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Test Code LAB2060 Fractional Sodium Excretion

Collection:

Specimen: Blood & Urine

Container:

Blood – Green Lithium Heparin with gel (preferred), Serum Separator or Plain Red

Urine - 10 mL yellow top plastic urine no additive tube

Volume:

Blood -5 mL; Minimum 1 mL

Urine – 10 mL; Minimum 2 mL

Stability:

Once serum/plasma is separated from cells, specimen is stable 8 hours room temp,1 week refrigerated or 2 weeks frozen. Urine is stable for 8 hours room temp,1 week refrigerated or 2 weeks frozen.

Turn Around Time (TAT):

Routine – 3 hours

Test Availability:

24 hours a day / 7 days a week

Request Form:

Routine/Stat Laboratory Request Form

Reference Interval:

< 1 %

Additional Test Codes

NA FX

Performing Laboratory Section

Chemistry / UMC MAIN LABORATORY