diagnostic or investigate purposes

A

infectious specimen

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8
Q

specimen delivery methods

A

hand delivery
pneumatic tube system
vehicles

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9
Q

tests that can be affected with the pneumatic tube system

A

potassium
hemoglobin
acid phosphatase
lactate dehydrogenase

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10
Q

tests that are not affected with the tube system

A

ALP
AST
chloride
glucose
creatinine
urea
uric acid

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11
Q

if the blood is drawn in an SST/PST tube it is stable for ___ after centrifugation

A

24 hours

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12
Q

if stored at 4 degrees, the SST/PST tube is stable for ___

A

48 hours

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13
Q

urine specimens (protected from light) can be tested within ___ at ___

A

2 hours, RT

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14
Q

cytology specimens should be tested ____

if not ____ should be added to preserve the cells

A

ASAP

ethanol

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15
Q

refers to the process of dividing a larger volume of a specimen into smaller, standardized aliquots for storage, analysis or distribution

A

Aliquot preparation

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16
Q

aliquot is used when

A
  1. Multiple tests are ordered
  2. tests are performed on different instruments or in different areas
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17
Q

serum/plasma should be not thawed more than ?

A

once

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18
Q

estimate the amount of specimen in an aliquot tube

A

0.5 ml = little finger
1.0 ml = index finger
2.0 ml = middle and index finger

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19
Q

body temp

A

36.4 - 37.6 degrees celsius (avg is 37 degrees)

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20
Q

room temp

A

20 - 30 degrees C (avg 25)

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21
Q

refrigerator temp

A

2 - 10 degrees C

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22
Q

frozen temp

A
  • 20 degrees C (some specimens require -70 degrees C or lower)
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23
Q

slows down metabolic specimens

also protects thermolabile

should be completely immersed in a slurry of crushed ice

A

chilling specimen

24
Q

to altered or destroyed by heat

A

thermolabile

25
Q

these specimens can be immersed in a combination of water and ice

A

arterial blood gases - on ice
ammonia - on ice
lactic acid - on ice

26
Q

specimens that must not be chilled

A

coag tests
potassium

27
Q

specimens to be kept at body temp

A

cold agglutinins
cryofibrinogen
semen analysis

28
Q

these samples can be taken in plain tube and protected from light by wrapping in aluminum foil - amber colored collection containers are available for collecting bilirubin for infants

A

bilirubin
vitamin b12
carotene

29
Q

a decrease of ___ of the bilirubin is lost after 1 hour of light exposure

A

50%

30
Q

urine specimens for porphyrins

A

are collected in a dark bottle

31
Q

used to diagnose meningitis infections and other brain disorders

always delivered STAT

usually collected in 3-4 tubes

A

CSF

32
Q

1st tube for CSF

A

goes to chemistry/immunology on ice

33
Q

2nd tube for CSF

A

goes to micro - no ice

34
Q

3rd tube for CSF

A

goes to hema (differential and cell count) - on ice

35
Q

4th tube for CSF

A

goes to cytology or other special test

36
Q

if one specimen such as urine or CSF is needed by 3 depts., it must be processed as follows

do not put on ice

A

micro - prevents contamination
hema - for cellular analysis
chem

37
Q

lab personnel must be aware of TDG regulations for 3 reasons

A
  1. Transport chemicals needed for the lab
  2. Transport of specimens from one site to another (satellite to main lab)
  3. Disposal of hazardous waste (chemical and biological)
38
Q

packaging of diagnostic and infectious specimens should generally follow

A

The triple packaging system

39
Q

Blood collection tubes, urine containers, or pour off tubes with leak proof lids

A

Primary package

40
Q

Durable, watertight, leak-proof receptable to enclose and protect the primary receptacle(s)

Example envelope plastic bag

A

Secondary package

41
Q

Durable rigid container

Example: cooler

A

Outer package

42
Q

Refers to the management and preservation of laboratory specimens and test results after the completion of analysis

A

Post analysis storage

43
Q

Anticoagulated venous specimen should be stored at ____ if they will not be tested within ____

A

2-8 degrees celsius; 4 hours

44
Q

____/_____ aliquots can remain at room temp for no longer than ____

A

Serum/plasma; 8 hours

45
Q

If the assays can be tested within ____, then the aliquots should be refrigerated (____)

A

48 hours; 2-8 degrees celsius

46
Q

If assays are not completed within 48 hrs, the aliquots should be frozen at ____ or below degrees C

A

-20 degrees C

47
Q

____ tubes are stored for _____ and discarded.

Frozen specimens unacceptable.

A

EDTA; 24 hours

48
Q

____/____ tubes are stored at RT for ____

A

Sodium flouride/potassium oxalate; 24 hours

49
Q

Must be incinerated or buried in a cemetery or destroyed in a crematorium

A

Human anatomical waste

50
Q

Must be incinerated, autoclaved, or otherwise treated in a manner that destroys pathogens

A

Microbiological waste

51
Q

Sharps are disposed of in puncture resistant containers and shall be

A

Incinerated
Autoclaved
Otherwise treated in manner that renders them unusable and destroys pathogenic microorganisms

52
Q

COC

A

Chain of custody forms

53
Q

Refers to the documented process of establishing and maintaining control over the handling, storage, and disposition of specimen samples, or evidence from the time of collection to final disposition

A

Chain of custody

54
Q

Clean with _____ when collecting ETOH

A

benzalkonium chloride (or soap and water)

55
Q

Indicate life threatening situation. And action must be taken immediately.

A

Critical (panic) levels

MLA (12 decks)

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