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Beaumont Laboratory

Manganese, Whole Blood

ARUP #99272, EPIC: LAB6298, SOFT: XMNGB

Instructions

Diet, medication, and nutritional supplements may introduce interfering substances. Patient should be encouraged to discontinue nutritional supplements, vitamins, minerals, and non-essential over-the-counter medications (upon the advice of their physician).

Specimen Collection Criteria

Collect: One Royal Blue-top EDTA tube. (Min: 1.0 mL)

Physician Office/Drawsite Specimen Preparation

Do not centrifuge or freeze. Maintain whole blood at room temperature (20-26°C or 68-78.8°F) prior to transport.

Preparation for Courier Transport

Transport: 7.0 mL whole blood, at room temperature (20-26°C or 68-78.8°F). (Min: 1.0 mL)

Rejection Criteria

  • Clotted specimens.
  • Frozen specimens.
  • Specimens not collected or processed as indicated.

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): Indefinite
Refrigerated (2-8°C or 36-46°F): Indefinite
Frozen (-20°C/-4°F or below): Unacceptable

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.

Laboratory

Sent to ARUP Laboratories, Salt Lake City, UT.

Performed

Tuesday, Friday.
Results available in 2-6 days.

Reference Range

4.2-16.5 mcg/L.

Test Methodology

Quantitative Inductively Coupled Plasma/Mass Spectrometry.

Interpretation

  • Increased manganese levels are seen in acute hepatitis and myocardial infarction.
  • Decreased levels are seen in seizure disorders, maple syrup urine disease, phenylketonuria, and in certain patients with bone and joint malformations. A true deficiency state (due to decreased intake) has not been described for manganese.
  • Toxicity results primarily from inhalation of particulate material containing high levels of manganese. Manganese toxicity occurs in miners, foundry workers, welders, pharmaceutical workers, pottery and ceramics makers, varnish manufacturers, and in makers of food additives.
  • Elevated results from noncertified trace element-free collection tubes may be due to contamination. Elevated concentrations of trace elements in blood should be confirmed with a second specimen collected in a tube designed for trace element determinations, such as a royal blue, Na2EDTA tube.

Clinical Utility

This assay is used to detect toxic manganese exposure, especially neurological syndromes and movement disorders. It is also used to follow manganese therapy in parenteral nutrition especially in patients with liver disease or that have excessive gastrointestinal losses.

CPT Code

83785.

Test Codes

ARUP #99272, EPIC: LAB6298, SOFT: XMNGB

Last Updated

12/12/2016

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This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.