Chapter 12 Study Guide
How long does it usually take for a serum specimen without additives to clot - correct
answer-30-60 mins
Most laboratories require blood specimens to be transported in a - correct answer-Leak
Proof plastic biohazard bag
sensitivity to light is called ______ - correct answer-photosensitivity
room temperature is ____ - correct answer-22-25•C
An ____ is a small portion of a blood specimen that is separated for additional testing -
correct answer-Aliquot
All specimen refrigerators should be labeled with ___ warnings. - correct answer-Biohazard
warnings
Describe the effects over-shaking or vigorous mixing of a specimen - correct
answer-Excessive agitation causes hemolysis of the specimens when the RBCS rupture as
a result of tough handling. Hemolysis causes numerous chemical interferences with lab
results
List the 6 parts of the turn around time - correct answer-1) ordered 2) collected 3)transported
4)processed 5) analyzed 6) results reported
List 6 specimens that are photo sensitive and should be protected for light - correct
answer-Bilirubin, beta-carotene , floate , Porphyrins , Vitamin A , Vitamin B
Blood specimens from the patients on ___ will take longer to clot - correct
answer-Anticoagulant therapy
As you operate a small table-top centrifuge it begins to vibrate and make noise. This
indicates that's not - correct answer-Balanced / leveled
Describe how a centrifuge should be properly loaded with blood specimens and what
happens if it is not loaded properly - correct answer-Blood specimens should be loaded in
balance orientation , each tube is loaded directly across from another tube of similar
volume/size . If not properly balanced, it can result in breakage , inadequate separation and
excessive vibrations that can potentially damage cells
How should the specimen be transported if blood gases can be analyzed within 30 minutes
from the time of the specimen collection? - correct answer-In a plastic syringe @ room
temperature
How long does it usually take for a serum specimen without additives to clot - correct
answer-30-60 mins
Most laboratories require blood specimens to be transported in a - correct answer-Leak
Proof plastic biohazard bag
sensitivity to light is called ______ - correct answer-photosensitivity
room temperature is ____ - correct answer-22-25•C
An ____ is a small portion of a blood specimen that is separated for additional testing -
correct answer-Aliquot
All specimen refrigerators should be labeled with ___ warnings. - correct answer-Biohazard
warnings
Describe the effects over-shaking or vigorous mixing of a specimen - correct
answer-Excessive agitation causes hemolysis of the specimens when the RBCS rupture as
a result of tough handling. Hemolysis causes numerous chemical interferences with lab
results
List the 6 parts of the turn around time - correct answer-1) ordered 2) collected 3)transported
4)processed 5) analyzed 6) results reported
List 6 specimens that are photo sensitive and should be protected for light - correct
answer-Bilirubin, beta-carotene , floate , Porphyrins , Vitamin A , Vitamin B
Blood specimens from the patients on ___ will take longer to clot - correct
answer-Anticoagulant therapy
As you operate a small table-top centrifuge it begins to vibrate and make noise. This
indicates that's not - correct answer-Balanced / leveled
Describe how a centrifuge should be properly loaded with blood specimens and what
happens if it is not loaded properly - correct answer-Blood specimens should be loaded in
balance orientation , each tube is loaded directly across from another tube of similar
volume/size . If not properly balanced, it can result in breakage , inadequate separation and
excessive vibrations that can potentially damage cells
How should the specimen be transported if blood gases can be analyzed within 30 minutes
from the time of the specimen collection? - correct answer-In a plastic syringe @ room
temperature
