Unit 4 Part 2 - Accessioning

Question 1

what happens before testing (specimen collection)

now called preexamination phase

Answer 1

pre-analytical phase

Question 2

what happens during testing

now called examination phase

Answer 2

analytical phase

Question 3

what happens after testing (results given)

now called postexamination phase

Answer 3

post-analytical

Question 4

form used to order lab tests

Answer 4

requisiton

Question 5

forms that serve as lab requests and report forms

Answer 5

multiple-part requisition

Question 6

LIS

Answer 6

laboratory information system

Question 7

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

Answer 7

barcode

Question 8

one of the most common means of transportation from getting specimens from one end of the hospital to the laboratory

Answer 8

pneumatic tube system

Question 9

It is important to gently mix anticoagulant tubes immediately by gentle inversion __ times

Answer 9

8

Question 10

coagulation tubes are mixed ___ times

Answer 10

3-4

Question 11

used to diagnose meningitis infections and other brain disorders

always delivered stat

Answer 11

CSF

Question 12

List the 3-4 tubes collected for CSF and their handling

Answer 12

1. Chemistry/Immunology - on ice
2. Microbiology - no ice
3. Hematology - on ice
4. Cytology or other - on ice

Question 13

If one specimen is needed by 3 departments (ex. urine or CSF), it must be processed in what order?

Answer 13

1. Microbiology - to prevent contamination
2. Hematology - for cellular analysis
3. Chemistry

Do not put on ice!

Question 14

because of variability and stability of analytes, most labs use the ___ as max time limit for separating specimens as a general rule

Answer 14

two-hour limit

Question 15

specimens should be centrifuged and separated within ___ from time of collection

Answer 15

2 hours

Question 16

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

Answer 16

24 hours

Question 17

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

Answer 17

48 hours

Question 18

once serum has been removed from RBC, sample will be stable at RT for ___ and up to ___ at 2-4 degrees

Answer 18

RT: 8 hours

2-4 degrees: 48 hours

Question 19

after 48 hours, serum specimens should be frozen at ___ in an aliquot tube

Answer 19

-20 degrees

Question 20

serum specimens should be ___ before centrifugation

Answer 20

completely clotted

Question 21

blood smears must be prepared within __ of collection

Answer 21

1 hour

Question 22

EDTA for CBC should be tested within ___

Answer 22

6 hours

Question 23

EDTA for CBC is stable for ___ at RT

Answer 23

24 hours

Question 24

RNA specimens must be transported and processed ___

Answer 24

ASAP

Question 25

RNA specimens can be stored at ___ for 48 hours

Answer 25

4 degrees

Question 26

If not being processed within 48 hours, RNA specimens must be in aliquot tube and frozen at ___

Answer 26

-80 degrees

Question 27

urine specimens need to be protected from __ and can be tested within __ at RT if not possible it should be refrigerated

Answer 27

light, 2 hours

Question 28

cytology specimens should be examined ASAP, if not possible use ___ to preserve the cells

Answer 28

ethanol

Question 29

a portion of specimen used for testing prepared by transferring a portion of specimen into one or more tubes labeled with same ID info as specimen tube

Answer 29

aliquot

Question 30

serum/plasma aliquot can remain at RT no longer than __

Answer 30

8 hours

Question 31

serum/plasma aliquots that cannot be completed within 8 hours must be refrigerated at __

Answer 31

2-8 degrees C

Question 32

serum/plasma aliquots not completed within 48 hours should be frozen below ___

Answer 32

-20 degrees C

Question 33

serum/plasma should not be frozen and thawed more than ___

Answer 33

once

Question 34

little finger estimates about ___ for the aliquot tubes

Answer 34

0.5 ml

Question 35

index finger estimates about ___ for the aliquot tubes

Answer 35

1.0 ml

Question 36

middle and index finger estimates about ___ for the aliquot tubes

Answer 36

2.0 ml

Question 37

sodium fluoride tubes for glucose and EDTA tubes keep blood stable for up to ___ at RT

Answer 37

24 hours

Question 38

body temperature

Answer 38

36.4 - 37.6 C (avg 37 C)

Question 39

room temperature

Answer 39

20 - 30 C (avg 25 C)

Question 40

refrigerator temperature

Answer 40

2 - 10 C

Question 41

frozen temperature

Answer 41

-20 C (some require -70 C or lower)

Question 42

term used to describe analytes altered or destroyed by heat

Answer 42

thermolabile

Question 43

why do we chill down specimens?

Answer 43

to slow down metabolic processes

Question 44

specimens that have to be chilled should be ___ in a slurry of crushed ice (slurpee)

Answer 44

completely immersed

Question 45

Handling for: ABG Ammonia Lactic acid

Answer 45

chilled

Question 46

Handling for: Most coagulation tests Potassium

Answer 46

must not be chilled

Question 47

Handling for: cold agglutinins cryofibrinogen semen analysis

Answer 47

body temp (37 C)

Question 48

Handling for: bilirubin vit B12 carotene urine specimens for poryphyrins

Answer 48

protect from light

Question 49

decrease of ___ of bilirubin is lost after ___ of light exposure

Answer 49

50%, 1 hour

Question 50

articles or substances which are capable of posing a significant risk to health, safety, property or the environment when transported by air or surface

Answer 50

dangerous goods

Question 51

3 reasons why lab personnel must be aware of TDG regulations

Answer 51

1. transport of chemicals needed for lab 2. transport of specimens from one site to another 3. disposal of hazardous waste (chemical and biological)

Question 52

consists of a primary receptacle, secondary packaging, rigid outer packaging

Answer 52

triple packaging system

Question 53

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

Answer 53

primary package

Question 54

durable, watertight, leak-proof receptacle to enclose and protect the primary receptacles

Answer 54

secondary package

Question 55

durable rigid container, like a cooler

Answer 55

outer package

Question 56

serum specimens should be separated from whole blood before being ____

Answer 56

refrigerated

Question 57

anticoagulated venous specimens should be stored at 2-8 degrees if they will not be tested within ___

Answer 57

4 hours

Question 58

serum/plasma aliquots can remain at RT for no longer than ___

Answer 58

8 hours

Question 59

EDTA tubes are stored at RT for ___ and then discarded, frozen specimens are unacceptable

Answer 59

24 hours

Question 60

sodium fluoride/potassium oxalate tubes are stored at RT for ___

Answer 60

24 hours

Question 61

form that follows specimen from collection through to final report has signature of everyone who has come into contact with this specimen

Answer 61

chain of custody forms

Question 62

chain of custody forms used for:

Answer 62

blood alcohol testing urine drug testing paternity testing drug testing of athletes

Question 63

significantly abnormal test results, usually indicate life-threatening situations and action must be taken immediately

Answer 63

critical (panic) levels

Question 64

when phoning critical panic levels make sure that the other person ___

Answer 64

writes results down reads it back to you