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Lab Test Dictionary

Telomere Length Measurement

Methodology

Flow Cytomoetry; FISH

Specimen Type

Whole Blood

Performing Lab

Johns Hopkins Genomics-Molecular Diagnostics

Epic ID

LAB08996

Lab Test Days

Monday-Friday

Standard TAT

14-21 Days

Collection Information

Specimen Required

(Two-Three) 8.5 mL Whole Blood collected in an ACD Solution A (yellow-top) tube (Preferred)

Container Type

Yellow (ACD), Soultion A

Collection Instructions

Collect Monday-Thursday 0800-1300 only, no weekend or holiday. Blood collected in an ACD Solution (yellow-top) tubes needs to be filled with the exact volume of 8.5 mL in each tube. For infants and children collected at least 3 mL Whole blood in and EDTA (lavender-top) tube.

Processing Information - Lab Use Only

Transport Temperature

Ambient-Only

Specimen Stability

Room Temp: 48 Hours (24 Hours for EDTA Whole Blood); Refrigerated: Unacceptable; Frozen: Unacceptable

Test Volume Required

18 mL Whole Blood

Minimum Test Volume

12 mL Whole Blood (3 mL Whole Blood for infants and children)

Processing Instructions

Submit completed Johns Hopkins Molecular Diagnostics requisition with specimen room temp the same day as collected Monday-Thursday only, no weekends or holidays.

Comments

Insurance authorization required prior to draw for outpatients. Ok to send on inpatients.