Collection ProceduresCâu 7 / 100
A provider orders a lactate and a blood alcohol level. Which tube additive combination is designed to preserve these analytes?
a.Sodium citrate
b.Lithium heparin
c.K2 EDTA
d.Sodium fluoride and potassium oxalate
Giải thích
The gray-top tube contains sodium fluoride, an antiglycolytic agent that stops cells from consuming glucose or generating lactate, plus potassium oxalate as the anticoagulant. Citrate is for coagulation testing, heparin for stat chemistry, and EDTA for hematology; none of them inhibit glycolysis. Note that a non-alcohol antiseptic must also be used when collecting a blood alcohol.
Trích dẫn luật: CLSI GP41Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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