Flashcards in Monitoring Anaesthesia Deck (27)
Why is monitoring anaesthesia important?
- Ensure appropriate depth of anaesthesia is given for the procedure
What 3 systems are prioritised when monitoring a patient?
- Central nervous
What is the normal HR for dogs and cats?
- Dog = 70-140
- Cat - 100-200
What superficial arteries would you palpate? Name 2
- Palmar meta-carpal
When palapating the apex beat you realise the pulse is low. What is this commonly a sign of?
What do stethoscopes help you monitor? (heart)
- Valve function
What is the best kind of stethoscope to use when monitoring a patients heart?
- oesophageal stethoscope
Name 2 methods of indirectly measure blood pressure/ pulse quality
- oscillo-tonometry (pneumatic cuff)
- Ultrasonic (doppler)
Name a direct method of measuring blood pressure/pulse quality
transducer via intra-arterial catheter
What is the normal CRT and name a reason why it may be delayed
normal = <2 seconds
Delayed - hypotension or vasoconstriction
What are bright pink mucous membranes a sign of?
What are white mucous membranes a sign of?
Hypotension / blood loss
What are blue mucous membranes a sign of?
How is haemoglobin saturation measured?
How does pulse oximetry work?
- Red and infrared light beams used to detect presence of oxygenated arterial blood
Also measures pulse rate
How is perfusion monitored ? Name 2 methods
- Pulse pressure
- Pulse oximetry
- Temperature (extremities in comparison to core)
- Urine output (if >1ml/kg/hr then perfusion is adequate)
How can looking at the surgical sight signify good perfusion or bad perfusion
Good perfusion = red blood oozing at site
Poor perfusion = dark oozing blood
What 3 things impact the depth of anaesthesia required?
- Activity during surgery
- Skin experience
How do you check a patients CNS activity
- Reflexes (cranial Nerve)
name 3 cranial nerve reflexes you should tests?
- jaw tone
- Tongue curl
- Eye position
- Pupil diameter
- Corneal reflex
- Salivation (profuse in inadequate anaesthesia)
- Lacrimation (dry in deep anaesthesia)
What is the normal resp rate for cats and dogs?
Dog - 10-30
Cat - 20-30
What is the anaethetised resp rate for cats and dogs?
- Cat - 20-30
- Dog - 8-30
What impacts resp rate during anaesthesia? (3 things)
- Depth of anesthesia
- Surgical stimulation
- Drugs used
What drug causes apnoea
What autonomic responses are expected to react during procedures?
- Heart rate
- blood pressure
- Pupil diameter
- Skeletal muscle tone and response to toe pinching
How do monitor respiratory rate? (name 2)
- wrights respirometer
- Pulse oximeter
- AP alert
- Ausculation, counting, watching bag