Hypo/Hyperglycemia Flashcards

1
Q

Normal range for blood sugar

A

80-120 mg/dl

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2
Q

what is the organ responsible for moderating blood glucose levels?

A

The liver

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3
Q

delta cells secrete

A

somatostatin

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4
Q

a cells secrete

A

glucagon

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5
Q

B cells secrete

A

insulin

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6
Q

Glucagon acts through what type of receptor?

A

GProtein

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7
Q

Insulin acts through what type of receptor?

A

Tyrosine kinase

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8
Q

3 major effects of insulin

A
  1. Decrease blood glucose levels.
  2. Promotes storage of fat
  3. Enhances protein anabolism
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9
Q

Type 1 diabetes is a result of

A

no B cells

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10
Q

Type 2 diabetes is a result of

A

insulin resistance

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11
Q

3 targets of insulin

A

Liver, Adipose, Skeletal muscle

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12
Q

What are the acute complications of diabetes?

A

Diabetic ketoacidosis, hyperosmolar hyperglycemic state, hypoglycemia

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13
Q

Gluconeogenesis converts what to what?

A

Pyruvate to glucose

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14
Q

pyruvate and amino acids from muscles when they are used to make energy result in

A

keto acid and alanine

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15
Q

Important intermediate in the TCA cycle (fat metabolism)

A

oxalacetate

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16
Q

What are 3 examples of ketone bodies

A

Acetone, acetoacetate, B-hydroxybutyrate

17
Q

Acetyl CoA from B oxidation is converted to what when oxaloacetate is depleted in the TCA cycle?

A

Ketone bodies

18
Q

Hyperosmalar hyperglycemic state most often occurs in which individuals?

A

Type 2 Diabetes mellitus

19
Q

Hypoglycemia results usually in diabetic individuals due to?

A

Problems in medications-over medication/poor eating

20
Q

Most chronic complications of diabetes are what type of disease?

A

vascular diseases

21
Q

Hyperglycemia damages vessels due to what?

A

Reactive oxygen species-enhanced by chronic hyperglycemia

22
Q

What does A1C test test for?

A

measures glycation of hemoglobin-allows us to measure average glucose level over a period of time. 6 or below is good.

23
Q

Fasting glucose blood test measures

A

blood glucose level immediately-preferred test for type 1 or 2 diabetes or pre-diabetes

24
Q

glucose tolerance test

A

measures how well your body tolerates increased glucose levels

25
Q

How to treat Type 1 diabetes?

A

Insulin

26
Q

secretagogues are used to treat what type of diabetes and what do they do?

A

Type II, help beta cells secrete insulin

27
Q

What are 2 sensors for blood glucose levels?

A

Liver and B cells

28
Q

ATP/ADP ratio high results in

A

Insulin secretion

29
Q

ATP/ADP ratio low results in

A

insulin not secreted

30
Q

Sulfonylureas are drugs that do what

A

beat down glucose levels generally-duration of 12-24 hours

31
Q

Meglitinides are drugs used for what?

A

Lower glucose levels-taken right before a meal

32
Q

Both sulfonylureas and meglitinides work by…

A

inhibiting K+ efflux from ATP/ADP regulated K+ channels

33
Q

Incretins are

A

GLP-1 (glucagon like peptide 1) act on GLP-1 receptor on B cells to stimulate insulin release

34
Q

why is metformin so good?

A

Insulin sparing, increases glucose uptake and reduces hepatic glucose production-helps lose weight, less risky

35
Q

Metformin opposes what?

A

glucagon (anti-glucagon)

36
Q

Drugs used to decrease insulin resistance

A

thiazolidinediones

37
Q

agonists of the PPAR-y receptor

A

thiazolidinediones

38
Q

Drugs that inhibit the digestion of glucose

A

a-glucosidase inhibitor