Creatine Kinase Flashcards

1
Q

MW

A

82,000 D

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2
Q

Class of enzyme

A

Transferase

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3
Q

Associated with

A

ATP regeneration

Transport system

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4
Q

Transfase of phosphate group PO4

A

Kinase

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5
Q

Ami

A

Acute myocardial infarction

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6
Q

Cns shock

A

Sepsis

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7
Q

High concentration in

A

Skeletal muscle
Heart muscle
Brain tissue

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8
Q

Sensitive indicator for

A

Ami

Md-duchenne type

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9
Q

Also seen in CNS disorder such as

A

Stroke, nerve degeneration, seizures, cns shock

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10
Q

2 subunits

A

H and M

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11
Q

Isoenzymes

A

Ck bb-brain type
Ck mb- hybrid type
Ck mm- muscle type

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12
Q

Fastest iso

A

Ck bb

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13
Q

Slowest iso

A

Ck mm

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14
Q

Most predominant iso in healthy individuals

A

Ck mm

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15
Q

Ck mm found in

A

Striated muscle and normal serum

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16
Q

Heart muscle activity mostly

A

80% ck mm

20% ck mb

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17
Q

Hypothyroidism

A

Ck mm

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18
Q

High conc in brain

A

Ck bb

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19
Q

Seen in cns, git, uterus

A

Ck bb

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20
Q

Pregnancy

A

Ck bb

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21
Q

Ck bb used to detect

A

Cns damage
Childbirth
Tumor

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22
Q

Hypothyroidism result to ck mm decrease or elevate?

A

Elevate

23
Q

Ck mb not increase

A

Angina pectoris

24
Q

Bedridden patients increase or decrease ck activity

A

Decrease

25
Q

Major iso

A

Ck mm

26
Q

If patient undergone a vaccination and submit herself for a ck test, what could be the results?

A

Elevate

27
Q

Increase within what range of hrs

A

4-8 hrs

28
Q

Peak time

A

12-24 hrs

29
Q

Return to normal in

A

48-72 hrs

30
Q

Used as more sensitive and specific marker for myocardial damage

A

Troponin I and T

31
Q

2 atypical forms

A

Macro ck

Mitochondrial c

32
Q

Appears in severe illness

A

Mitochondrial c

33
Q

Appears in age and gender

A

Macro ck

34
Q

Reference method for ck

A

Electrophoresis

35
Q

More sensitive and precise than electrophoresis

A

Ion exchange chromatography

36
Q

Enzyme released by rbc

A

Adenylate kinase

37
Q

Used to inhibit ak in hemolyzed sample

A

Amp

38
Q

Do not have ck

A

Liver cells

Rbc

39
Q

Most anodal and labile

A

Ck bb

40
Q

Least anodal

A

Ck mm

41
Q

Potent inhibitors

A

Urate

Cysteine

42
Q

Buffer

A

Imidazole

43
Q

Assays

A

Tanzer gilbarg

Oliver rosalki

44
Q

Forward rxn ph

A

9

45
Q

Reverse rxn ph

A

6.8

46
Q

Most commonly performed method in ck

A

Oliver rosalki

47
Q

Does hemolysis elevate or decrease ck?

A

Elevate

48
Q

Serum is inactivated by

A

Light and ph

49
Q

Serum should be kept at

A

Dark place

50
Q

Restores lost ck activity

A

Cleland reagent

Glutathione

51
Q

Stored in

A

4c (7days)

-20 (1 month)

52
Q

Reference range in male and female

A

M: 46-171 U/L
F: 34-145 U/L

53
Q

It is added to reverse reverse method to inhibit ak

A

Adenosine monophosphate

54
Q

Expression of the percentage of total ck

A

Ck relative index