The recommended tube color for collecting blood samples for AST or ALT tests is a plain red top tube without any additive. This allows for serum separation.
Red
LAVENDER
Red
A red-top tube is typically used in phlebotomy for an RPR (Rapid Plasma Reagin) test.
red
marble top/golden rod
The lavender or purple-top tube is typically used to measure iron levels in phlebotomy. This tube contains EDTA (ethylenediaminetetraacetic acid) as an anticoagulant to prevent clotting.
The lavender-top tube or EDTA tube is typically used for Hgb A1c testing in phlebotomy. It helps prevent clotting by binding calcium ions.
The color tube that contains sodium fluoride as an additive is typically gray. Sodium fluoride is added to inhibit glycolysis in blood samples for glucose testing.
The color top tube used to collect whole blood with an additive is typically a lavender or purple top tube. This type of tube is commonly used for collecting blood samples for hematology testing.
You can use either a red top or a tiger