The colors mean different things in different countries. If you want a correct (reliable)answer, try again with the specification of your country.
Green Top tubes contain Lithium Heparin. Blue top tubes contain Sodium Citrate.
Blood for a Basic Metabolic Panel (BMP) or Sequential Multiple Analysis (SMA) test is typically drawn into a green or red-topped tube. Green top tubes typically contain lithium heparin as an anticoagulant, while red top tubes do not contain any anticoagulant.
The royal blue tube contains the additive lithium heparin which is used to prevent clotting by inhibiting the coagulation process. It is often used in chemistry tests that require plasma samples as it does not interfere with most of the analytes being measured.
A red top tube (serum separator tube) is typically used to collect blood for digoxin level testing. The tube should be inverted gently to mix the blood with the anticoagulant and clot activator present in the tube. Once the sample is collected, it should be processed promptly to separate the serum for analysis.
A lavender or light blue tube is typically used for an amylase blood draw as it contains an anticoagulant (lavender tube) or no anticoagulant (light blue tube) needed for the test.
The tube color commonly used for trace metal analysis is typically royal blue. Royal blue tubes typically contain heparin as an anticoagulant and are used for collecting plasma samples for trace metal analysis.
A BUN (Blood Urea Nitrogen) test is typically drawn in a lavender or green-topped tube, which contains an anticoagulant called heparin. The choice of tube color may vary between healthcare facilities, so it's always best to confirm with the specific laboratory where the test will be done.
A trip or multilobed blood cell with purplish blue cytoplasmic granules. They release histamine and other mediators of inflammation, contains heparin.
A light blue top tube is typically used for Protime blood collection, as it contains sodium citrate as an anticoagulant.
lavender green blue light blue grey
lavender green blue light blue grey
A green-top tube (lithium heparin) or a royal blue-top tube (EDTA) is typically used for phosphorus testing. It is important to check with the laboratory where the sample will be analyzed, as requirements may vary.
A light blue-top tube is commonly used for partial thromboplastin time (PTT) testing, as it contains sodium citrate as an anticoagulant.