Introduction to Case Flashcards
What are the complications of type 1 diabetes
- leading cause of heart disease
- most common cause of blindness, renal failure, ulceration and amputation
where does type 1 diabetes occur
in the pancreas
- pancreas detects changes in blood glucose
name the cells within the pancreas
- alpha-cells
- insulin producing B cells
what are a-cells in the pancreas
red cells surrounding islets which mobilise glucose
what are insulin producing b cells
respond to changes in blood glucose and secrete insulin
what cells are damaged in type 1 diabetes
insulin producing B cells
what is meant by hypoglycaemia
low blood glucose
what is meant by hyperglycaemia
high blood glucose
describe the islets found in type 1 diabetes
no insulin producing cells
- B cells failure
- leaving patients dependent on insulin injections
describe the islets found in type 2 diabetes
slower but eventual B cell failure
what is type 1 diabetes known as
insulin dependent diabetes mellitus
describe the onset of type 1 diabetes
early/juvenile onset
5-10% of diabetes is type 1
how does type 1 diabetes occur
autoimmune destruction of B cells
what can be used to test blood glucose
finger prick monitoring testing 10-15 times a day
- to keep blood glucose under control
what are insulin pumps
automated system to deliver insulin
- cannula with a small needle given in the abdomen
outline the symptoms of type 1 diabetes
- unexplained weight loss- as glucose is not being used for energy
- polydipsia (increased thirst)- as body is trying to get rid of excess blood glucose
- polyuria (frequent urination)
- polyphagia (increased hunger)- without insulin, unaware that you have high glucose level
- blurred vision (one or both eyes)- due to changes in osmotic pressure in the eye
- dizziness, due to dehydration/low blood pressure
- fatigue- can’t process glucose
- genital itching, bacterial infections or yeast infections
- slow wound healing/infections- due to nerve damage
name the diagnostic tests used for type 1 diabetes
- a random plasma glucose test
- fasting plasma glucose tolerance test
- oral glucose tolerance tests
- HbA1c
how is a random plasma glucose test used as a diagnostic test for type 1 diabetes
- blood is drawn and tested for the level of glucose in the blood
- random plasma glucose concentration of >11.1mmol/l
how is a fasting plasma glucose tolerance test used as a diagnostic test for type 1 diabetes
- no food/drink 8-12 hours prior to test
- blood is drawn and tested for level of glucose in blood
- fasting plasma glucose concentration of >7mmol/l
how are oral glucose tolerance tests used as a diagnostic test for type 1 diabetes
- no food/drink 8-12 hours prior to test
- drink 75g of glucose (lucozade)
- blood is tested 2 hours later
- plasma glucose concentration of >11.1mmol/l, 2 hours after test
what is HbA1c used for
used as a diagnostic test and management tool
what is HbA1c
glycosylated haemoglobin
what is HbA1c level like in patients with type 1 diabetes
high HbA1C
how can HbA1C be used as a management tool
- tells us how controlled blood glucose is over last 3 months
- looking to see if HbA1C decreases after starting treatment regime