Yes ma'am as I was answering your question on this last night our system went down for maintenance. I had sent the first post and was continuing but we had a 2:00 am shut down and I am on EST.
But yes this can and will occur sometimes due to the tube placed within the area of the vocal chords. This was mentioned in my post to you last night.
I hope this better helps you understand. More info is also at the original post from last night: http://www.justanswer.com/JA/ASP_A/T_463568/TR/typical-patient.htm
I apologize for our getting lost while the scheduled maintenance was being done.