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Valproic Acid, Plasma or Serum

Performing Laboratory

Providence Alaska Medical Center

Methodology

EMIT

Specimen Requirements

Submit only 1 of the following specimens:

 

Preferred:

Plasma

Draw blood in a light green-top (lithium heparin gel) tube(s). Spin down, separate plasma from cells, and send 1 mL (minimum volume:  0.3 mL) of lithium heparin plasma refrigerated.

Note:  1. Specimen is stable for 48 hours refrigerated.

2. Indicate plasma on request form.

3. Label specimen appropriately (plasma).

 

Alternate:

Serum

Draw blood in a gold-top serum gel tube(s). Spin down, separate serum from cells, and send 1 mL (minimum volume:  0.3 mL) of serum refrigerated.

Note:  1. Specimen is stable for 48 hours refrigerated.

2. Indicate serum on request form.

3. Label specimen appropriately (serum).

Reference Values

50-100 µg/mL

Critical value (laboratory will call results):  >150 µg/mL

Stability

Room temp: 8 hours

Refrigerated: 4 days

Frozen: 2 months

Day(s) Test Set Up

Monday through Sunday

Available STAT

Test Classification and CPT Coding

80164