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Why is it important that you tell the patient exactly what you are about to do before you begin?
- A. To gain the patient's cooperation
- B. To delay the start of the task
- C. To reduce patient anxiety
- D. To demonstrate your knowledge
Correct Answer: A,C
Rationale: Informing the patient about the procedure helps gain their cooperation and reduces anxiety by setting clear expectations and building trust.
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There are several tips you may use to find a suitable vein for venipuncture. Which of the following techniques is inappropriate?
- A. Have the patient hang the proposed arm dependently to allow blood to better fill the veins of the arm.
- B. Use an alcohol swab to apply rubbing friction in an attempt to stimulate the vein to distend.
- C. Using your fingers, slap the skin over the vein in an attempt to stimulate the vein to distend.
- D. Apply a warm pack to the site for 5 to 10 minutes to dilate the vein.
Correct Answer: C
Rationale: Slapping the skin is inappropriate as it may cause discomfort or bruising and is not a standard technique for vein distension.
Explain the purpose of applying a tourniquet for phlebotomy.
- A. To restrict blood flow
- B. To dilate veins for easier access
- C. To prevent hemolysis
- D. To stabilize the needle
Correct Answer: B
Rationale: A tourniquet is applied to temporarily restrict venous blood flow, causing veins to dilate and become more visible and accessible for phlebotomy.
What action(s) will help to protect you from bloodborne pathogens during phlebotomy?
- A. Washing your hands prior to the procedure
- B. Washing your hands after the procedure
- C. Wearing gloves during the procedure
- D. Activating the needle safety device immediately after removing your gloves
Correct Answer: A,B,C
Rationale: Hand washing before and after the procedure and wearing gloves during it are standard precautions to protect against bloodborne pathogens. The needle safety device should be activated immediately after use, not after removing gloves.
You are performing phlebotomy on an elderly patient using a needle and syringe setup. Besides hemolysis, what can happen if you pull the plunger back too rapidly?
- A. Vein collapse
- B. Excessive bleeding
- C. Needle dislodgement
- D. Pain or discomfort
Correct Answer: A
Rationale: Pulling the plunger back too rapidly can create excessive negative pressure, causing the vein to collapse, especially in elderly patients with fragile veins.
Which one of the following statements is not accurate when describing veins and arteries?
- A. Veins have valves; arteries do not.
- B. Valves control the direction of blood flow in veins.
- C. Arteries have higher blood pressure than veins.
- D. Veins have thicker walls than arteries.
- E. Veins must fight against gravity to return blood to the heart.
Correct Answer: D
Rationale: Veins have thinner walls than arteries, which have thicker walls to withstand higher blood pressure.