another name for test tube is culture tube or sample tube
tube light
red tube
what is a gas measuring tube
A retort stand is to hold a test tube/ boiling tube. 1. Turn the side knob( by the "t" on the retort stand) and release it. 2. Put the test tube/boiling tube in the test tube/boiling tube holder. 3. TIGHTEN the side knob ( if not the test tube/ boiling tube will drop). 4. Adjust the height of the retort stand by turining the most corner knob. (if you need to)
Inverting a tube of blood will not prevent it clotting. Only an anticoagulant will do this, the different coloured tops on blood samples refer to the different anticoagulants or lack thereof inside the tubes. Inverting the tube is done to mix blood samples that have settled gently inverting the tube 6-10 times is enough to mix the blood. Inverting the tube more than this or doing it too violently could trigger clotting even in a sample containing an anticoagulant.
red topped tube
What does the evacuation system
JJ Thompson
A vacuum tube does not contain any gases. All the gases are evacuated from the tube and only vacuum is left.
Both time and temperature can decrease the vacuum draw of an evacuated tube. Hence the provided expiration dates and storage temperature of tubes. The vacuum of a tube will decrease if it is too old or if stored at a colder temperature than recommended.
No
The yellow evacuated tubes are for blood cultures.
21g
It needs to be 100% full as the light blue tube.
advantage of inverting amplifier
positive in inverting and negative in non inverting