green-top tube

green-top tube

(grēn-top tūb)
A container with a lining of lithium heparin, ammonium heparin, or sodium heparin used as anticoagulants.
References in periodicals archive ?
You do not specify the type of green-top tube in which you are receiving ABGs--lithium or sodium heparin; both tubes look alike.
The tubes included a red-top tube with no anticoagulant, a purple-top tube with 150 g/L EDTA, a green-top tube with 72 USP units of heparin, and a blue-top tube with 32 g/L sodium citrate.