NHA Phlebotomy Technician (CPT)

A phlebotomist must collect a blood culture set, a PT/INR, a basic metabolic panel on a gel serum tube, and a CBC. Which collection sequence follows the standard order of draw?

1. ABlood culture, light blue, gel serum tube, lavenderĐúng
2. BLight blue, blood culture, lavender, gel serum tube
3. CGel serum tube, blood culture, light blue, lavender
4. DLavender, light blue, blood culture, gel serum tube

Vì sao: The standard order of draw is blood culture (sterile) first, then the light blue sodium citrate coagulation tube, then serum tubes with or without gel, then heparin, then EDTA, then glycolytic inhibitor tubes. Drawing the blood culture first protects it from skin-flora contamination introduced by non-sterile tube handling. Every other sequence listed allows additive carryover into a tube where that additive causes error, most notably EDTA carried into a chemistry or coagulation tube.CLSI GP41

How should an outpatient be identified before venipuncture?

1. AAsk the patient to state full name and date of birth, then match both to the requisitionĐúng
2. BAsk, Are you Mr. Johnson, and proceed if the patient says yes
3. CConfirm the name on the sign-in sheet
4. DMatch the room number and the last four digits of the record number

Vì sao: Two independent identifiers must be actively stated by the patient and matched against the requisition, most commonly full name and date of birth. Asking a yes-or-no question invites a confused or hard-of-hearing patient to agree incorrectly. A sign-in sheet is not a verified identifier and outpatients have no room number, which is never an acceptable identifier in any setting.CLIA