Question

Before attaching a regulator to an H cylinder of oxygen, a respiratory therapist opens it, and gas at high pressure comes out of the cylinder outlet. Which of the following statements is true?

Question 5 options:

	This action should be performed after the regulator is attached.
	Allowing gas to escape from the cylinder lets the therapist smell the gas to make sure it is oxygen.
	This was an accident and should not be repeated.
	This action clears debris from the connector.

Answer 1

This action clears debris from the connector is the correct answer because pure oxygen at high pressure from a cylinder can react violently with the materials by which the connector is designed. For instance the connector made of steal gets highly heated when get contacted with oxygen thus leading to scatter the particles.

if regulator is attached the amount of pressure can be monitored in the metre scale and moreover if it is attached the oxygen is expelled out into the atmosphere leading to explotion

oygen has no smell so this option is not true

Before using a cylinder the therapist should follow its guidelines so that these kinds if accidents can be avoided. Thus we cannot say it is an accident