Which tube is drawn immediately after the light blue tube in the standard order of draw?

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Study for the NHCO Phlebotomy Test. Experience flashcards and multiple-choice questions with hints and explanations. Prepare effectively for your phlebotomy exam!

Multiple Choice

Which tube is drawn immediately after the light blue tube in the standard order of draw?

Explanation:
The main idea tested is keeping samples accurate by using a specific order that minimizes cross-contamination of additives between tubes. After the citrate-containing light-blue tube used for coagulation studies, the next tube drawn is the red-top tube, which has no additive. This helps prevent any anticoagulant carryover from affecting subsequent tests, especially serum-based ones. In practice, blood culture tubes are typically drawn first, so they wouldn’t be the next tube after the light-blue, aligning with the standard sequence.

The main idea tested is keeping samples accurate by using a specific order that minimizes cross-contamination of additives between tubes. After the citrate-containing light-blue tube used for coagulation studies, the next tube drawn is the red-top tube, which has no additive. This helps prevent any anticoagulant carryover from affecting subsequent tests, especially serum-based ones. In practice, blood culture tubes are typically drawn first, so they wouldn’t be the next tube after the light-blue, aligning with the standard sequence.

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