T2DM Care Flashcards
What is T2DM?
Insulin is secreted but not enough to overcome insulin resistance
What increased T2DM risk?
Obesity
Age
Family Hx
Gestational diabetes
Ethnicity
HTN
What are the presenting features?
NOT usually weight loss
No ketonuria
Onset over months
What is the fasting plasma glucose diagnosis?
> 7mmol/L
What is the 2hrs post-prandial glucose diagnosis?
> 11mmol/L
What is the HbA1c diagnosis?
> 48mmol/mol
What should diet be like?
Eat wide range of foods - fruit, veg + starchy foods
Keep sugar + fat to minimum
Do NOT skip meals
How much exercise?
30mins/day 5 days/week
What education is available?
DESMOND/XPERT
What is DESMOND/XPERT?
Prepare individuals to cope with disease
Help to make informed decisions about care
Help patients make behavioural changes
What are the benefits of weight loss?
Decreased insulin requirement
Decreased diabetes risk
Increase HDL
Decreased LDL, cholesterol + triglycerides
Decreased BP
What are the 3 treatment targets?
Lipids
BP
Blood glucose
What are the microvascular complications?
Cognitive impairment
Retinopathy
Neuropathy
Diabetic foot
Sexual dysfunction
What are the macrovascular complications?
Cerebrovascular disease
Coronary heart disease
Peripheral vascular disease
What is monotherapy?
Lifestyle management + metformin
What is dual therapy?
Lifestyle management + metformin + additional agent
What is triple therapy?
Lifestyle management + metformin + 2 additional agents
What is the MoA for Sulphonylureas + Meglitinides?
Stimulate pancreas + increase insulin production
What is the MoA for Biguanides?
Act on liver + cells to decrease glucose production
What is the MoA for Thiazolidinediones?
Act on liver + cells to reduce insulin resistance
What is the MoA for alpha-glucosidase inhibitors?
Acts in the gut to slow absorption of sucrose/starch
What is the MoA for DDP4-inhibitors?
Acts on pancreas + brain to increase the effects of incretin
What is the MoA for GLP-1 agonists?
Acts on pancreas + brain to increase the effects of incretin
What is the MoA for SGLT-2 inhibitors?
Acts in the proximal tubules of nephrons in kidney to inhibit sodium-glucose co-transporter 2 leading to increased glucose excretion
What is an example of Biguanides?
Metformin
What does metformin do?
Decrease hepatic glucose production
Increase insulin sensitivity
Improve peripheral glucose
Delay intestinal glucose absorption
What are the side effects of metformin?
N+V
Diarrhoea
B12 deficiency = slow titration to avoid
What are the cautions of metformin?
Stop if eGFR <30L/min
What are the contraindications of metformin?
Risk tissue hypoxia in renal function (acute HF, resp failure + liver failure)
If having general anaesthesia suspend at least 24hrs before
What is an example of Thiazolidinedione?
Pioglitazone
What does Pioglitazone?
Increase insulin sensitivity
What are the side effects of Pioglitazone?
Weight gain
Oedema
Anaemia
GI disturbances
Headaches
Dizziness
Liver toxicity = uncommon
What are the contraindications of Pioglitazone?
Hx HF
Haematuria
Previous/active bladder
What are the cautions with Pioglitazone?
Elderly = increased risk of fracture
HF + bladder Ca
Increased risk of fractures
Bladder cancer risk
CV risk
What is an example of sulphonylureas?
Gliclazide
What does gliclazide do?
Increase insulin secretion
What is the dose for gliclazide?
Oral up to TDS with meals
What are the side effects of gliclazide?
Hypoglycaemia
GI disturbances
Weight gain
Rashes
What are the contraindications of gliclazide?
Ketoacidosis
Acute porphyria
Severe hepatic impairment
What are the cautions of gliclazide?
G6PD
Renal impairment may increase risk of hypos
What is the dose of Pioglitazone?
Oral OD (does NOT needed to be taken with meals)
What is the dose of metformin?
Oral up to TDS with meals
What is an example of Meglitinides?
