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Lab Test Dictionary

Tripeptidyl Peptidase 1 (TPP1) and Palmitoyl-Protein Thioesterase 1 (PPT1), Leukocytes (TPPTL)

Methodology

Fluorometric


Synonyms

CLN1; CLN2; INCL; LINCL; NCL1; NCL2; Palmitolyl-Protein Thioesterase 1 (PPT1); TPP1 (Tripeptidyl Peptidase 1) NCL (Neuronal Ceroid Lipofuscinosis) Batten disease

Specimen Type

Whole Blood

Performing Lab

Mayo Medical Lab


Epic ID

Other Reference Test

Lab Test Days

Friday; A.M.

Standard TAT

8-15 Days


Collection Information

Specimen Required

5-6 mL Whole Blood collected in an ACD Solution B (yellow-top) tube is preferred

Container Type

Yellow (ACD), Solution B

Collection Instructions

Whole blood collected in an ACD Solution A (yellow-top) tube is also acceptable. Collect Monday-Thursday ONLY, no weekends or holidays.


Processing Information - Lab Use Only

Transport Temperature

Refrigerate-Only

Specimen Stability

Room Temp: 72 Hours; Refrigerated: 6 Days; Frozen: Unacceptable

Rejection Criteria

Gross hemolysis

Test Volume Required

6 mL Whole Blood

Minimum Test Volume

5 mL Whole Blood


Comments

No authorization required. Ok to send on inpatients and outpatients.


CPT Codes

82657


Revised

03-08-17

Initials

SL