Collection ProceduresCâu 26 / 100
The last tube is filling. In what order should the phlebotomist complete the venipuncture?
a.Remove the needle, release the tourniquet, then remove the last tube
b.Apply pressure to the site, then remove the needle and tourniquet together
c.Remove the last tube, release the tourniquet, then withdraw the needle and apply pressure
d.Release the tourniquet, remove the needle, then remove the last tube
Giải thích
The tube is removed from the holder first so no vacuum pulls on the vein, the tourniquet is released next to lower venous pressure, and only then is the needle withdrawn and pressure applied. Pulling the needle out with the tourniquet still tight forces blood into the tissue and causes a hematoma. Removing a tube after the needle is out is impossible, and pressure cannot be applied while the needle is still in the vein.
Trích dẫn luật: CLSI GP41Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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