lavendar
An activated partial thromboplastin time (APTT) test is drawn in a light blue tube. This tube contains sodium citrate as an anticoagulant to prevent blood from clotting during the test.
Blood for a folate test is typically drawn in a lavender-top tube, which contains the anticoagulant EDTA. The lavender-top tube is used for collecting whole blood specimens for hematology testing.
A red-stoppered tube is typically used to collect a sample for a lipid panel test.
The most common test to be drawn in the lavender tube is a complete blood count (CBC), which includes measurements of red and white blood cells, hemoglobin, and platelets.
The tube used for a serum ferritin test is typically a gold or tiger top tube.
A pregnancy test is drawn in an SST gold Chemistry.
When ammonia gas is produced at the bottom of the test tube and comes in contact with the litmus paper at the mouth of the test tube, it reacts with the water on the litmus paper to form ammonium hydroxide. This reaction changes the color of the litmus paper from red to blue, indicating the presence of ammonia gas. The ammonia gas diffuses up the test tube to reach the litmus paper due to differences in concentration.
Red or lavendar
purple
An activated partial thromboplastin time (APTT) test is drawn in a light blue tube. This tube contains sodium citrate as an anticoagulant to prevent blood from clotting during the test.
Blood for a folate test is typically drawn in a lavender-top tube, which contains the anticoagulant EDTA. The lavender-top tube is used for collecting whole blood specimens for hematology testing.
A red-stoppered tube is typically used to collect a sample for a lipid panel test.
The most common test to be drawn in the lavender tube is a complete blood count (CBC), which includes measurements of red and white blood cells, hemoglobin, and platelets.
For ammonia blood tests, a heparin tube or EDTA tube can be used. Heparin tubes are preferred as they can help prevent ammonia levels from changing during transportation to the lab.
The tube used for a serum ferritin test is typically a gold or tiger top tube.
A green tube is typically used for ammonia tests. It contains heparin as an anticoagulant.
The tube used to test for glucose tolerance is typically a gray-top tube. This tube contains a preservative that helps prevent changes in glucose levels after the blood is drawn, ensuring accurate test results.