Magnesium, Stool
Test Mnemonic
STMAG
CPT Codes
- 83735 - QTY (1)
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 5 mg | Stool | Clean container | Refrigerated | Refrigerated | Stool may be from random or well mixed 24 hour collection. Stool must be liquid. Do not add saline or water. Indicate total collection time and weight. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 g |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 1 hour |
| Refrigerated | 1 week |
| Frozen | 1 month |
Days Performed
Sun - Sat
Turnaround Time
3 - 4 days
Methodology
| Name | Description |
|---|---|
| Spectrophotometry (S) |
Reference Range
| Fecal Magnesium mg/d | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | 0 - 355 | mg/d | |||
| Fecal Magnesium mg/dL | |||||
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | 0 - 110 | mg/dL |
Special Info
Do not add saline or water to liquify specimen. Formed or viscous stools are not acceptable. Indicate total collection time and weight.
Clinical Info
Evaluation of laxative abuse