T1&T2DM management Flashcards

1
Q

Pancreatic beta cell deficiency causing hypoinsulinaemia and hyperglucagonaemia

A

T1DM

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2
Q

Insulin resistance causing hypoinsulinaemia

A

T2DM

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3
Q

Role of insulin and glucagon in response to homeostasis

A

Stimuli: Low BSL
Alpha cell in pancreas release glucagon into the bloodstream stimulating the breakdown and release of glycogen in the liver, therefore raises BSL to normal lvl.

Stimuli: High BSL
Beta cell in pancreas release insulin into the bloodstream attaching to insulin receptors of muscles and tissues stimulating the uptake of glucose from the blood therefore lowers BSL.

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4
Q

form of diabetes diagnosed during pregnancy

A

gestational diabetes

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5
Q

__________develops in baby and _____________ during post delivery. Gestational diabetes can develop ____________ later in life.

A

hyperinsulinaemia (high BSL of mother can bring extra glucose to baby causing extra weight)
hypoglycaemia
T2DM

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6
Q

Main treatment for T1DM

A

Insulin only!

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7
Q

Main treatment for T2DM

A

Lifestyle management
oral hypoglycaemics

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8
Q

Lifestyle management for chronic conditions - DM

A

exercise
get enough sleep
reduce stress
healthy diet (limit sugar and starch)
have fun

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9
Q

Oral hypoglycaemics

A

Metformin
SGLT-2 inhibitors
Sulphonylureas
Thiazolidinediones

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10
Q

Metformin pharmacodynamics

A

GI: decrease glucose absorption and increases anaerobic glucose metabolism

Liver: decrease gluconeogenesis, glycogenolysis, fatty acid oxidation

Skeletal muscle: increase insulin-mediated glucose uptake, increase glycogenesis (storing of excess glucose)
upregulates GLUT4 transporter (act as insulin, up-taking excess glucose to muscle and fat tissues)

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11
Q

Metformin benefits

A

NO weight gain
POSITIVE EFFECTS on cholesterol levels
DO NOT CAUSE hypoglycaemia

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12
Q

Metformin adverse effects

A

GI discomfort (N&V)
increase risk of lactic acidosis
CAUTION with people with renal failure

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13
Q

Metformin only works in the presence of ______________

A

insulin

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14
Q

Metformin can be used for T1DM to

A

decrease risk of insulin resistance or T2DM (double diabetes)

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15
Q

SGLT-2 inhibitors pharmacodynamics

A

inhibit SGLT-2 transporter which allows glucose reabsorption in the kidneys. As a result, increases urinary glucose excretion

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16
Q

SGLT-2 inhibitor medication

A

dapagliflozin - only for T2DM

17
Q

SGLT-2 inhibitors benefits

A

lowers BSL and BP
weight loss
good for cholesterol levels
unlikely to cause hypoglycaemia

18
Q

SGLT-2 adverse effects

A

UTIs
candidiasis (fungal infection)
polyuria and polydipsia
hypotension
acute renal injury
risk of ketoacidosis

19
Q

Incretins: GLP1R agonist and DPP4 inhibitors pharmacodynamics

A

GLP1R agonises GLP1 (hormone released by GIT) which stimulates insulin to increase glucose uptake. Decrease stimulation of glucagon which decreases hepatic gluconeogenesis

DPP4 inhibits DPP4 enzyme which destroys GLP1

20
Q

Incretins benefits

A

decrease BSL
no hypoglycaemia
weight loss
reduced appetite
protect beta cells
positive effects on cholesterol levels

21
Q

incretins adverse effects

A

GI upset
NOT FOR PREGNANCY and LACTATION
Liver disfunction
slows gastric emptying
pancreatitis

22
Q

Sulphonylureas pharmacodynamics

A

closes potassium channels in the beta cells stimulating more insulin release

23
Q

sulfonylureas adverse effects

A

GI upset
HYPOGLYCAEMIA
weight gain
allergic reactions to sulfonamide
hepatitis
photosensitivity
blood dyscrasias

24
Q

sulfonylureas nursing considerations

A

TAKE WITH FOOD
ONE daily doses
DONT TAKE WITH NSAIDS (increase risk of HYPO)

25
Q

Thiazolidinediones pharmacodynamics

A

PPAR-Y agonists which creates extra adipose tissue > increasing glucose reauptake
Pancreas: decrease insulin demand
Liver: increase insulin sensitivity, decrease hepatic gluconeogenesis and decrease triglycerides

26
Q

Thiazolidinediones benefits

A

lowers BSL
good for cholesterol levels
no hypoglycaemia

27
Q

Thiazolidinediones adverse effects

A

weight gain
GI upset
oedema
increase risk of HF, osteoporosis (older adults), bladder cancer and liver toxicity

28
Q

Exogenous and endogenous insulin difference

A

Exogenous - external substance injected in the body
Endogenous - internal insulin made by pancreas

29
Q

exogenous insulin pharmacodynamics

A

increase glucose uptake in muscles and adipose tissues
stimulate glycogen synthesis, glycolysis, protein synthesis

inhibit lipolysis, ketogenesis and gluconeogenesis

30
Q

insulin is mainly administered where

A

Subcutaneous only - easiest access to fat layers and better absorption

31
Q

types of insulin

A

rapid acting
short acting
intermediate acting
long acting

32
Q

insulin adverse effects

A

HYPOGLYCAEMIA
weight gain
lipohypertrophy - fat deposits from long-term use of impure insulin
local allergic reactions
systemic allergies

33
Q

nursing management for diabetes

A

encourage self-monitoring of BSLs
healthy balanced diet, exercise, lifestyle adjustment and medication adherence
awareness in long term management of consequences of HYPERGLYCAEMIA - CADs, retinopathy, nephropathy, dementia, PVD, neuropathy and cancer

34
Q

Hypoglycaemia occurs when

A

BSL is less than < 3.5 - 4.0 mmol/L - means your glycogen is depleted

35
Q

hypoglycaemia S&S

A

tremor, shaking, sweating, anxious, hunger, tachycardia, confusion, seizures and LOC

36
Q

causes of hypoglycaemia

A

fasting
increased physical activity
incorrect dose of insulin - usually high
more alcohol no food

37
Q

happens when BSL is low but symptoms are absent (even low as < 2mmol/L

A

hypoglycaemia unawareness

38
Q

exogenous glucagon pharmacodynamics

A

causes breakdown of glycogen in the liver (glycogenolysis) to stimulate the release of glucose in the bloodstream increasing BSL

REQUIRES stored glycogen - risk of depletion if the pt has exercised, fasted or drank alcohol without food