Phosphorus
| Label Mnemonic: | PO4 |
| Epic code: | LAB113 |
| Downtime form: | A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Chemistry
6240 RCP
356-3527
6240 RCP
356-3527
Specimen(s):
Plasma
Collection Medium:
 |
| Plasma Separator Tube 4.5 mL |
Alternate
Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
3 mL whole blood from light green top tube or ONE
Microtainer® for pediatric patients.
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
1 hour (upon receipt in laboratory)
Reference Range:
Reference ranges based on package insert (Roche Diagnostics PHOS2 ver. 2) Age Male (mg/dL) Female (mg/dL) 0-30 days 3.9-6.9 4.3-7.7 1-12 months 3.5-6.6 3.7-6.5 1-3 years 3.1-6.0 3.4-6.0 4-6 3.3-5.6 3.2-5.5 7-9 3.0-5.4 3.1-5.5 10-12 3.2-5.7 3.3-5.3 13-15 2.9-5.1 2.8-4.8 16-18 2.7-4.9 2.5-4.8 >18 2.5-4.5 2.5-4.5 Reference ranges updated 10/13/2015.
Comments:
Refer to BD Microtainer® Tubes product sheet for detailed sample collection
instructions.
This test is also performed in the Iowa River Landing (IRL) clinical laboratory (for specimens drawn at that site).
This test is also performed in the Iowa River Landing (IRL) clinical laboratory (for specimens drawn at that site).
Test
Limitations:
Criterion: Recovery within plus or minus 10% of initial value. Plasma Icterus: No significant interference up to an I index of 60. Hemolysis: Significant positive interference at an H index greater than 300 (approximate hemoglobin concentration: 300 mg/dL). NOTE: This interference results from inorganic phosphates produced by the action of phosphatases on organic phosphates, both of which are released from the red cell upon hemolysis (2). Lipemia (Intralipid): No significant interference up to an L index of 800. There is poor correlation between turbidity and triglycerides concentration. Drugs: No interference was found at therapeutic concentrations using common drug panels.
Methodology:
Molybdate UV
CPT Code:
84100