I currently work with ventilator dependent MD patients.
The pt is new vent pt. We have been having problems with I:E Ratio and low minimum volume alarms.
I:E inverted, ex: 5:1.1, or we are getting 1:1.1. Breathe rate is 32 to 50 during sleep! I called RT during night as was told to bump sensitivity from 2 to 9 and by pass LMV and put him continous Spo2 monitoring. Charted it. we were doing this for about a month, then I get pulled into office and told not to touch vent again. So for last 2 months have been answering LMV 20 to 30 times a night. Kept noting I:E ratios and breath rates on every shift I worked. Then RT comes in and is upset because we are not changing sensitivity as instructed. RN tell him that she spoke with another RT and they decided that the rapid breath rate was a normal sleep patten for pt. Alos during this time they did Co2 trending and client was staying at about 12% t\o nite. Now new orders are to increase breath rate to 18, sensitivity to 9 and by pass LMV alarm and use continous spo2 monitoring during sleep.
QUESTION. Does anyone know of a web site that has an explantion of I:E ratio, and what is normal range, what inverted signifies and the ramifications? I have been searching for weeks. Seem all I can find is results from studies on rats and mice or it involves cpap. Would like to better understand this, so I can knowledgably argue with RN about settings, and intelligably talk with RT about problems encountered.