Phlebotomy Quiz

Phlebotomy includes which of the following?

• Skin punctures

• Arterial punctures

• Venipunctures

• All are correct

All of the following are guidelines that should be followed when assembling equipment and supplies for a venipuncture except:

• check each blood tube for damage.

• do not substitute one blood tube for another.

• check the expiration date of the blood tubes.

• label each blood tube with one unique patient identifier.

What position should be used for a venipuncture if a patient appears nervous or has fainted in the past from a venipuncture?

• Semi-Fowler

• Prone

• Sims

• Sitting

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

• keeping the patient’s arm in a downward position.

• inserting the needle at a 15-degree angle to the patient’s arm.

• filling the evacuated tube to the exhaustion of the vacuum.

• removing the tourniquet before withdrawing the needle from the patient’s arm.

All of the following are correct techniques for applying a tourniquet except:

• placing the tourniquet 3 to 4 inches above the bend in the elbow.

• asking the patient to clench his or her fist.

• applying the tourniquet so that it is snug, but not tight.

• leaving the tourniquet on for at least 3 minutes before drawing the specimen.

Which of the following may occur if a tourniquet is applied too tightly?

• It may be uncomfortable for the patient.

• Inaccurate test results may occur.

• The arterial blood flow may be obstructed.

• The venous blood flow may be obstructed.

• All are correct.

Which of the following antecubital veins is considered the best vein to use for a venipuncture?

• Basilic vein

• Cephalic vein

• Brachial vein

• Median cubital vein

Which of the following represents an error in technique when selecting a vein for venipuncture?

• Examining the antecubital veins of both arms

• Using the thumb to palpate the vein

• Determining the size and depth of the vein

• Tracing the path of the vein

Which of the following are characteristics of the brachial artery (located in the antecubital space) when palpated?

• Pulses when palpated.

• Has a more elastic and thicker wall than a vein.

• If punctured, the blood is bright red in color.

• If punctured, the patient feels more than usual amount of pain.

• All are correct.

When performing a venipuncture, which of the following techniques represents a violation of the OSHA standard?

• Applying the tourniquet 1 inch above the bend in the elbow

• Using a small-gauge needle to collect the specimen

• Not labeling the blood tube

• Recapping the needle after performing a venipuncture