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Test Code CA/Phos/MG Oncology Monitor 2

Clinical System Name

Oncology Chemistry Monitor 2


Onc Chem2

Sample Requirements

Specimen: Whole Blood

Container(s):  Gold SST, Red Tube, or Dark Green/Sodium Heparin,  Lt. Green/Lithium Heparin Microtainer or 1 Gold Microtainer

Preferred Vol:  2.0 mL

Minimum Vol:  0.5 mL

Note: Avoid hemolysis. Verify ordering provider would like calcium, phosphorous, and magnesium.





Processing Instructions

Reject due to: Hemolysis, age of specimen, incorrect collection container.

Spin: Y

Aliquot: Y

Temp: 2-8oC

Storage location: Core Chemistry Refrigerator


Off-site collection:  Avoid hemolysis. Refer to instructions for calcium, phosphorous, and magnesium.


Specimen Type Temperature Ca Mg Phos
Serum or Plasma RT ≤ 4 H ≤ 7 D ≤ 3 D
Serum or Plasma 2-8oC ≤ 22 D ≤ 7 D ≤ 7 D
Serum or Plasma -20o C or -70oC ≤ 365 D ≤ 30 D ≤ 60 D



STAT Performed TAT
Y 24/7 1 H


Performing Laboratory

Seattle Children's Laboratory    



Department:  Core Chemistry

Phone Number: 206-987-2617



Reference Range

Refer to individual tests.

CPT Codes




Critical Values

Refer to individual tests.