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Vent Parameters
Basic Vent Terms
Nuggets of Knowledge
Modes of Ventilation
This & That
100
What is the normal range for the respiratory frequency?
12-20 bpm
100
Define Ventilation
Movement of air in and out of lungs
100
How we define the pressure that is required to force gas through airways and provide volume to fill the alveoli at the end of inspiration?
Peak Pressure
100
Which mode of ventilation is volume regulated, pressure variable? DOUBLE JEOPARDY!!
Volume Control
100
This setting improves oxygenation; prevents early airway closure & alveolar collapse. (Hint - it's not oxygenation)
PEEP
200
What is the normal tidal volume? DOUBLE JEOPARDY!!
5-8 cc/kg
200
Respiration
Movement of gases across the A/C membrane
200
When we breathe out, what does the diaphragm do? DOUBLE JEOPARDY!!!
Bows up, Relaxes, moves up
200
True or False - You can use pressure support mode in Pressure Control mode.
False
200
This is the pressure change inside and outside the lung. It is responsible for alveolar inflation.
Transpulmonary Pressure
300
What is a normal RSBI (Rapid Shallow Breathing Index)? (F/Vt)
<100
300
Why do gases flow?
Due to a pressure gradient. Air flows from high pressure to low pressure. When pressure = the same at the A/W opening and in the lungs, gas flow stops.
300

True or False - A patient with a neuromuscular disorder may require 8 ml/kg IBW for a tidal volume.

True

300
If a ventilator is "pressure cycled" then it will terminate the inspiration once ___________________ .
The preset pressure is met.
300

How do you calculate IBW for a female?

IBW = 105 + 5 (height in inches - 60) then convert to Kg and multiply by 6-8 ml/kg

400
Normal range for minute ventilation is ______ DOUBLE JEOPARDY!!
6-10 lpm
400
What is the ease with which the lungs expand?
Lung Compliance
400

What vent alarm will trigger when a patient is coughing?

High pressure alarm

400
What mode can give patients a spontaneous breath in between ventilator breaths?
SIMV
400
How do we define the relationship between PIP, PEEP, I-Time, and respiratory rate? (This is closely related to the Mean Alveolar Pressure)
Mean Airway Pressure
500
The critical value for a MAP or NIF is ____________
< -20
500
What do we mean when we say "vent trigger"
Vent trigger is getting the ventilator to perform or start (initiate) a breath
500
Name 3 ways the vent "triggers" a breath
Time Flow Pressure
500
A 235 lb female asthmatic comes to the ER with an asthma exacerbation. She is 5'4" and needs to be intubated and ventilated. What tidal volume would you set for her?
228-456 (4-8cc/kg IBW)
500
What are we measuring when we activate the "inspiratory hold" button? DOUBLE JEOPARDY!!
Plateau Pressure (reflects alveolar pressure)