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Clinical Chemistry > Calcium And Phosphorus > Flashcards

Calcium And Phosphorus Flashcards

1
Q

Involved in what blood coagulation

A

Coagulation factor 4

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2
Q

Calcium is absorbed in what part of intestine

A

Duodenum

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3
Q

Reference value in total calcium adult and child

A

8.6-10mg/dl and 8.8-10 mg/dl

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4
Q

Reference value in ionized calcium adult and child

A

4.6-5.3mg/dl and 4.8-5.5mg/dl

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5
Q

Three forms of calcium

A

Ionized, carboxylated, bound to albumin

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6
Q

Sensitized and specific marker for calcium disorder

A

Ionized/free form

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7
Q

Vitamin D, increases intestinal absorption of calcium

A

1,25 dihydroxycholecaciferol

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8
Q

Increase reabsorption in the kidneys, increase mobilization of calcium from bones

A

1,25 dihydroxycholecaciferol

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9
Q

Conserve calcium by increasing reabsorption in the kidneys

A

Pth

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10
Q

Increase the level by mobilizing bone calcium

A

Pth

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11
Q

It activates the process of bone resorption

A

Pth

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12
Q

It suppress urinary loss of calcium

A

Pth

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13
Q

It stimulates the cobversion of inactive vit D to activate vit D3 in the kidneys

A

Pth

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14
Q

A thyroid hormone secreted by what

A

Parafollicular cells of the thyroid gland

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15
Q

A thyroid hormone secreted by parafollicular cells

A

Calcitonin

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16
Q

It inhibits pth and vit d3

A

Hypocalcemic hormone

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17
Q

Calcium deposition

A

Calcitonin

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18
Q

It inhibits bone resorption

A

Calcitonin

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19
Q

It promites urinary excretion of calcium

A

Calcitonin

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20
Q

Decrease in plasma conc will result in

A

Decrease to calcium

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21
Q

Decrease ca is a cause of

A

Recumbent posture

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22
Q

Is the major net loss of calcium

A

Urinary excretion

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23
Q

Decreases calcium level

A

Venous occlusion

24
Q

Ionized calcium is decreased in what stage

A

Secondary hyperparathyroidism

25
Q

It promotes leaching of ca from bones and elevation of what ions

A

Acidosis, hydrogen ion

26
Q

Promotes deposition of calcium in bones

A

Alkalosis

27
Q

Reference method for calcium

A

Atomic absorption spectro

28
Q

Indication of aas in calcium

A

Metallochromic

29
Q

Example of AAS in calcium

A

Arzeno orthocresophthalein complex

30
Q

Method based on redox reaction

A

Clark and collin

31
Q

Method only measures ionized form

A

Ion selective electron

32
Q

Important constituent of nucleic acid, phospholipids

A

Phosphorus

33
Q

Plays important role from muscle urologic fxns electron transport, oxygen carrying capacity of hb

A

Phosphorus

34
Q

Phosphorus absorbed in what intestine

A

Jejunum

35
Q

It decreases phosphate by renal excretion

A

Pth

36
Q

Phosphate inhibit bone resoption

A

Calcitonin

37
Q

Increases phosphate and renal absorption

A

Growth hormone

38
Q

Reference value in phosphorus in adult

A

2.7-4.5mgdl 4.5-5.5 child

39
Q

Phosphorus requires

A

Insulin

40
Q

Decrease phosphorus leads to

A

Atp depletion

41
Q

Increase serum phosphorus

A

Serum calcium to diminish

42
Q

Severe hypophossphalemia

A
43
Q

What phosphate measured in clinical lab

A

Inorganic phosphate

44
Q

Blood collection is affected by

A

Circadian rhythm

45
Q

Fasting serum phosphate is controlled by

A

Parathyroid gland

46
Q

Most accurate measurement of inorganic phosphorus in serum

A

Unreduced phosphomolybdate formation

47
Q

Fiske subbarow method

A

Ammonium molybdate method

48
Q

Reducing agent in fiske subarrow method

A

Pictol (amino naphtol sulfonic acid)

49
Q

Elon

A

Methylamino phenol

50
Q

Senidine

A

N phenyl phenylene diamine hydrochloride

51
Q

End product

A

Phosphomolydenum blue

52
Q

Fifth most common element

A

Calcium

53
Q

It is decreased in secondary hyperparathyroidism

A

Ionized calcium

54
Q

Acidosis promotes what of calcium from bones

A

Leaching

55
Q

Alkalosis promotes whT if calcium in bones

A

Alkalosis

56
Q

It is increased in hypercalcemia ass malignancy

A

Parathyroid hormone related protein

57
Q

This elevated serum albumin resulting in falsely elevated total serum calcium

A

Dehydration or hemoconcentration

Clinical Chemistry (6 decks)

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