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Feb 5, 2018

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100

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Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Chemistry

Magnesium

Magnesium (MAG) Chemistry Lab Test

Name: Magnesium

Test Name: Magnesium

Health Link Test Code: MAG

LIS Test Code: MG

CPT Code(s): 83735

Methodology: Arsenazo

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: 1 hour.

Specimen: Blood

Collection Container: Green cap with yellow ring (PST)

Also Acceptable: Green top, Red cap with yellow ring (SST), Red top

Collection Volume: 1 mL

Pediatric Collection Volume: 0.4 mL

Stability Ambient:

7 days

Stability Refridgerated:

7 days

Stability Frozen:

1 year

Sample Analyzed: Plasma or serum

Testing Volume: 0.5 mL

Pediatric Testing Volume: 0.2 mL

Specimen Processing:

Centrifuge. If a complete barrier has not formed, transfer cell-free plasma/serum to plastic vial. Refrigerate.

Specimen Transport:

Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.

Interpretation:

Age: mg/dL
5 months-5 years 1.7-2.3
6-11 years 1.7-2.1
12-20 years 1.7-2.2
21 years and up 1.6-2.6

Interpretation Type: Reference Interval

Critical Calls: yes