What does purple top blood mean?

Additive. Purple blood bottles contain EDTA (ethylenediaminetetraacetic acid), which acts as a potent anticoagulant by binding to calcium in the blood.

What do the colored tops on blood vials mean?

The main difference between the two colors is that the pink top tubes are generally bigger, and get spun down in a centrifuge to separate the plasma from the cells. The pink tubes are primarily used in the blood bank, because we run tests on both the cell part and the plasma part of the blood.

What is purple EDTA blood test for?

An EDTA test is used to assess the function of your kidneys through a series of blood tests. EDTA refers to the name of the substance that you will receive by injection. EDTA contains a small amount of radioactive material. This allows it to act as a tracer which will show the kidney function.

What is in a purple top tube?


Yellow ACD Solution A consists of trisodium citrate, citric acid and dextrose 8.5 mL
Pink (K2)EDTA Draws 6 mL – Minimum 4 mL
Pearl Top (Plasma Preparation, “PPT”) Separating gel and (K2)EDTA 4.0 mL
Lavender (“Purple”) (K2)EDTA 3.0 mL

What is a yellow top blood tube for?

Yellow-top tube (ACD) This tube contains ACD, which is used for the collection of whole blood for special tests. NOTE: After the tube has been filled with blood, immediately invert the tube 8-10 times to mix and ensure adequate anticoagulation of the specimen.

Does anything have purple blood?

That’s the case for most animals on Earth. But there are exceptions. Certain types of marine worms found in shallow ocean waters around the world have green and purple blood. Meanwhile, some marine worms (such as peanut worms,) have purple blood for a different reason: an oxygen-binding protein called hemerythrin.

Is bright red blood Good or bad?

Bright red blood indicates fresh blood and a steady flow.

What do you do if you are not successful at venipuncture?

If the venipuncture proves difficult because of a hard-to-find vein, pre-warming the antecubital area or rotating the wrist might help distend the vein and make it easier to find. If dehydration might be the cause, sometimes phlebotomists can ask the patient to drink water and return later to do the draw.

What does EDTA blood mean?

A chemical that binds certain metal ions, such as calcium, magnesium, lead, and iron. It is used in medicine to prevent blood samples from clotting and to remove calcium and lead from the body. It is also used to keep bacteria from forming a biofilm (thin layer stuck to a surface).

What is a yellow-top blood tube for?

What does the Purple stopper on a phlebotomy tube do?

Tubes with purple or lavender-colored stoppers contain EDTA (ethylenediaminetetraacetic acid) additive that binds calcium ions, effectively blocking coagulation cascade. Clinical laboratories use these to test for whole blood.

What kind of blood test are purple top tubes used for?

Purple Top Tubes EDTA (Ethylenediaminetetraacetic Acid) tubes use a lavender stopper/shield, white (pearl) shield, pink stopper/shield, royal blue shield or tan shield. These tubes can be used to test CBC (Complete Blood Count), Hematocrit, Hemoglobin, and ESR (Erythrocyte Sedimentation Rate).

Which is the correct order for a phlebotomy?

The 6 Steps to Phlebotomy Order of Draw 1 Sterile Blood Culture Tubes or Vials. 2 Blue Top Tubes. 3 Red Top Tubes. 4 Green Top Tubes. 5 Purple Top Tubes. 6 (more items)

When to use blue top blood collection tube?

Blue Top – Tube contains Sodium Citrate. Most often used for coagulation studies. Must be drawn prior to collection of serum tubes to prevent contamination with clot activator and interference with coagulation cascade.