Anaesthetics Formative Flashcards
true or false: when interpreting PaO2 the inspired oxygen isn’t important
false
PaO2 must always be interpreted against inspired oxygen.
what is the minimum normally accepted urine output
0.5ml/kg/hour
what tests help diagnose dehydration
urea
creatinine
what is the normal daily potassium requirement
1-2 mmol/kg
what is the normal daily sodium requirement
1-2mmol/kg
that are the normal daily water requirements
25-30ml/kg
2-2.5l a day for a 70kg man
how to give nalaxone to someone with resp depression after opioids
40 microgram increments titrated to effect and reassess patient
how long should warfarin be withheld for before surgery
5 days
what outcomes are associated with poor blood glucose control peri-operatively
increased risk of infection
increased cardiovascular complications
Irreversible brain damage
how do you measure the size of an oropharyngeal airway
from the angle of the mandible to the incisors
what is the normal PaO2
(arterial partial pressure of oxygen)
norm 9.3-13.3
how do you calculate mean arterial blood pressure
cardiac output x systemic vascular resistance
how to calculate cardiac output
HR x Stroke volume
which gauge of cannula gives the most rapid IV infusion rate
14G (orange)
smallest is 22G blue
where does the needle go for a pleural aspiration
second intercostal space mid clavicular line
what is the correct route and dose of adrenaline administration in cardiac arrest
1mg IV
what is the correct route and dose of adrenaline in anaphylaxis
0.5mg IM
what drug reverses the effects of benzodiazepines
flumazenil
how should you manage a person with a GCS less than 8
urgently assess for intubation and ventilation
true/false the epidural space and the extradural space are the same thing
true
what does the epidural space contain
adipose tissue
venous plexus
spinal nerve roots
what are the adverse effects of an epidural block
hypotension
partial block
post dural puncture headache
nausea
adverse effect of opioids used in the epidural space
itch
