I did nothing wrong

This happened about 2 or 3 hours ago..
I was just about to finish my shift when I saw my friend attending a patient..
I want over to help.. The patient was ill..


As he was on hourly BP monitoring, I check his BP using a machine..
Manual BP couldn' be done as the korokoff sound cannot be heard..
It shows error at first, but then the staff nurse managed to get the result which was 45/38..


Then my friend discovered that the patient's fingers was a little cyanosed..
So I check his SpO2 level, it was 66% in O2-2L..
I informed the staff nurse and she ordered to increase the O2..
The SpO2 was fluactuating so I charted his results in the observation chart..
The SpO2 was still in abnormal range..
The nasal prongs was changed to face mask, then non-rebreather mask and O2 increasing..


As the staff nurses was managing the patient, I charted the progress of what is happening..
All of sudden, on of my senior asked why am I charting??
I was like, am I wrong doing it???


Not just that, the staff nurse said I shouldn't be doing the chartings!


I was so dissapointed in their response!


Am I doing wrong?
Is it my mistake?
Was that incorrect?


If so, I really don't know which is the right way..
I was thought that documentation is very important, and I stand by this principle!

I did nothing wrong..