Define diabetes.
metabolic disorder of multiple aetiology characterised by chronic hyperglycaemia with metabolic disturbances leading to defect in secretion and/or action of insulin
What are the symptoms of diabetes?
How is diabetes diagnosed?
fasting glucose > 7.0 mmol/L random > 11.1 mmol/L HbA1c 6.5% or 48 mmol/mol one is diagnostic if symptomatic 2 if asymptomatic
Name 3 investigations that you would carry out following diagnosis of diabetes.
Define T1DM and briefly describe its pathogenesis.
List the genetically susceptible T1DM triggers.
viral infections - enterovirus immunisations diet - cow's milk at early age increased SE status obesity vitamin D deficiency perinatal factors - maternal age, history of preeclampsia
How does T2DM differ from T1?
T2 involves insulin resistance rather than absence with relative deficiency as a result
Maturity onset diabetes of the young is an autosomal dominant condition. Name the main gene associated with it and 3 of its main clinical features.
What are the risk factors for development of gestational DM? (3)
high BMI, previous GDM, family history of DM
Women with risk factors should have OGTT at 24-28 weeks. Which values are consistent with diagnosis of GDM?
What disorders can lead to secondary diabetes?
Briefly describe the mechanism by which insulin in secreted.
Discuss the different types of insulin analogue used in the management of T1DM.
What are the benefits of using insulin pens?
What are the benefits of pump therapy?
What are the disadvantages/complications with using pump therapy?
What are the 3 components of Whipple’s triad for hypoglycaemia?
What is the four step treatment for hypoglycaemia?
What are the DVLA rules regarding patients with hypoglycaemia?
BG > 5 mmol/L - carry CHO
BG 4.5, eat before driving
If hypo - wait 1 hour before driving and for BG > 5
What 3 things are seen in diabetic ketoacidosis?
Is DKA more commonly seen in T1DM or T2DM?
T1DM
Describe how untreated DKA can cause fatality in the young and in adults.
- adults: severe hypokalaemia, ARDS, illness causing decompensation
Briefly describe the pathophysiology of DKA.
What are the clinical features of DKA?
polyuria, polydipsia, weight loss, breathlessness (Kussmaul’s respiration), abdominal pain, leg cramps, N&V, ketone smell in breath if severe