When finding the mass of air, you need to have a test tube and a stopper. Measure the mass of the test tube and the stopper together. Then, make sure that the air gets in the the tube and put the stopper on. Recheck the mass of the air, test tube, and stopper and subtract just the tube and stopper from the newly recorded mass to find the mass of air.
sst tube contain a specific type of gel that separates the blood after centrifuge.
If a grey stopper tube is collected before a lavender shield tube, contamination from the additives in the grey stopper tube may lead to inaccurate results in the lavender shield tube, especially for analytes sensitive to contamination or carryover effects. It is important to follow the recommended order of draw during blood collection to prevent such issues.
red stopper/silicion coated
A gold or red-stopper tube is typically used when drawing a lipid profile. These tubes contain a clot activator to separate serum from blood cells during the centrifugation process.
A green or dark green tube is typically used for collecting blood samples for bilirubin testing. These tubes contain heparin as an anticoagulant.
The three tubes that contain plasma are the red-top tube, green-top tube, and lavender-top tube. Plasma is the liquid component of blood that does not contain cells and is obtained by spinning down a blood sample in the presence of an anticoagulant.
Arterial blood gas (ABG) samples are typically collected in heparinized syringes with a green stopper. This color-coded tube helps prevent clotting and ensures accurate results for blood gas analysis.
Tan Stopper
The purpose of a Hemoguard stopper on an ETS tube is to prevent any blood or fluid from leaking out of the tube during transportation or handling. The Hemoguard stopper is designed to create a tight seal and provide a barrier against any potential leaks or contamination. This helps ensure the integrity of the sample and maintain the accuracy of test results.
The same thing just happened to me.I used a sheetrock screw and scewed into the stopper and it pulled right out.
A light blue stopper tube is typically used to collect blood specimens for prothrombin time tests. The light blue stopper indicates the presence of sodium citrate as an anticoagulant, which is important for accurate testing of clotting factors.