Test Catalog

Test ID: VLTB    
Volatile Screen, Blood

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

This test includes analysis of methanol, ethanol, isopropanol, and acetone.

Specimen Type Describes the specimen type validated for testing

Whole blood

Advisory Information

This test is not performed using chain of custody. For chain of custody testing order VLTBX / Volatile Screen, Chain of Custody, Blood.

Additional Testing Requirements

Ethylene glycol requires a separate request. See ETGL / Ethylene Glycol, Serum.

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing


Preferred: Grey top (potassium oxalate/sodium fluoride)

Acceptable: Any anticoagulant

Specimen Volume: 1 mL

Collection Instructions: Do not use alcohol to clean arm. Use alternatives such as Betadine to cleanse arm before collecting any specimen for volatile testing.

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

0.5 mL or amount to fill 1 tube

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Gross hemolysis OK
Gross lipemia Reject
Gross icterus OK

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTimeSpecial Container
Whole bloodRefrigerated (preferred)14 days
 Frozen 28 days
 Ambient 24 hours