Lecture Notes Flashcards
3 step Mx to high BMs in T2DM
- Review drug chart + oral hypoglycaemics
- Check ketones if BM >12 (more than 2x in 24hrs)
- Ask diabetes specialist nurse
Mx of T2DM on steroids
Causes hyperglycaemia
May have high BM pattern
Double dose oral hypoglycaemics
OR
add 2nd agent
Target BM in hospital
6-10 (4-12 acceptable)
Insulin dependent T2DM
Usually 2x daily regime Increased insulin by 10%
Monitor BMs
T1DM -Mx if hypos overnight?
Reduce basal insulin (night dose) - Decrease by 20%
Short Acting Insulin
- Examples
- Mode of Action
- Use?
Act-rapid, Humilin-S
Onset: 30mins
Peak: 2-4 hours
Lasts: 8 hours
Use: IV in variable rate insulin
Mx of DKA, high K+
Rapid Acting Insulin
- Examples
- Mode of Action
- Use?
Novarapid/humalog
Onset: 15 mins Peak: 40 mins
Lasts: 4 hours
Use: bolus insulin in T1DM (before meals/correction)
Mixed Insulin
- Examples
- Mode of Action
- Use
Rapid + Intermediate Number = percentage of rapid acting insulin e.g. Novomix 30
Used in BD dosing (e.g. T2DM)
Long Acting Insulin
- Examples
- Mode of Action
- Use?
Lantus, glargine, degludec
Onset: 2 hours Offset: 24-42 hours (brand dependent)
Often no real peak
Usually OD basal dose
Emergency Op in T1DM Mx
BM Target?
NBM
Continue basal insulin
Stop rapid acting
Start VR infusion using table
BM target = 6-10mmol
Indications for VR infusion
T1 DM - If missing 1 meal due to fasting - No background insulin
T2DM
- If missing 1 meal and BM >12
- Poor control with HbA1c >49
- Emergency surgery
What is a VR infusion?
50 units act rapid in 49.5 ml normal saline
Run alongside Dex/sal infusion
Continue basal insulin in T1DM (at 80%)
T1DM Pre-Op
Admit night before
First on list
Stop short acting insulin
Start on VR infusion
80% basal insulin (DO NOT STOP)
T2DM Pre-Op
Omit oral hypoglycaemics (day before)
VR infusion if BM >12
If insulin dependent: - Stop insulin, give VR
VR infusion? Post Op
Stop VR 30 mins after giving short acting insulin
Increase basal dose to 100% when E+D
Mnemonic for Venturi’s
Barry White Yearns for Right-wing Government
Colour, % and L of venturi’s
Blue = 24% = 2L White = 28% = 4L Yellow = 35% = 8L Red = 40% = 10L Green = 60% = 15L
Right Hemicolectomy
Ascending colon removed
Anterior Resection
Sigmoid colon removed
Proximal Rectum removed
Abdominal-Perineal resection
Sigmoid colon
Rectum and anal canal removed
Anus is closed, colostomy created
Hartmann’s
Emergency - Sigmoid and rectum removed
Colostomy made
Can be reversed at a later date
Sub-total colectomy
Asc, trans, desc and sigmoid colon removed
Anastamosis with rectal stump to create storage pouch
Good as avoids stoma
Intra Op Complications
Bleeding
Damage to tissue
Anaesthetic risk
Allergy
Post Op Complications 1-3 days
Bleeding
Atelectasis
MI/Stroke