What color identifies blood collection tubes containing sodium fluoride and potassium oxalate?

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Study for the NHCO Order of Draw Test. Utilize flashcards and multiple-choice questions, each with hints and explanations. Prepare effectively for your exam!

Multiple Choice

What color identifies blood collection tubes containing sodium fluoride and potassium oxalate?

Explanation:
Grey-top tubes are the ones that contain sodium fluoride and potassium oxalate. Sodium fluoride acts as a glycolysis inhibitor, which preserves glucose levels in the blood sample for accurate glucose testing. Potassium oxalate serves as an anticoagulant, preventing clotting so you can obtain plasma for testing. This color coding helps identify the tube’s additives and its intended tests. Other colors correspond to different additives used for other tests, but the grey color specifically signals the fluoride-oxalate combination.

Grey-top tubes are the ones that contain sodium fluoride and potassium oxalate. Sodium fluoride acts as a glycolysis inhibitor, which preserves glucose levels in the blood sample for accurate glucose testing. Potassium oxalate serves as an anticoagulant, preventing clotting so you can obtain plasma for testing. This color coding helps identify the tube’s additives and its intended tests. Other colors correspond to different additives used for other tests, but the grey color specifically signals the fluoride-oxalate combination.

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