Sorted By Test Name - Mayo Medical Laboratories

FFTEN
57102
THCU
8898
Reference Values:
Class IgE kU/L Interpretation
0 Negative
1 0.35-0.69 Equivocal
2 0.70-3.49 Positive
3 3.50-17.4 Positive
4 17.5-49.9 Strongly positive
5 50.0-99.9 Strongly positive
6 > or =100 Strongly positive Reference values
apply to all ages.
Clinical References: Homburger HA: Allergic diseases. In Clinical Diagnosis and Management by
Laboratory Methods. 21st edition. Edited by RA McPherson, MR Pincus. New York, WB Saunders
Company, 2007, Chapter 53, Part VI, pp 961-971
Tetrahydrobiopterin & Neopterin Profile (BH4, N)
Reference Values:
Tetrahydrobiopterin/Neopterin Profile
Age BH4 Neop
(years) (nmol/L) (nmol/L)
0 – 0.2 40 – 105 7– 65
0.2 – 0.5 23 – 98 7 – 65
0.5 – 2.0 18 – 58 7 – 65
2.0 – 5.0 18 – 50 7 – 65
5.0 – 10 9 – 40 7 – 40
10 – 15 9 – 32 8 – 33
Adults 10 – 30 8 – 28
Note: If test results are inconsistent with the clinical presentation, please call our laboratory to discuss
the case and/or submit a second sample for confirmatory testing.
An important consideration for false positive or false negative results is the improper labeling of the
patient sample.
Test Performed by: Medical Neurogenetics Lab
5424 Glenridge Drive NE
Atlanta, GA 30342
Tetrahydrocannabinol (THC) Confirmation, Urine
Clinical Information: Delta-9-tetrahydrocannabinol is the active agent of the popularly abused street
drug, marijuana. Following consumption of the drug, either by inhalation or ingestion, it is metabolized to
a variety of inactive chemicals, 1 of them being delta-9-tetrahydrocannabinol carboxylic acid. The
immunochemical procedure used to screen for tetrahydrocannabinol (THC) as part of #8248 "Drug Abuse
Survey, Urine" is designed to cross-react with THC carboxylic acid. In almost all medico-legal cases and
in screening of employees, or when the patient adamantly denies THC use and the immunochemical test is
positive, confirmation of the result by gas chromatography-mass spectrometry (GC-MS) and EIA are
required.
Useful For: Detection and confirmation of drug abuse involving delta-9-tetrahydrocannabinol
Current as of January 4, 2013 7:15 pm CST 800-533-1710 or 507-266-5700 or MayoMedicalLaboratories.com Page 1716