electrolytes part 2 Flashcards

1
Q

what are the structural functions of the calcium

A

Bone
Teeth

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2
Q

what are the neuromuscular functions of calcium

A

Control of Excitability
Release of neurotransmitters
Initiation of muscular contraction

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3
Q

enzymatic function of calcium

A

Coenzyme for coagulation factors

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4
Q

signaling function of calcium

A

intracellular second messengers

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5
Q

The calcium levels are affected by pH level. What happens to its levels when you experience acidosis and alkalosis

A

acidosis: hypercalcemia
alkalosis: hypocalcemia
inversely proprtional

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6
Q

hormones that regulate calcium level

A

PTH
Calcitriol or activated vitamin D3
Calcitonin

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7
Q

what are the inhibitors of PTH

A

Hypercalcemia
Calcitriol

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8
Q

what is released to compensate the fall of ionized calcium (free) in pasma

A

PTH

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9
Q

what hormone for for Ca regulation is pro blood

A

PTH

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10
Q

what hormone for Ca regulation is pro bone

A

calcitonin

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11
Q

true or false: calcitriol is inhibited by increase of PTH and decreased phosphate

A

false. it is stimulated by increased PTH and decreased phosphate. it is inhibited by decreased PTH and increased phosphate

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12
Q

what produces calcitonin

A

C-cells (parafollicular) of the thyroid gland

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13
Q

what is the result of the release of calcitonin

A

inhibits bone resorption = decreased Ca levels

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14
Q

it is also called as the hypocalcemic bone

A

calcitonin

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15
Q

what are the main functions of calcitriol or activated vit D3

A

stimulation of bone resorption
stimulation of Ca and PO4 absorption in the gut

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16
Q

what are the measurements of calcium

A

ISE, AAS, EFP
Precipitation of Ca
Formation of colored complexes
Removal of Ca

17
Q

what are the components of O-cresolphthalein and its functions

A

8-hydroxyquinoline- bind to Mg
Urea- reduce turbidity
Ethanol- decrease the absorbance of blank

18
Q

what is considered the second reference method for Ca

A

Atomic Absorption Spectrophometry