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The microtainer/micro collection tube holds between 250 and 500 μl of blood.
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What is a Collection tube?</h3>
This is often used in the laboratory and comprises of a plastic reservoir and a lavender color-coded closure.
The microtainer/micro collection tube holds about 250 and 500 μl of blood which is used for diagnosis etc.
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The answer from the given choices is "<span>c. two hands grasping the neck".
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The universal sign for choking is "two hands grasping the neck".
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Choking refers to a blockage of the upper airway by food or any other thing due to which a person feels difficulty in breathing. Choking can cause a straightforward coughing fit, yet entire blockage of the airway may prompt death. Breathing is an important part of life, if you don't breath obviously you will be dead. So, when choking occurs one will need a rapid medical attention.
