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Phosphorus
Test CodeLAB113
Alias/See Also
1231100227
CPT Codes
84100
Includes
PHOSPHORUS
Preferred Specimen
Green Lithium Heparin tube (Gel separator preferred)
Minimum Volume
0.5 mL plasma
Instructions
CLINIC COLLECTIONS: Collect 0.5 mL plasma in Green Lithium Heparin tube (Gel separator preferred). Must be spun within 2 hours after collection. If no gel separator, plasma must be pulled off cells within 2 hours.
If collecting with AST, ALT, VD25, K+, or LDH, label routes to Gold/SST. Collect 1.0 mL of serum in Gold/SST. Must be spun within 2 hours after collection.
If collecting with AST, ALT, VD25, K+, or LDH, label routes to Gold/SST. Collect 1.0 mL of serum in Gold/SST. Must be spun within 2 hours after collection.
Transport Temperature
Refrigerated
Specimen Stability
Room temperature (20 to 25°C): 24 hours
Refrigerated (2 to 8°C): 3 days
Freezer (-20°C): 30 days
Methodology
Abbott Alinity
Reference Range
Males/Females
0-6 Days: 4.80-8.20 mg/dL
6-365 Days: 4.30-7.40 mg/dL
1-4 Years: 4.10-5.40 mg/dL
4-7 Years: 3.70-5.60 mg/dL
7-12 Years 3.30-5.40 mg/dL
12-14 Years: 2.90-5.40 mg/dL
14-18 Years: 2.70-4.70 mg/dL
18-60 Years: 2.30-4.70 mg/dL
60 Years and above: 2.30-3.70 mg/dL
0-6 Days: 4.80-8.20 mg/dL
6-365 Days: 4.30-7.40 mg/dL
1-4 Years: 4.10-5.40 mg/dL
4-7 Years: 3.70-5.60 mg/dL
7-12 Years 3.30-5.40 mg/dL
12-14 Years: 2.90-5.40 mg/dL
14-18 Years: 2.70-4.70 mg/dL
18-60 Years: 2.30-4.70 mg/dL
60 Years and above: 2.30-3.70 mg/dL
Performing Laboratory
ARKADELPHIA LABORATORY CONWAY LABORATORY FORT SMITH LABORATORY HEBER SPRINGS LABORATORY LITTLE ROCK LABORATORY NORTH LITTLE ROCK LABORATORY VAN BUREN LABORATORY MALVERN LABORATORY EL DORADO LABORATORY MAGNOLIA LABORATORY DREW COUNTY LABORATORY
Last Updated: August 28, 2026
