Test Code Phos Phosphorus Level

Aliases

PO4

Patient Preparation

No special patient preparation required

Container

Lt Green / Plasma Separator / Lithium Heparin

Preferred Specimen

Light Green Top (lithium heparin) plasma

Acceptable Specimens

Serum:

Gold Top SST
Red Top

Plasma:

Light Green Top (lithium heparin)
Purple Top(K2 EDTA)

Reference or Target Ranges

Males:	Females:
0-30 days: 3.9 - 6.9 mg/dL	0-30 days: 4.3 - 7.7 mg/dL
1-12 months: 3.5 - 6.6 mg/dL	1-12 months: 3.7 - 6.5 mg/dL
1-3 years: 3.1 - 6.0 mg/dL	1-3 years: 3.4 - 6.0 mg/dL
4-6 years: 3.3 - 5.6 mg/dL	4-6 years: 3.2 - 5.5 mg/dL
7-9 years: 3.0 - 5.4 mg/dL	7-9 years: 3.1 - 5.5 mg/dL
10-12 years: 3.2 - 5.7 mg/dL	10-12 years: 3.3 - 5.3 mg/dL
13-15 years: 2.9 - 5.1 mg/dL	13-15 years: 2.8 - 4.8 mg/dL
16-18 years: 2.7 - 4.9 mg/dL	16-18 years: 2.5 - 4.8 mg/dL
≥ 18 years: 2.4 - 5.1 mg/dL	≥ 18 years: 2.4 - 5.1 mg/dL

Reportable Units

mg/dL

Critical Value

<1.0 mg/dL

Reasons for Rejection

Hemolysis Threshold	500mg/dL
Icterus Threshold	30 mg/dL
Lipemia Threshold	125 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	UH Chemistry
Methodology/Method Description	Siemens Atellica - Colorimetric Assay

CPT Codes

84100