Diabetes Mellitus Flashcards

1
Q

What is diabetes mellitus?

A

Diabetes mellitus is a chronic condition characterised by abnormally raised levels of blood glucose.

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2
Q

Why is the management of diabetes mellitus so important?

A

Management is crucial to reduce morbidity and mortality from complications such as diabetic ketoacidosis and to prevent macrovascular and microvascular complications.

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3
Q

What is Type 1 diabetes mellitus (T1DM)?

A

T1DM is an autoimmune disorder where the insulin-producing beta cells in the pancreas are destroyed, leading to an absolute deficiency of insulin.

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4
Q

What is Type 2 diabetes mellitus (T2DM)?

A

T2DM is the most common cause of diabetes in the developed world, caused by a relative deficiency of insulin due to excess adipose tissue.

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5
Q

What is prediabetes?

A

Prediabetes refers to patients who are likely to develop T2DM but do not yet meet the criteria for a formal diagnosis.

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6
Q

What is gestational diabetes?

A

Gestational diabetes occurs when some pregnant women develop raised glucose levels during pregnancy, which can lead to adverse outcomes if untreated.

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7
Q

What is maturity onset diabetes of the young (MODY)?

A

MODY is a group of inherited genetic disorders affecting insulin production, resulting in younger patients developing symptoms similar to T2DM.

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8
Q

What is latent autoimmune diabetes of adults (LADA)?

A

LADA is a form of autoimmune diabetes that occurs later in life and is often misdiagnosed as T2DM.

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9
Q

What are some other types of diabetes?

A

Other types can result from any pathological process damaging insulin-producing cells, such as chronic pancreatitis and haemochromatosis.

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10
Q

What are the symptoms of Type 1 diabetes mellitus?

A

Symptoms include weight loss, polydipsia, polyuria, and may present with diabetic ketoacidosis.

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11
Q

What are the symptoms of Type 2 diabetes mellitus?

A

Symptoms often include polydipsia and polyuria, and may be picked up incidentally on routine blood tests.

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12
Q

What are the main ways to check blood glucose?

A

The main methods include a finger-prick glucose monitor, a one-off blood glucose test, a HbA1c test, and a glucose tolerance test.

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13
Q

What is the diagnostic criteria for diabetes mellitus?

A

For symptomatic patients: fasting glucose ≥ 7.0 mmol/l or random glucose ≥ 11.1 mmol/l. For asymptomatic patients, the criteria must be demonstrated on two separate occasions.

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14
Q

What is the HbA1c diagnostic criteria for diabetes?

A

A HbA1c of ≥ 6.5% (48 mmol/mol) is diagnostic of diabetes mellitus.

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15
Q

What are the principles of managing diabetes mellitus?

A

Management includes drug therapy to normalise blood glucose, monitoring and treating complications, and modifying risk factors for other conditions.

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16
Q

What is the treatment for Type 1 diabetes?

A

Patients always require insulin to control blood sugar levels due to an absolute deficiency of insulin.

17
Q

What is the first-line medication for Type 2 diabetes?

A

The first-line drug for Type 2 diabetes is metformin.

18
Q

What are some common side effects of insulin?

A

Common side effects include hypoglycaemia, weight gain, and lipodystrophy.

19
Q

What is the mechanism of action of metformin?

A

Metformin increases insulin sensitivity and decreases hepatic gluconeogenesis.

20
Q

What are the side effects of sulfonylureas?

A

Side effects include hypoglycaemia, weight gain, and hyponatraemia.

21
Q

What do DPP-4 inhibitors do?

A

DPP-4 inhibitors increase incretin levels which inhibit glucagon secretion.

22
Q

What is the effect of SGLT-2 inhibitors?

A

SGLT-2 inhibitors inhibit glucose reabsorption in the kidney and typically result in weight loss.

23
Q

What are GLP-1 agonists used for?

A

GLP-1 agonists are incretin mimetics that inhibit glucagon secretion and typically result in weight loss.

24
Q

Summarise the diabetes management

A