SODIUM

Question 1

SODIUM

Filtrate Rgt (brown)

BLANK
STANDARD
PATIENT

Answer 1

1000 uL or 1 mL

Question 2

SODIUM

Serum sample

Answer 2

50 uL

Question 3

SODIUM

Distilled H2O

Answer 3

50 uL

Question 4

SODIUM

Standard (white)

Answer 4

50 uL

Question 5

SODIUM

Shake

Answer 5

3 mins

Question 6

SODIUM

Centrifuge

Answer 6

1500g for 10 mins

Question 7

SODIUM

Acid Rgt (brown)

BLANK
STANDARD
PATIENT

Answer 7

1000 uL or 1 mL

Question 8

SODIUM

Supernatant (fluid)

Answer 8

50 uL

Question 9

SODIUM

Color reagent (small, brown)

Answer 9

50 uL

Question 10

SODIUM

Spectro

Answer 10

550 nm

Question 11

SODIUM

Formula

Question 12

SODIUM Principle

Answer 12

Colorimetric Method Based on the Modification of Maruna and Trinder

Question 13

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.

Answer 13

triple salt, sodium magnesium uranyl acetate

uranium

ferrocyanide

Question 14

SODIUM

Reagent Deterioration:
may be a sign of contamination.

Answer 14

Turbidity

Question 15

SODIUM

Store all reagent set at

Answer 15

room temperature.

Question 16

SODIUM

is the serum of choice.

Answer 16

Freshly drawn serum

Question 17

SODIUM

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

Answer 17

lithium, calcium, magnesium or heparin,
EDTA

Question 18

Sodium is stable for at least

Answer 18

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

Question 19

SODIUM

Expected Values

Answer 19

135 – 155 mEq/L