Management of Diabetes (type 1) Flashcards

1
Q

What are the aims (areas) of type 1 diabetes management

A

Prompt diagnosis

Encouragement of appropriate self-management skillset

Correction of current and future metabolic upsets

Facilitate long term health and well being

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2
Q

What are the key symptoms of type 1 diabetes?

A

Thirsty

Thinner

Tired

Toilet

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3
Q

In children under 5, what other symptoms/signs of diabetes may present?

A

Aside from Thirst, tired, thin, toilet

Blurred vision

Candidiasis (oral, vulval)

Constipation

Recurring skin infections

Irritability/mood changes

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4
Q

What are the symptoms and signs of DKA?

A

Nausea & vomiting

Abdominal pain

Sweet-smelling breath (ketotic)

Drowsiness

Rapid, deep ‘sighing’ respiration

Coma

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5
Q

How do you investigate suspected DKA?

A

Finger prick capillary blood glucose test

> 11 mmol/L = diabetic

Do not bother with other blood/urine tests

Then refer to paeds diabetic team for same-day referal

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6
Q

What educational services are used for type 1 diabetes?

A

Team-based:

  • Diabetic specialist nurse (DSN), practice nurse, dietitians, podiatrists, doctors

Structured education:

  • DIANE, education for dose adjustment for normal eating

However - diabetes management is pretty much all down to self management (very little health professional contact)

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7
Q

What nutrional and lifestyle advice is used in the management of type 1 diabetes?

A

CHO counting

Physical exercise

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8
Q

What skills are type 1 diabetic patients taught?

A

Includes:

Home blood glucose monitoring

Injection technique

Hypo situation training

Sick day rules

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9
Q

Why cant insulin be taken orally?

A

inactivated by the gastrointestinal tract

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10
Q

When insulin is injected into subcutaneous fat - what happens?

A

In the subcutaneous fat the Insulin molecule in solution has a tendency to self-associate into hexamers

Hexamers need to dissociate into monomers before absorption through the capillary bed. Thus soluble insulin is given 30 mins before eating

Rapid acting analogues do not form hexamers - thus dissociate much faster and can be taken just before eating

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11
Q

What are the different types of non-mixture insulin medications (by duration of action)

A

Rapid-acting analogue:

  • Humalog, Novorapid, Apidra

Short-acting soluble:

  • Humalin S, Actrapid

Intermediate-acting soluble:

  • Humalin I, Insulatard

Long-acting analogue:

  • Lantus, Levemir
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12
Q

What are the types of mixture insulin medications?

A

Rapid-acting soluble intermediate mixture:

  • Humalog mix 25/50, Novomix 30

Short-acting intermediate mixture:

  • Humulin M3, Insuman Comb 15/25/50
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13
Q

What is Basal bolus therapy?

A

Insulin treatment regime - involving a combination of Rapid (short) acting insulin for meals & basal long-acting insulin for background

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14
Q

Describe the insulin regime for if the patient takes insulin:

a) Twice daily
b) Three times daily
c) Four times daily

A

a) Twice daily:
* Rapid-acting & intermediate-acting mixture (eg Humalog mix) BB, BT
b) Three times daily:

  • Rapid-acting & intermediate-acting BB
  • Rapid-acting BT
  • Intermediate-acting BBed

c) Four times daily:

  • Short-acting BB, BL, BT
  • Intermediate BBded or Long-acting at fixed point each day
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15
Q

What is CSII?

A

Continuous Subcutaneous Insulin infusion (CSII)

Another option for insulin administration

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16
Q

Describe hypoglycaemia as a complication of diabetes

A

Hypoglycaemia refers to any episode of low blood glucose ( < 4 mmol/L )

In diabetic patients - often due to problems taking Insulin or Sulphonylureas

17
Q

What are the reasons that hypoglycaemia may occur?

A

Medication:

  • Too much insulin/SU
  • Inappropriate timing
  • Injection site problems

Inadequate food intake/fasting

Exercise

Alcohol

18
Q

What groups (of diabetics) are at risk of being hypoglycaemic?

A
  • Tight glycaemic control
    • Ie people with really bad diabetes
  • Impaired awareness
  • Cognitive impairment
  • Hypoadrenalism/steroid withdrawal
  • Coeliac disease
  • Renal/hepatic impairment
  • Pregnancy
  • pancreatectomy
19
Q

What happens if hypoglycaemia is left untreated?

A

Most isolated hypoglycaemia episodes recover spontaneously

important to reassure patients of this

20
Q

What are the symptoms of hypoglycaemia?

