Preparation
What is the first step in preparing for a blood draw?
Gather supplies and hand hygiene
What is the primary purpose of the tourniquet in a blood draw?
To make veins more prominent by slowing blood return.
Why is it important to explain the procedure to the patient?
To reduce anxiety and ensure patient cooperation.
At what depth should the needle be inserted for a blood draw?
Insert until you feel a slight “give” as the needle enters the vein, but not deeper than necessary.
What should you do if the blood flow stops unexpectedly?
Adjust the needle position slightly or check if the tourniquet is still on.
Before selecting a vein, what crucial patient-related check must you complete?
Verify patient identity and ensure patient consent.
What is the purpose of using gloves during a blood draw?
To protect both the patient and the healthcare provider from exposure to bloodborne pathogens.
What should you do if a patient expresses discomfort during the blood draw?
Reassure the patient, assess the cause of discomfort, and, if necessary, pause the procedure to address their concerns.
What should you check for immediately after needle insertion?
Flashback of blood in the needle or tubing, which confirms correct vein entry.
What might be the cause if blood is not flowing into the collection tube during a blood draw?
The needle may be incorrectly positioned, possibly outside the vein, or the tube may not be properly engaged with the holder.
Name two ways you can make a vein more visible.
Applying a tourniquet and using warm compresses
Why is it important to use a needle of the correct gauge?
To avoid damage to the vein and ensure proper blood flow.
What is an effective way to explain the blood draw process to a pediatric patient?
Use age-appropriate language or visual aids to explain the procedure and reassure them that it will be quick and not painful.
What action should you take to avoid hemolysis during the draw?
Use a gentle vacuum on the tube and avoid excessive pulling if using a syringe.
What should you do if the patient reports a tingling sensation during the blood draw?
Stop the draw immediately and assess for nerve involvement.
What should you do if a patient has a history of fainting during previous blood draws?
Ensure the patient is seated or lying down, and monitor them closely throughout the procedure to provide support if needed.
Which equipment is used to clean the puncture site before insertion?
CHG swab
How can you involve the patient in the process to improve their comfort?
Encourage them to look away and breathe deeply.
What is the best way to handle the needle if the vein is difficult to locate?
Use minimal movement and avoid “fishing” to reduce vein damage.
What should you do if a patient experiences excessive bleeding after the blood draw?
Apply firm pressure to the site for several minutes and elevate the arm; if bleeding continues, consider applying a bandage and monitoring for signs of complications.
What is the significance of checking for allergies before a blood draw?
What is the significance of checking for allergies before a blood draw?
What safety device is required to dispose of the needle after a blood draw?
A sharps disposal container.
What should you check after the blood draw to ensure patient safety?
Observe the puncture site for bleeding and apply pressure.
Why is the order of draw important, and what is the correct sequence?
To avoid cross-contamination of additives; the correct order is blood culture, coagulation, non-additive, and additive tubes.
Why is it essential to use a new needle if a second attempt is necessary?
To prevent infection and maintain sterility.