Diabetes Flashcards

(42 cards)

1
Q

What is the definition of diabetes?

A

Disorder of the metabolism causing excessive thirst and the production of large amounts of urine
Metabolic disease characterised by hyperglycaemia resulting from defect in insulin secretion, production or both

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2
Q

5 types of diabetes?

A
Type 1
Type 2 
MODY
Gestational 
Other - caused by steroids
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3
Q

What is type 1?

A

Auto immune - Pancreatic beta cells destruction

Insulin dependant

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4
Q

What is type 1 characterised by?

A

Presence of anti GAD / anti islet cell antibodies

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5
Q

When is a person thought to have type 2 diabetes?

A

When they don’t have the 1, monogenic diabetes or other medical conditions or Tx suggestive of secondary diabetes

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6
Q

What is MODY?

A

Monogenic Diabetes (genetic)

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7
Q

Secondary causes of diabetes?

A

Drugs
Pancreatic pathology
Endocrine causes

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8
Q

Who discovered insulin in the treatment of diabetes and when?

A
Banting
Best
MacLeod 
Collio 
1922
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9
Q

How did they figure out it helped in diabetes?

A

Dog pancreas removed and treated with insulin injections

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10
Q

Who was the first person to receive insulin to treat their diabetes?

A

Leonard Thompson

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11
Q

When is type one usually diagnosed?

A

Childhood

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12
Q

What do people wit type 1 have high levels of in their blood?

A

Anti islet cell antibodies

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13
Q

What is an insulin pump?

A

It administers short acting insulin through out the day
The rate can vary depending on the demand
Amount of insulin depends on carbohydrate intake

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14
Q

What is a continuous glucose monitor?

A

Takes subcutaneous measurements and sends them to the pump

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15
Q

What does the patient still have to decide on if they have a continuous glucose monitor?

A

How much insulin to take

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16
Q

When is type 2 usually diagnosed?

A

> 40

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17
Q

What is type 2?

A

Insulin resistant

18
Q

What is the underlying physiology of type 2?

A

Insulin resistance

Beta cell dysfunction

19
Q

What happens if you are insulin resistant?

A

Problem with downstream signalling from insulin receptors so the glucose can’t get into the cells and the blood sugar rises

20
Q

What do people have before developing type 2?

A

Impaired glucose tolerance

21
Q

What are the causes of insulin resistance?

A

Ectopic fat accumulation
Increase inflammatory mediators
Reduction in insulin

22
Q

What is insulin resistance associated with?

A
Intra abdominal obesity
Medication 
Smoking
Genetics
Inactivity 
Fetal malnutrition 
Endothelial disease
Polycystic ovaries 
Ageing 
Hypertension
23
Q

How are you tested for diabetes? (type 2)

A

Fasting glucose level >7

Given a high sugar drink and tested 2 hours later and if level >11.1 = diabetes

24
Q

Treatment for type 2?

A
Life style changed - can stop need for meds
Oral mono therapy 
Oral combination 
Injectable and oral therapy 
Drugs - metformin / sulphonylurea
25
What is the reference range when monitoring glucose ?
~4-6%
26
What is the target range when monitoring glucose levels in diabetics?
6.5 - 7.5%
27
What is the target glucose level pre meals and post meals?
Pre meal = 4-7 | Post meal =
28
What are the aims of therapy in diabetes?
Prevent hyperglycaemia Avoid hypoglycaemia Reduce chronic complication
29
What are some macrovascular complications?
IHD | Stroke
30
What are some microvascular complication ?
Neuropathy Nephoropathy Retinopathy
31
What is diabetes the leading cause of in the UK?
Blindness Dialysis Amputation
32
What is done when screening for microvascular complications?
Annual urinary albumin creatinine ratio to screen for kidney disease Annual retinal photograph Annual foot screening
33
What do the CVR guidelines state about statins?
Give them to diabetics >40 regardless of baseline cholesterol
34
What happens when glucose falls?
Release of counter regulatory hormones | Stimulate glycogenolysis
35
What is reduced hypoglycaemia awareness?
Repeated exposure to hypo reduced warning signs
36
Precipitating factors of hypoglycaemia?
``` Dosage of insulin Error in does administered Timing of meds Alcohol Exercise Renal, adrenal, pituitary insufficiency ```
37
What is DKA?
Diabetic Ketoacidosis
38
What is HNC/HONK?
Hyperosmolar non ketotic coma
39
What type of diabetes do DKA and HNC/HONK occur?
``` DKA = type 1 HNC/HONK = type 2 ```
40
Precipitating factors of DKA
``` Acute illness Injury or infection Medications Poor compliance or error in compliance with tx Psychological / social issues ```
41
What other conditions does diabetes make people at risk to?
Stroke Visual impairment Renal disease Cardiovascular disease
42
Why is there an increased risk of a hyper/hypo in patients with tooth ache
Poor oral intake Sepsis Sleep deprivation All resulting in pt modifying their normal drug regime