Test Code PHOS Phosphorus Level

Additional Codes

LAB113

Collection Method

Venous collection

Minimum Volume

0.5ml

Container

Lt Green / Plasma Separator / Lithium Heparin

Acceptable Specimens

Serum:

Gold Top SST
Red Top

Plasma:

Light Green Top (lithium heparin)

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

Specimen Stability

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

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

March 2024