A

Autonomic symptoms:

  • Sweating
  • Palpitations
  • Shaking
  • Hunger

Neuroglycopenic symptoms:

  • Confusion
  • Drowsiness
  • Mood change/odd behaviour
  • Incoordination

General malaise symptoms:

  • Headache
  • Nausea
21
Q

An inability to perceive normal warning signs of hypoglycaemia is associated with?

A

Recurrent severe hypoglycaemia

Long duration of disease

Overly tight control

Loss of sweating/tremor (autonomic response decrease)

22
Q

What medications can interact with hypoglycaemic agents and precipitate hypoglycaemia?

A

Warfarin

Somatostatin analogues

Quinine

Sulphonamides

NSAIDS

23
Q

What would be classed as mild hypoglycaemia?

How is this managed?

A

Patient - conscious, orientated, able to swallow, not fasting

Management:

  • 15-20g simple CHO
    • 5-7 dextrosol/4-5 glucotabs
    • 200 ml fruit juice
  • Check Blood glucose after 15 mins and repeat i.n
24
Q

What would be classed as moderate hypoglycaemia?

How would it be managed?

A

Patient - conscious, orientated and able to swallow - but aggressive or confused

Management:

  • 1.5-2.0 tubes Glucose gel (glucogel)
  • Check bloods and repeat i.n
25
WHat would be classed as severe hypoglycaemia? How is severe hypoglycaemia treated?
Patient - unconscious/flitting or very confused Management - Out of hospital: * 1 mg IM glucagon Management - in hospital: * IV glucose * 75-80ml 20% glucose or * 150-160ml 10% glucose or * 25-50ml 50% dextrose IV Follow up with long acting CHO (in any episode of hypo)
26
What is contained in a 'hypo box'
box containing supplies for management of hypo episodes: Fruit juice Dextro energy Glucogel 20% or 50% dextrose Hypo management protocol
27
What should be discussed with a patient following a hypo episode?
Wrong regimen; dose/insulin Control and monitoring Hypoglycaemia unawareness Discuss driving / work etc Food/activity/insulin Injection sites
28
What advice should be given to diabetic patients about driving and hypoglycaemia?
Patients should be advised to: * check their blood glucose before/within 2 hours of driving and during long car journeys * always carry carbohydrate in the car. No awareness then no driving No more than one episode of severe hypo (Group 1) in a year to be allowed to drive
29
What are the symptoms of diabetic ketoacidosis (DKA)?
Polyuria Polydipsia Weight loss Weakness Nausea/vomiting Abdo pain Breathlessness
30
What are the risk factors for DKA
Known T1DM inadequate insulin infection other precipitant
31
What are the signs of diabetic ketoacidosis DKA? (signs much more of a giveaway for diagnosis of DKA)
Dry mucus membranes Sunken eyes Tachycardia Hypotension **Ketotic breath** **Kussmaul respiration** - fast, deep, sighing **Altered mental state** Hypothermia
32
What are the overall rules for when treating acute illness in patients who are diabetic?
**Never** stop insulin * Increase/adjust insulin dose according to blood glucose Perform **more frequent** blood glucose checks Check urine or blood for **ketones** Carbohydrate intake must be maintained by fluids (eg fruit juice) if unable to tolerate food
33
What causes DKA to happen?
Results from too little insulin - leading to breakdown of fat(producing tons of ketones) with fluid depletion Usually associated with high glucose May be caused by infection / severe stress/insulin omission
34
What ketone level risks DKA
\> 1.5 mmol/L
35
Describe the initial investigations for DKA
Initial response: * Rapid A,B,C * IV access * Vital signs * Clinical assessment * Full clinical examination Investigations: * **Glucose** * Venous **blood gas** - shows pH of blood (acidosis) * Urinalysis/blood **ketones** * **U&Es, FBC** * Culture blood/urine to check for infection as cause * ECG & cardiac monitor * Possible CXR
36
What are the possible complications of DKA
**Hyper/Hypokalaemia** **Hypoglycaemia:** * Rebound ketosis * Arrhythmias * Acute brain injury Cerebral oedema (especially in kids) Aspiration pneumonia Arterial and venous thromboembolism ARDS
37
Give a summary of the management of DKA
Main investigations: * glucose * U&E’s * Ketones * Bicarbonate * Arterial blood gas IV saline - to rehydrate IV insulin - drive glucose and potassium into cells IV potassium in saline IV antibiotics - if infection Heparin if needed NG tube if needed
38