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Mayo Test Catalog, (Sorted By Test Name) - Mayo Medical ...

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TLRU<br />

60324<br />

TLCRU<br />

60325<br />

FFTHC<br />

90094<br />

Clinical References: 1. Pelcloval D, Urbanl, P, Ridsonl P, et. al. Two-year follow-up of two patients<br />

after severe thallium intoxication. Human & Experimental Toxicology 2009;28:263–272 2. Zhao G,<br />

Ding M, Zhang B, et. Al. Clinical Manifestations and Management of Acute Thallium Poisoning. Eur<br />

Neurol 2008;60:292–297<br />

Thallium, Random, Urine<br />

Clinical Information: Thallium is found in some depilatories and rodenticides. Accidental ingestion<br />

may lead to vomiting, diarrhea, and leg pains followed by a severe and sometimes fatal sensorimotor<br />

polyneuropathy and renal failure. Alopecia (hair loss) may occur 3 weeks after poisoning. The fatal dose<br />

is approximately 1 g.<br />

Useful For: Detecting toxic thallium exposure<br />

Interpretation: Normal daily output is 10<br />

mcg/day. The long-term consequences of such an exposure are poor.<br />

Reference Values:<br />

0-1 mcg/L<br />

Reference values apply to all ages.<br />

Clinical References: 1. Bank WJ, Pleasure DE, Suzuki K, et al: Thallium poisoning. Arch Neurol<br />

1972;26:456-464 2. Pelclova D, Urban P, Ridson P, et al: Two-year follow-up of two patients after severe<br />

thallium intoxication. Hum Exp Toxicol. 2009 May;28(5):263-272 3. Zhao G, Ding M, Zhang B, et al:<br />

Clinical manifestations and management of acute thallium poisoning. Eur Neurol 2008;60(6):292-297<br />

Thallium/Creatinine Ratio, Random, Urine<br />

Clinical Information: Thallium is found in some depilatories and rodenticides. Accidental ingestion<br />

may lead to vomiting, diarrhea, and leg pains followed by a severe and sometimes fatal sensorimotor<br />

polyneuropathy. Alopecia (hair loss) may occur 3 weeks after poisoning. The fatal dose is approximately<br />

1 gram.<br />

Useful For: Detecting toxic thallium exposure<br />

Interpretation: Patients exposed to high doses of thallium (>1 g) present with alopecia, peripheral<br />

neuropathy and seizures, and renal failure. Normal daily output is 10 mcg/day. The long-term consequences of such an exposure are poor.<br />

Reference Values:<br />

0-1 mcg/g Creatinine<br />

Reference values apply to all ages.<br />

Clinical References: 1. Bank WJ, Pleasure DE, Suzuki K, et al: Thallium poisoning. Arch Neurol<br />

1972;26:456-464 2. Pelclova D, Urban P, Ridson P, et al: Two-year follow-up of two patients after severe<br />

thallium intoxication. Hum Exp Toxicol. 2009 May;28(5):263-272 3. Zhao G, Ding M, Zhang B, et al:<br />

Clinical manifestations and management of acute thallium poisoning. Eur Neurol 2008;60(6):292-297<br />

THC (Tetrahydrocannabinol) and Carboxy Confirmation, Serum<br />

Reference Values:<br />

This specimen was handled by Medtox Laboratories as a<br />

forensic specimen under chain of custody protocol.<br />

Compound identification for positive specimens is performed by<br />

GC/MS.<br />

<strong>Test</strong> Performed by: Medtox Laboratories, Inc.<br />

Current as of January 3, 2013 2:22 pm CST 800-533-1710 or 507-266-5700 or <strong>Mayo</strong><strong>Medical</strong>Laboratories.com Page 1732

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