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Lab Test Dictionary

Very Long Chain Fatty Acids


VLCFA; Phytanic Acid

Specimen Type

Plasma or Whole Blood

Performing Lab

Kennedy Krieger Peroxisomal Diseases (KKI)

Epic ID

Other Reference Test

Lab Test Days

3x a Week

Standard TAT

10-15 Days

Collection Information

Specimen Required

2-3 mL Blood or 1-3 mL Whole Blood

Container Type

Lavender (EDTA)

Collection Instructions

Collect fasting or preprandial specimen.

Processing Information - Lab Use Only

Test Volume Required

1.5 mL Plasma or 3 mL Whole Blood

Minimum Test Volume

1 mL Plasma or Whole Blood

Processing Instructions

Complete a Kennedy Krieger Peroxisomal Diseases requisition and submit with whole blood room temp or plasma frozen Monday-Thursday only, no weekends or holidays.

Included Tests

Includes Phytanic Acid


Screening for peroxisomal disorders. Ok to send on outpatients and inpatients.

CPT Codes