Vent Exam Flashcards
What kind of Modes are on the vents?
AC (Assist control) and SIMV (synchronized intermittent mandatory ventilation)
What type of breath types are there on the vent?
Volume and Pressure
What is AC ventilation mode?
Assist control, Takes away work of breathing, easier control of ventilations, specific amount of breath is given.
What is SIMV mode on vent?
Synchronized Intermittent Mandatory Ventilation. More comfortable for spontaneously breathing patients. Gives breath if patient does not take the spontaneously breath or pushes off the next breath if they do take a spontaneous breath
Cons of AC mode?
Can cause breath stacking and barotrauma, Asynchrony
Cons of SIMV mode?
Pressure support must be titrated to help remove work of breathing.
What is a volume controlled breath type?
A tidal volume is set based on ideal body weight. 6-8 cc/kg
What is a pressure control breath?
A pressure you wish the breath reaches
What is the ideal pressures for pressure control breaths?
Ideally 15-25 but should not exceed 30 to avoid trauma.
What does Spf stand for?
Total number of spontaneous respirations
What does f stand for?
Frequency the total number of breaths the patient has received
What does PEEP stand for and mean?
Positive End Expiratory Pressure, Keeps alveoli open and improves oxygenation
What does FIO2 stand for and mean?
Fraction of Inspired Oxygen, the percentage of oxygen being administered to the patient.
I-time means and stands for?
Inspiratory time, the amount of time a machine controlled breath will take to be delivered.
Normal I-Time for adults, adolescents, toddler/school age, infant?
Adult: 1 second, Adolescents: 0.7 seconds, Toddler: 0.5 second, Infant: 0.3 seconds.
What is PIP?
Peak Inspiratory Pressure. The pressure in your lungs at the peak of a breath
What is the normal range for PIP?
Less than 40 but Ideally less than 30.
What is pPlat?
Plateau pressure, Represents the pressure applied to smaller airways and alveoli by mechanical ventilator
What Is pPlat’s normal range?
Should be less than 30.
What categories are in Lung protective strategy?
Barotrauma, Volutrauma, and Environmental trauma.
How to protect against Barotrauma?
Keep pPLAT less than 30.
How to protect against Volutrauma?
Keep tidal volumes between 6-8 cc/kg of Ideal Body Weight
How to protect against environmental trauma?
Utilize the HME filter or humidified vent.
What do you do if you have a high pressure alarm with a high pip but normal pPLAT?
Sedate, Suction, and check for kinks and bends in the circuit
What do you do if you have a high pressure alarm with a High pPLAT?
Make sure tidal volume is 6-8 cc/kg per IBW. Raise head 30-45 degrees, and treat based on the lung pathology (Ex. COPD patients, Asthma patients, Pneumonia patients.)
What to do when a low peak pressure is alarming?
Check circuit for leaks or tubing disconnect, Check tube cuff inflation, Ensure tube is not dislodged, Ensure adequate tidal volume is set.
How to measure IBW?
Males: 50kg + (2.3kg x every inch over 5ft)
Females: 45kg + (2.3kg x every inch over 5ft)
What is I:E ratio mean?
Inspiratory expiratory ratio. Inspiratory time vs expiratory time
What is a normal I:E ratio?
1:2 to 1:4
What does spVTE mean?
Spontaneous exhaled volume.
