What is the correct order of draw when using a butterfly?

What is the correct order of draw when using a butterfly?

A winged blood collection device (butterfly) can be used for collecting a specimen as well. If it is used for coagulation studies, a waste tube must be drawn first. The waste tube is drawn first to remove the air in the tubing of the winged collection device.

Where do you put a butterfly needle?

Guidelines:

1. To hold the needle, grasp the plastic “wings” between your thumb and first finger.
2. Hold the needle with the hole (the bevel) facing up and the sharp point down.
3. Always enter the vein with the needle pointing toward the heart.
4. Pierce the skin first at a 45 degree angle.
5. Enter the vein with a quick sure stick.

What is the correct order to draw blood?

ORDER OF DRAW

1. First – blood culture bottle or tube (yellow or yellow-black top)
2. Second – coagulation tube (light blue top). If just a routine coagulation assay is the only test ordered, then a single light blue top tube may be drawn.
3. Third – non-additive tube (red top)
4. Last draw – additive tubes in this order:

What is the correct order of draw tubes only?

This standard recommends that EDTA tubes be drawn first to ensure good quality specimen, followed by other additive tubes and finally, serum specimen tubes.

When do you remove the tourniquet during a blood draw?

Once sufficient blood has been collected, release the tourniquet BEFORE withdrawing the needle. Some guidelines suggest removing the tourniquet as soon as blood flow is established, and always before it has been in place for two minutes or more.

How tight should a tourniquet be for blood draw?

You should place a tourniquet 3 to 4 in (7.6 to 10.2 cm) above the site, tying it tight enough to slow venous blood flow and loose enough not to impede arterial blood flow. Tie the tourniquet using a quick release knot, with the ends pointed away from the venipuncture site and the loop pointed toward the site.

What is a butterfly needle for drawing blood?

A butterfly needle is a device used to access a vein for drawing blood or giving medications. Some medical professionals call a butterfly needle a “winged infusion set” or a “scalp vein set.” The set gets its name because there are plastic “wings” on either side of a hollow needle used to access the vein.

Is a butterfly needle less painful?

Since butterfly needles are often less painful than straight needles, you may encounter patients who specifically ask you to use a butterfly needle. What’s important is that you use the proper gauge to get the job done effectively, quickly, and, most importantly, as pain-free as possible.

Does order of draw matter?

In the era of lyophilized anticoagulants, order of draw is no longer important. Contamination of serum samples with K EDTA will occur routinely if order of draw is not followed. Modern lab equipment can tell the difference between K from the EDTA tube and K from the patient, so order of draw is not important.

What is the purpose of a butterfly tourniquet?

Purpose: To obtain a blood specimen for patient diagnostic or monitoring purposes from a hand vein using a butterfly and ETS holder. Equipment: Tourniquet, gloves, antiseptic prep pad, butterfly needle with safety feature, ETS tube holder and tubes, gauze pads, sharps container, permanent ink pen, bandages.

Where to place the tourniquet during a venipuncture?

If you are asked to perform a venipuncture on an inpatient who is not wearing an ID band, you should ask the patients nurse to attach a new ID band before proceeding Which vein is the first choice for venipuncture? median cubital When performing a butterfly draw using a hand vein, you should place the tourniquet on the patients wrist

When to place a tourniquet on the wrist?

When performing a butterfly draw using a hand vein, you should place the tourniquet on the patients wrist During venipuncture the tourniquet should not be left on longer than: 1 minute an increase in the ratio of formed elements to plasma hemoconcentration destruction of RBCs Hemolysis OTHER SETS BY THIS CREATOR

How to venipuncture a vein using a butterfly?

Hold the wing portion of the butterfly between your thumb and index finger or fold the wings upright and grasp them together. Cradle the tubing and hold in the palm of your dominant hand or lay it next to the patient’s hand. Uncap and inspect the needle for defects and discard it if flawed. Anchor the vein and insert needle.

When to apply a tourniquet to the hand?

Therefore, when assessing for a usable vein in a hand, apply the tourniquet 1 – 2 inches above the wrist. If the tourniquet is on longer than one minute, release and reapply prior to venipuncture to avoid hemoconcentration. Choose a straight section of the hand vein– avoid the “intersection” or “V” where a vein branches into another vein.

Where do you apply a tourniquet for a phlebotomy?

The physician palpitate the area to get an idea of the vein’s size, angle, and depth. The antecubital (inside elbow) area of the arm is one of the most common sites. Once located, a special chemical could also be applied to the site to make it more visible. A tourniquet also assists the phlebotomist in finding a suitable vein for blood extraction.

Where do you insert a butterfly needle in A Vacutainer?

Insert the needle into the vacutainer holder: 5.1) Open the Butterfly needle package and remove the set.

What happens when blood is drawn by the butterfly technique?

When blood is drawn via the butterfly technique, the damage caused is very little. Thus, the blood flow stops within minutes. Puncture wounds, on the other hand, don’t bleed very much.