Clinical Significance of Carbohydrates Flashcards

1
Q

What is stage 1 of the catabolic process?

A

The breakdown of macros into subunits.
(simples sugars, amino acids, fatty acids, and glycerol)

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2
Q

What is stage 2 of the catabolic process?

A

Sending subunits to pathways of energy metabolism. (glycolysis and the citric acid cycle)

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3
Q

What is stage 3 of the catabolic process?

A

Complete oxidation of nutrients and production of ATP.

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4
Q

What are the net products of Glycolysis?

A

2 Pyruvate
2 ATP
2 NADH

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5
Q

What are the products of the Kreb Cycle?

A

2 ATP
6 NADH
2 FADH

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6
Q

What are the products of ETC?

A

34 ATP

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7
Q

What do the prefixes Hyper- and Hypo mean?

A

Hyper- means high
Hypo- means low

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8
Q

What do the suffixes -genesis and -olysis mean?

A

-genesis means creating
-olysis means breakdown

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9
Q

What is gluconeogenesis?

A

energy from non carbohydrates

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10
Q

What is the Cori Cycle?

A

where lactate produced by working muscles are taken by the liver and converted into glucose through gluconeogenesis.

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11
Q

What effect does insulin have on blood glucose?

A

Lowers

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12
Q

What effect does Glucagon have on blood glucose?

A

Raises

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13
Q

What does Somatostatin do?

A

Keeps insulin and glucagon in check.

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14
Q

What is the hormone primarily responsible for entry of glucose into the cell?

A

Insulin

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15
Q

When is Insulin normally released?

A

When glucose levels are high and is not released when glucose levels are low.

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16
Q

What happens when glycogen stores are filled?

A

Excess glucose is converted into fat and stored in adipose tissue.

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17
Q

What hormone is the only one that decreases glucose levels?

A

Insulin. it is referred to as a hypoglycemic agent.

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18
Q

What is Glucagons primary purpose?

A

Increase blood sugar

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19
Q

When is Glucagon released?

A

during stress and fasting states

20
Q

What is the primary hormone responsible for increasing glucose levels?

A

Glucagon. It can be referred to as a hyperglycemic agent.

21
Q

What is normal blood glucose level?

A

90mg/100ml

22
Q

What is the purpose of Epinephrine?

A

it increases plasma glucose by inhibiting insulin. increases glycogenolysis.

23
Q

What is the purpose of Cortisol

A

Decreases intestinal glucose entry into the cell.

24
Q

What is the purpose of Growth hormone?

A

increases glycolysis

25
What are Ketone used for?
used for energy when glucose isn’t present.
26
What is Ketonemia?
accumulation of ketones in the blood
27
Ketosis
abnormally high levels of blood ketone bodies that arises in pathological conditions. (fasting, low carbs, prolonged vomiting, diabetes mellitus)
28
ketoacidosis
high concentration of ketone acids in the blood. most common with diabetes mellitus and alcohol consumption.
29
Hypoglycemia
blood glucose concentration below fasting value. has a plasma glucose of equal to or less than 50mg/dL.
30
Hyperglycemia
an increase in plasma glucose levels and is caused by an imbalance of hormones
31
Diabetes Mellitus
metabolic diseases resulting from defects in insulin secretion, insulin action, or both
32
Microvascular pathology
resulting in complications including blindness, renal failure, and neuropathy of the peripheral nerves.
33
Macrovascular pathology
includes complications including stroke, gangrene, or coronary artery disease.
34
diabetes is the most frequent cause of what?
blindness of persons between 25 and 74 and end stage renal disease.
35
patients with diabetes have a high rate of what? the
myocardial infarction, stroke, limb amputation, and artery disease
36
The ADA and WHO bases classification of diabetes on what?
the cause rather than their treatment.
37
Diagnosis of DM using fasting plasma glucose
concentration of more than 126mg/dL on more than one occasion
38
Diagnosis of DM using oral glucose tolerance test
2 hour 75g post load glucose level of more than 200mg/dL
39
intermediate group of fasting plasma glucose
more than 100mg/dL but less than 126mg/dL
40
intermediate group of glucose tolerance test
levels more than 140mg/dL but less than 199mg/dL
41
GDM occurs in…
6 to 8 percent of pregnancies
42
risk factors for GDM include
family history of diabetes obesity advanced maternal age glycosuria still birth
43
GDM can cause…
cesarean delivery and hypertension
44
Glycated Hemoglobin
blood saturated with sugar
45
Hemoglobin A1C
value of greater than 6.5% is diagnostic of diabetes.
46
there are 2 types of lactic acidosis
type a: hypoxic shock type b: metabolic origin