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Questions and Answers
What is carryover or cross-contamination in the context of blood collection?
What is carryover or cross-contamination in the context of blood collection?
- The transfer of blood from one tube to the next during ETS blood collection
- The process of filling specimen tubes from the bottom up to minimize contamination
- The contamination of additive tubes with previous blood samples, affecting test results (correct)
- The interference of heparin in coagulation tests
Which additive in tubes has been identified as the source of more carryover problems than any other additive?
Which additive in tubes has been identified as the source of more carryover problems than any other additive?
- EDTA (correct)
- Oxalate
- Heparin
- Citrate
Why does heparin cause the least interference in tests other than coagulation tests?
Why does heparin cause the least interference in tests other than coagulation tests?
- Because it occurs naturally in blood (correct)
- Because it does not affect the order of draw
- Because it prevents carryover during blood collection
- Because it is less prone to contamination
What strategy eliminates confusion and presents a sequence of blood collection that results in the least amount of interference from carryover?
What strategy eliminates confusion and presents a sequence of blood collection that results in the least amount of interference from carryover?
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How can the chance of carryover be minimized during blood collection?
How can the chance of carryover be minimized during blood collection?
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According to CLSI, what may contaminate specimens for trace element tests?
According to CLSI, what may contaminate specimens for trace element tests?
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