When Collecting a Blood Specimen Using the Vacuum Tube Method

question 50

Multiple Choice

When collecting a blood specimen using the vacuum tube method of venipuncture,venous reflux is prevented by

• A) Keeping the patient's arm in a downward position
• B) Inserting the needle at a 15-degree angle to the patient's arm
• C) Filling the evacuated tube to the exhaustion of the vacuum
• D) Removing the tourniquet before withdrawing the needle from the patient's arm

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