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Specimen handling

Specimen handling and collection

QuestionAnswer
semen must reach the lab in what time frame? 1 hour with as close to body temperature
CBC's should never be ... centrifuged
What test requires that it be chilled in ice right after collection? arterial gases, ammonia, lactic acid, pyruvate, and ACTH
Arterial Blood Gas (ABG) samples need to be run within how long of collecting? 15 min
Which of the following are light sensitive specimens? Bilirubin, carotene, and RBC folate
Which tube needs to be pre warmed? in a red top tube
how long will a pre warmed tube need to be in an incubator and at what temperature? 30 minutes at 37c (98.6F)
If a test requires a chilled specimen, when must the specimen be chilled? Immediately after collection
Warming a sample does what? Prevents the antibodies from attaching to RBC
Chilling a sample does what? Prevents separation from occurring within the specimen
What common tests require chilling? Ammonia, lactic acid, ABG, PT and PTT
What common tests require warming? Cold agglutinin, cryofibrinogen, and cryoglobulin
What common tests require protection from light? Vitamin B6, bilirubin, vitamin B12, carotene, and red cell folate
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