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Test Code PHOS Phosphorus Level

Additional Codes

LAB113

Performing Laboratory

Central Peninsula Hospital

Collection Method

Venipuncture

Container

Lt Green / Plasma Separator / Lithium Heparin

Specimen Type

Preferred

  • Plasma- Light Green Top (Lithium heparin)

 

Acceptable

  • Serum- Gold Top SST or Red Top

Minimum Volume

0.5ml

Specimen Stability

Ambient 24 hours
Refrigerated (4°C to 8°C) 4 days
Frozen(-40°C to 0°C) 1 years

Reference or Target Ranges

Age Male Female
0 - 7 days 4.6 - 8.0 4.6 - 8.0
1 week - 4 years 3.9 - 6.5 3.9 - 6.5
5 - 13 years 3.7 - 5.4 4.0 - 5.4
14 - 15 years 3.5 - 5.3 3.5 - 4.9
16 - 17 years 3.1 - 4.7 3.1 - 4.7
> 18 years 2.5 - 4.5 2.5 - 4.5

 

Reportable Units

mg/dl

Critical Value

≤ 1.0 mg/dl

Reasons for Rejection

Hemolysis Threshold 300 mg/dL
Icterus Threshold 40 mg/dL
Lipemia Threshold 1250 mg/dL
Other QNS, contaminated, improperly labeled, improper specimen type

Performance Information

Days and Time Performed 24/7
Expected Turn Around Time Stat: 1 hour
Routine: 4 hours
Stat Availability Yes
Performing Bench CPH Chemistry
Methodology/Method Description Roche Cobas

CPT Codes

84100

Last review/edit date

2025