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Principals of ventilation

Lädt!
During inspiration
The diaphragm contracts
The diaphragm relaxes
The lungs collapse
The diaphragm is paralysed
 
Which of the following patients is unlikely to need positive pressure ventilation under anaesthesia?
Dog undergoing corneal surgery
Dog undergoing a thoracotomy
A young puppy < 6 weeks old for a complex fracture repair
A healthy, 2 year old Labrador for castration
 
You can set the tidal volume by using the following calculation
Inspiratory flow x Expiratory time
Inspiratory flow x peak inspiratory pressure
Inspiratory flow x inspiratory time
Inspiratory flow x body weight
 
Minute volume is equal to
Tidal volume x respiratory rate
Tidal volume x peak inspiratory pressure
Tidal volume x inspiratory time
Tidal volume x expiratory time
 
PEEP is an acronym for
Positive End Expiratory Pressure
Positive End Endotracheal Pressure
Potential End Endotracheal Pressure
Potential End Expiratory Pressure
 
You can achieve a respiratory rate of 10 breaths per minute with an
Inspiratory time of 2 seconds and expiratory time of 4 seconds
Inspiratory time of 1 seconds and expiratory time of 2 seconds
Inspiratory time of 1 seconds and expiratory time of 3 seconds
Inspiratory time of 1 seconds and expiratory time of 1 seconds
 
What are the common causes of ‘fighting the ventilator’?
Low temperature and itchy skin
High CO2 and inadequate anaesthetic depth
Prolonged starvation period prior to anaesthesia
Hypoglycaemia
 
Which of the following statements are true?
Positive pressure ventilation has no effect on pre-load
Positive pressure ventilation increases pre-load
Positive pressure ventilation decreases pre-load
Positive pressure ventilation only affects after-load
 
Peak inspiratory pressure may increase due to
Secretions in the endotracheal tube
Low temperature
High temperature
Hypoglycaemia
 
Which of the following modalities can help evaluate ventilation?
Glucometer
Capnography
Temperature Probe
Midazolam