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What are the different types of tubes used for blood collection and how do they differ in terms of their purpose and composition?

There are several types of tubes used for blood collection, including EDTA tubes, serum tubes, heparin tubes, and plasma tubes. These tubes differ in their purpose and composition. EDTA tubes are used for collecting blood for complete blood counts and other hematological tests, containing an anticoagulant called EDTA. Serum tubes are used for tests that require serum, such as chemistry tests, and do not contain any anticoagulant. Heparin tubes contain the anticoagulant heparin and are used for tests that require plasma, such as coagulation studies. Plasma tubes also contain an anticoagulant and are used for tests that require plasma, such as glucose testing.


What color test tube is serum?

The color of the test tube for serum is typically red or gold. Red top tubes contain a clot activator and are used for collecting serum for various blood tests. Gold top tubes have a clot activator and serum separator gel to aid in separating serum from other blood components.


What is the purpose of the gel in the serum separating tube?

The gel in a serum separating tube acts as a barrier between the serum and the blood cells after centrifugation. It helps to separate the serum from the blood cells, making it easier to collect a clean sample for further analysis.


What color tubes have serim in them?

The Red/Gray color tubes have serum in the serum separating tubes.


What color tube do you use for electrolyte testing?

Green or light green tubes are typically used for electrolyte testing as they contain lithium heparin as an anticoagulant and separator gel to separate the serum from the cells.


Do you use heparin tube for PSA?

No, heparin tubes are not typically used for prostate-specific antigen (PSA) testing. The recommended tube for PSA testing is a serum separator tube (SST) or a plain red-top tube to obtain a serum sample for analysis.


In serum antigen present or not?

Yes, serum does contain antigens


What does the red top contain plasma or serum after processing?

serum


What color bottle is used for checking ferritin levels?

Ferritin levels are typically checked using a serum sample collected in a gold or tiger-top serum separator tube. These tubes contain a gel that separates the serum from the blood cells after centrifugation. Some laboratories may also accept light green or dark green tubes, which contain lithium heparin as an anticoagulant. Always check with specific lab protocols, as practices may vary.


What does the the SST tube contain plasma or serum after processing?

An SST tube will contain serum once its been centrifuged. SST stands for serum separator tube. It will separate the serum from the other blood components.


Does serum contain DNA?

Serum is generally free from blood cellular components but when collecting serum sometimes few cells will be pipetted with the serum & that is the only source of DNA in the serum.


What tube is stat electrolytes drawn in?

Stat electrolytes are typically drawn in a green-top (heparin) tube, or sometimes a red-top (serum) tube for urgent testing. These tubes contain anticoagulants or clot activators to preserve the integrity of the sample until testing.