Surgery Flashcards
What is the purpose of the cricoid pressure?
It prevents the passage of gastric contents into the airway
Which airway device protects lungs from aspiration?
Tracheal tube
Elective surgery fasting periods
2h clear liquids, 6h solids
Which artery supplies the 1st and 2nd parts of the duodenum? *common area that’s source of major haemorrhage in peptic ulcer disease
Gastroduodenal artery
Most appropriate method of analgesia post- major abdo surgery for pt with resp disease
Epidural anaesthesia
— avoid opioids
Which drug is used to reverse effects of GA?
Neostigmine
Opioids from weak to strong
Spinal anaesthesia is indicated in which group of pts?
bleeding disorders
When should prophylactic abx re colonic resection?
Within one hour up to incision point, ideally as near as possible
When to stop clopidogrel pre surgery?
7 days
When to use VRII in surgery?
- Likely miss >1 meal
- Emergency surgery
- Poorly controlled DM
If pt is missing 1 meal only, which diabetes meds are taken differently on day of?
- Sulphonylurea -> omit AM due to risk hypo
- SGLT2i -> 1/2 AM due to risk ketoacidosis
- Metformin -> omit on day and 48h after IF using contrast, OR eGFR <60
if pt missing 1 meal only, which insulin meds need to be changed day before surgery?
Once daily insulins -> reduce by 20%
If pt missing 1 meal only, which insulin meds need to be changed day of surgery?
- Once daily -> reduce by 20%
- BD -> 50% of AM dose
- Basal bolus -> omit AM and lunch short acting
If ER surg and DM pt, how often check CBG?
hourly
