Character mistake: The prescribing doctor or a nurse should have given Matt/Joey's mom instructions on the proper use of an oxygen mask, but she did not demonstrate this. She picked up the mask, put it over her nose/mouth, and immediately inhaled ONCE followed by removing the mask. About a minute later, she repeated these ineffective steps. Instead of inhaling the oxygen, she was most likely simply inhaling "regular air" in the room - she did not keep the mask on long enough to enable release of oxygen.
KeyZOid
14th Jun 2021