SODIUM Flashcards

1
Q

SODIUM

Filtrate Rgt (brown)

BLANK
STANDARD
PATIENT

A

1000 uL or 1 mL

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2
Q

SODIUM

Serum sample

A

50 uL

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3
Q

SODIUM

Distilled H2O

A

50 uL

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4
Q

SODIUM

Standard (white)

A

50 uL

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5
Q

SODIUM

Shake

A

3 mins

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6
Q

SODIUM

Centrifuge

A

1500g for 10 mins

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7
Q

SODIUM

Acid Rgt (brown)

BLANK
STANDARD
PATIENT

A

1000 uL or 1 mL

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8
Q

SODIUM

Supernatant (fluid)

A

50 uL

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9
Q

SODIUM

Color reagent (small, brown)

A

50 uL

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10
Q

SODIUM

Spectro

A

550 nm

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11
Q

SODIUM

Formula

A
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12
Q

SODIUM Principle

A

Colorimetric Method Based on the Modification of Maruna and Trinder

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13
Q

Sodium is precipitated as the (?), with the excess (?) then being reacted with (?), producing a chromophore whose absorbance varies inversely as the concentration of sodium in the test specimen.

A

triple salt, sodium magnesium uranyl acetate

uranium

ferrocyanide

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14
Q

SODIUM

Reagent Deterioration:
may be a sign of contamination.

A

Turbidity

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15
Q

SODIUM

Store all reagent set at

A

room temperature.

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16
Q

SODIUM

is the serum of choice.

A

Freshly drawn serum

17
Q

SODIUM

Plasma from non-sodium containing anticoagulant (e.g.,?) is an acceptable alternative.

A

lithium, calcium, magnesium or heparin,
EDTA

18
Q

Sodium is stable for at least

A

24 hours at room temperature and for 2 weeks when refrigerated.

19
Q

SODIUM

Expected Values

A

135 – 155 mEq/L