Magnesium
| Abbrev Code: | MG | ||
| Order Code: | LAB103 | Order Name: | Magnesium |
| Methodology: | Roche: Colorimetric endpoint
Vista: Bichromatic endpoint Woodwinds: Enzymatic |
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| CPT Codes: | 83735 x1, 83735 x1 | ||
| Turnaround Time: | Performed and reported 24 hours/day. | ||
| Associated Links: | |||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2.5 mL |
| Minimum\Peds Volume: | 0.6 mL |
| Collection Instructions: | Chemistry Tests Containers Chart |
Processing and Shipping
| Specimen Processing: | Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. |
| Stability: | Roche: 7 days refrigerated; 1 year frozen.
Vista: 7 days at room temperature; 7 days refrigerated; 1 year frozen. |
| Test Performed at or Referral Lab | Chemistry (CSC Maple Grove, Roche-CSC Mpls, Roche-Grand Itasca, Roche-Lakes, Roche-Northland, Roche-Range, Roche-Ridges, Roche-Southdale, Roche-St. John's, Roche-UMMC East, Roche-UMMC West, Woodwinds) |
Interpretive
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| Use: | Hypomagnesemia, seen in malabsorption, pancreatitis, hypoparathyroidism, chronic alcoholism and DT's, chronic glomerulonephritis, aldosteronism, digoxin toxicity, protracted IV feedings and chlorothiazide therapy. Hypocalcemia refractory to treatment may occur if there is underlying hypomagnesemia. Hypermagnesemia is seen in dehydration, severe diabetic acidosis, Addison's disease, uremia, and iatrogenic MgSO4 therapy in obstetric patients with preeclampsia. |
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