hi i am a 20 yr old female who had to goto the e.r due to ovarian cysts , while i was there they took my oxy level in the triage and it was 94, than when they put me in a room and my oxy level was 94-100 and my pulse 88. then i heard a noise looked up and my pulse said 175 than dropped to 60 and my oxy level said 84!!?? i took it off to find the nurse and she said maybe you moved but i didnt! can these machines make mistakes like that@>>?? anyone have this happen?? please advise!! im worried now :o

these monitors such as pulse ox do dip in numbers by your breathing or moving, you say you didnt move but had you taken a deeper breath this could have happend do not worry