diabetes Ben Flashcards
Diabetes risk factors general
- Obesity
- glucose intolerance
- pancreatic cancer
- poor lifestyle
- advanced age
- certain infections
Risk factors diabetes ben
- previous acute pancreatitis
- increase weight
- possible excess alcohol consumption
- insulin resistance
General S+S diabetes
- hyperglycemia
- recurrent infections
- prolonged wound healing
- fatigue
- polyuria
-polyphagia - ketoacidosis
What is glycosylation
hyperglycemia can lead to glycosylation-
- deposition of glucose on basement membrane of blood vessels and neurons
- affects ability of substances to move in or out of blood stream
= tissue ischemia and poor inflammatory response
= poor wound healing and infections
diabetes complications related to glycosylation
- retinopathies
- nephropathies
-neuropathies
How diabetes lead to autonomic neuropathy
- hyperglycemia leads to glycosylation of neurons
= disrupts normal action potential conduction
= neurons of autonomic nervous system affects functions
Ben diabete complications
- retinopathies (macular oedema)
- both nephropathy
- Autonomic neuropathy = gastrointestinal
- peripheral neuropathy, )peripheral sensorial loss, recurrent infections, poor wound healing)
what is retinopathies (macular oedema)
- occurs when blood vessels in eye are damaged
- fluid leaks into retina responsible for sharp, straight-ahead vision
= swelling/blurred vision
What is nephropathy
- deterioration of kidney function
- leading cause of renal failure
Diabetes path!
- occuring in blood vessels vs nerves
Hyperglycemia
- too much glucose in blood
- located in kidneys
= increase glucose filtrate
= saturation of glucose transporters
= glucose remains in urine (glycosuria)
= increase osmotic gradient
= retains more water in urine (polyuria)
= increase water loss
= increase plasma osmolarity
= thirst (polydipsia)
If occurs at blood vessels glycosylation
= decrease gas and nutrient exchange
= ischemia/hypoxia
= tissue damage
= interrupts inflammatory response
= poor wound healing/ recurring infections
If occurs at nerves
Disrupts A.P conduction
= neuropathies
not enough glucose into cells
= increase gluconeogenesis (increase breakdown of fats and proteins)
= increase lipolysis
= increase fatty acids by calls for ATP generation
= increase production of ketone bodies (ketoacidosis)
Increase lipolysis also causes
=hyperlipidemia and hypercholesterolemia
= atherosclerosis
Normal blood glucose levels
3-8mmol/L
What insulin does ben use (diabetes)
- Humulin NPH (isophane insulin)
- Humalog (insulin lispro)
What is Humulin NPH
- Long acting insulin suspension using protamine
- Regular use
What is humalog
- Rapid onset, short acting insulin
- Taken before or shortly after meals to lower blood sugar levels
What is HbA1C/ indicator of glycemic control/ range
- Reflects average plasma glucose concentration over past months
- Glycosylated hemoglobin
- Accumulates glucose over lifetime of RBC
2- 0-42mmmol/mol