Repaglinide
Nateglinide
What does Nateglinide do?
Increase insulin secretion with a rapid onset + short duration of action
What are the side effects of Nateglinide?
GI
Hypos
What are the cautions with Nateglinide?
Elderly
Malnourished
What is the off note of Nateglinide?
Can be used alone or in combo with metformin
What is the dose of Nateglinide?
Oral TDS with main meals (within 30mins before meal)
What is an example of DPP4 inhibitors?
Sitagliptin
What does sitagliptin do?
Increase insulin secretion
Decreases glucagon secretion
What is the dose for sitagliptin?
Oral OD (does NOT have to be with meals)
What are the side effects of sitagliptin?
GI
Weight neutral
Headache
Nasopharyngitis
Rash
Pancreatitis
Joint pain
What are the cautions of sitagliptin?
Renal impairment = dose reduced
Moderate to severe HF
Hx pancreatitis
What are the contraindications of sitagliptin?
Ketoacidosis
What is an example of SGLT-2 inhibitors?
Dapagliflozin
What does dapagliflozin do?
Increase urinary excretion of glucose
What are the side effects of dapagliflozin?
Dyslipidaemia
UTI
Thrush
Nausea
Constipation
Ketoacidosis
Lower limb amputations/fractures
Which SGLT-2 increases risk of amputation?
Canagliflozin
What are the contraindications of dapagliflozin?
SGLT2 discontinued if eGFR <45
>60
What are the cautions of dapagliflozin?
Renal impairment
Hx HTN
Elderly
CVD
Vol depletion - eg. loop diuretics
What is an example of a GLP-1?
Liraglutide
What does liraglutide do?
Increase insulin secretion
Reduce glucagon secretion
Reduce gluconeogenesis
Slow gastric emptying
What is the does of liraglutide?
Up to OW - S/C injection (does NOT have to be with meals)
What are the side effects of liraglutide?
GI
Hypos
What is the cautions with liraglutide?
Elderly
Risk of thyroid tumours?
Pancreatitis
What are the contraindications of liraglutide?
Ketoacidosis
Severe GI disease
eGFR <30
When may insulin be introduced?
Transiently in special circumstances - eg. surgery
Inadequate control
Offer high dose
What is the dose for SGLT-2
10mg OD
What are the Sick Day rules?
If vomiting, diarrhoea, fevers, sweats or shaking
STOP taking…
ACEi
ARBs
NSAIDs
Diuretics
Metformin
SGLT-2
Acarbose
Which medications must be reviewed on Sick Days?
Sulphonylureas/meglitinides = not eating may be at risk of low = consider decreasing dose/stopping
GLP-1/DPP4’s = medical advice if severe abdominal pain
Pioglitazone = medical advice if SoB
What family planning is needed?
Folic acid 5mg OD
Refer to pre-natal/gestational diabetes clinic ASAP
Many medications teratogenic
What are precipitating factors of HHS?
Pneumonia
UTI
Cerebrovascular disease
MI
Trauma
Inadequate fluid intake
When do you rehydrate fast for HHS?
AKI
Consequence of profound dehydration
When do you rehydrate slowly for HHS?
Initial severity
Elderly
HF
How is fluid loss estimated for HHS?
Between 100-220ml/kg
How do you diagnose HHS?
Marked hypovolaemia
Serum osmolarity >320
Marked hyperglycaemia
Without hyperketonaemia
Without significant acidosis
What are the treatment goals for HHS?
Normalise osmolarity
Replace fluid + electrolyte abnormalities
Normalise blood glucose
How do you monitor osmolarity in HHS?
0-6hrs = check every 1hr
6-12hrs = check every 2hrs
12-24hrs = every 4hrs (if not improved every 2hrs)
How do you monitor blood glucose?
0-6hrs = every hr
6-12hrs = every hr
12-24hrs = every hr
How do you monitor clinical status?
Cardiac
Urine output
Establish IV access
How do you monitor precipitating factors?
Review for sepsis, foot infection, treatment omission, vulnerable person + vascular event