What is a plain tube?


What is a plain tube?

Plain Tubes. This tube does not contain any additive. May be used for CSF (cerebrospinal fluid) testing, for taking samples from blood bags or as discard tube. First clearing tube must be used and discarded when using a butterfly/ blood collection needle for coagulation studies.

What tube is used for blood collection?

Blood Collection Tubes

Tube cap color Additive Common laboratory tests
Lavender or pink Potassium EDTA Hematology and blood bank
Gray Sodium fluoride, and sodium or potassium oxalate Glucose (especially when testing will be delayed), blood alcohol, lactic acid

What is EDTA used for in blood collection tubes?

EDTA stands for Ethylenediaminetetraacetic acid. EDTA functions by binding calcium in the blood and keeping the blood from clotting.

Why is EDTA tube used for CBC?

Anticoagulants are used to prevent clot formation both in vitro and in vivo. Historically, EDTA has been recommended as the anticoagulant of choice for hematological testing because it allows the best preservation of cellular components and morphology of blood cells.

How do you prepare EDTA tubes for blood collection?

  1. Prepare 10% EDTA solution (1 g.
  2. Let it dissolve completely (NOTE: EDTA will not go into solution until you reach pH 8.0).
  3. Get 1 cc syringes and 26G 5/8 needles and treat them with the 10% EDTA solution.
  4. Get 0.5-0.65 ml Eppendorf tubes and place tubes in ice immediately.

What color tube is used for toxicology?

Serum:Collect blood in plain red-top evacuated tube. Do not use gel barrier tubes. Allow blood to clot at room temperature for 20-30 minutes.

What are the different types of blood collection tubes?

Whole Blood Collection Tube: Whole Blood Collection tube provides high-quality blood specimen for medical laboratories. It includes 2 kinds of tubes: EDTA tube with Lavender cap (EDTA.K2/K3) and ESR tube with black cap.

What is the Order of blood collection tubes?

The order of tubes used in a blood draw is important when collecting a blood sample to prevent cross contamination in the various tubes used. The first draw is the blood culture, then the coagulation tube, non-additive tube, followed by additive tubes.

What are red top blood collection tubes?

Gold or red/gray rubber top tube known as a tiger tube contains a clot activator and gel and is used for serum separation. Red top tube also has a clot activator and is used to collect serum to test for infectious diseases, or routine blood donor screening.

What tubes contain anticoagulants?

Lavender-top tube (EDTA): Tube contains EDTA as an anticoagulant. This tube is used for preparing EDTA plasma, whole blood, and bone marrow specimens.