PhlebotomyCâu 56 / 100
A green-top tube is used for many chemistry (plasma) tests. Which additive does it contain?
a.EDTA
b.Sodium citrate
c.Silica clot activator
d.Heparin
Giải thích
The green-top tube contains heparin (sodium, lithium, or ammonium), an anticoagulant that inhibits thrombin to prevent clotting for plasma chemistry tests. It is inverted several times to mix. Choosing the correct additive tube ensures the specimen is suitable for the ordered test.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- According to the standard order of draw, which specimen is collected first when a blood culture is ordered along with other tests?
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