Serum blood collection tubes with separator gel are widely used by many laboratories for chemistry analyses. We describe a case of a primary blood collection tube filled with blood sample and a floating separator gel. The blood sample was collected from a 51 years old female in intensive care unit with the diagnosis of pneumonia into a BD Vacutainer SST tube (Becton Dickinson, NJ, USA)...
Small intestine: The part of the digestive tract that extends from the stomach to the large intestine.
Englewood Cliffs, New Jersey: Globe Book Company, 1993. The small intestine in adults is a long and narrow tube about 7 meters (23 feet) long. The large intestine is so called because it is wide in diameter. However, it is shorter than the small intestine â only about 1.5 meters (5 feet) long.. 8.5 meters.