Which of the following statements describes optimal conditions for transport, handling, and storage of blood specimens for clinical chemistry testing?
Specimen brought to lab immediately, permitted to clot, serum separated and tested as soon as possible.
Specimen brought to lab within 6 hours...
Which of the following statements describes optimal conditions for transport, handling,
and storage of blood specimens for clinical chemistry testing?
Specimen brought to lab immediately, permitted to clot, serum separated and tested as
soon as possible.
Specimen brought to lab within 6 hours after collection, stored at room temperature
before centrifugation for up to 24 hours.
None of these represent optimal conditions.
Specimen brought to lab immediately, spun down and serum left to stand on clot until
tested. correct answers Specimen brought to lab immediately, permitted to clot, serum
separated and tested as soon as possible.
Ideally, the best type of centrifuge that separates blood cells and plasma for analysis in
the clinical laboratory is:
A temperature-controlled centrifuge with fixed buckets and an angled rotor.
A temperature-controlled centrifuge with spinning buckets that holds 5-10 mL blood
tubes.
A non-temperature-controlled centrifuge with fixed buckets that hold 5-10 mL blood
tubes.
A non-temperature-controlled centrifuge with fixed buckets that only hold 1 mL blood
tubes correct answers A temperature-controlled centrifuge with spinning buckets that
holds 5-10 mL blood tubes.
what anticoagulant is in a mint top tube correct answers lithium heparin
What is AIDS?
A fungus.
A virus.
A bacteria.
A protozoan. correct answers A virus
What is an example of a solvent?
Oxygen
Water
, Salt
Sugar correct answers Water
What is an example of a solute?
Milk
Acetone
Water
Sugar correct answers sugar
What is the most used reagent in the laboratory?
Water
Salt
Hydrochloric Acid
Sodium hypochlorite correct answers water
Hydrogen ion concentration is often expressed as: correct answers PH
A substance dissolved in a liquid is a(n)
Solution
Solvent
Weak Acid
Solute correct answers solute
What is a drying agent that removes moisture from air and other substances? correct
answers Dessicant
What is the fluid called in a clot activator tube after centrifugation? correct answers
Serum
What are two viruses assumed to be infectious at the time of an exposure? correct
answers HIV and Hepatitis B
What are accrediting agencies that routinely inspect safety in the laboratory? correct
answers JCAHO, CAP, or CLIA
What piece of safety equipment in the laboratory expels noxious and hazardous fumes
from chemical reagents? correct answers Fume Hood
What are two items necessary for proper hand washing? correct answers soap and
warm water
How close the measured value is to the true value is the
Accuracy
Bias
Precision
Constant error correct answers Accuracy
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