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Clinical Chemistry > LABORATORY MATHEMATICS > Flashcards

LABORATORY MATHEMATICS Flashcards

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1
Q

Most common type of solution prepared in clinical laboratory
Refers to the number of grams of solute per 100 mL of solution

A

Weight/Volume (w/v) % solutions

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2
Q

Formula for w/v%

A

w/v% = [weight of solute (g)/ volume of solution (mL)] x 100

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3
Q

Used when both solute and solvents are liquid
Refers to the amount of solute in mL in 100 mL of solvent

A

Volume/Volume (v/v)% solutions

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4
Q

Formula of (v/v)%

A

v/v% = [volume of solute (mL)/ volume of solution (mL)] x 100

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5
Q

Number of grams of solute per 100 grams of solution

A

Weight/Weight (w/w)% solutions

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6
Q

Formula of w/w%

A

w/w% = [(mass of solute in g/ mass of solution in g)] x 100

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7
Q

Number of moles of solute per liter of solution

A

Molarity

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8
Q

Formula of Molarity

A

M = moles of solute (mol)/ Liters of solution (L)

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9
Q

To prepare a molar solution

A

Grams of solute = Molarity x GMW of the solute x Volume (L)

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10
Q

To convert %w/v to Molarity

A

M = %w/v x 10 /GMW

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11
Q

Number of equivalent weight of solute per liter of solution
Often been used in acid-base calculations

A

Normality = Grams of solute/ EW x Volume (L)

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12
Q

Formula of Equivalent Weight

A

EW = MW/valence

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13
Q

To prepare a normal solution of Solids

A

Grams of solute = EW x Normality x Volime (L)

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14
Q

To convert %w/v to Normality (N)

A

N = %w/v x 10 / EW

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15
Q

Formula of Normality

A

Normality = Molarity x Valence

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16
Q

Formula of Molarity from Normality

A

Molarity = Normality

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17
Q

Amount of solute per 1 kilogram of solvent
Expressed in terms of weight/weight or moles per kilogram

A

Molality

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18
Q

Formula of Molality

A

Molality = grams of solute/ MW x kg of solvent

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19
Q

Formula of Mean

A

Mean = Sum of All Data Points/ Numberof Data Points

20
Q

Formula of SD

A

SD = sqrt.// (Sum of ((Xi - Mean)) squared / Number of Values in data set//

21
Q

Dilution Formula

A

Dilution = Volume of solute/ Volume of solution

22
Q

Temperature Conversion
C to K

A

C + 273

23
Q

Temperature Conversion
C to F

A

(C x 1.8) + 32

24
Q

Temperature Conversion
F to C

A

(F - 32) x 0.556

25
Q

Conversion Factor:
Albumin

A

10

26
Q

Conversion Factor:
Ammonia

A

0.587

27
Q

Conversion Factor:
Bicarbonate

A

1.0

28
Q

Conversion Factor:
Bilirubin

A

17.1

29
Q

Conversion Factor:
BUN

A

0.357

30
Q

Conversion Factor:
Calcium

A

0.25

31
Q

Conversion Factor:
Chloride

A

1.0

32
Q

Conversion Factor:
Cholesterol

A

0.026

33
Q

Conversion Factor:
Creatinine

A

88.4

34
Q

Conversion Factor:
Glucose

A

0.0555

35
Q

Conversion Factor:
Iron

A

0.179

36
Q

Conversion Factor:
Lithium

A

1.0

37
Q

Conversion Factor:
Magnesium

A

0.5

38
Q

Conversion Factor:
Phospholipid

A

0.01

39
Q

Conversion Factor:
Phosphorus

A

0.323

40
Q

Conversion Factor:
Potassium

A

1.0

41
Q

Conversion Factor:
Sodium

A

1.0

42
Q

Conversion Factor:
Thyroxin

A

12.9

43
Q

Conversion Factor:
Total Protein

A

10

44
Q

Conversion Factor:
Triglyceride

A

0.0113

45
Q

Conversion Factor:
Uric Acid

A

0.0595

46
Q

Conversion Factor:
pCO2

A

0.133

47
Q

Conversion Factor:
pO2

A

0.133

Clinical Chemistry (16 decks)

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