p50 by Oxygen Dissociation, RBC - LG3737


Sunquest Code:P50OXD  
Epic Code:LAB6312Epic Name:p50 by Oxygen Dissociation
Order Instructions:Cancel and reorder as MMMISC Oxygen Dissociation P50, RBC.
Synonyms:Oxygen Dissociation p50; Hemoglobin Oxygen Affinity
CPT Code:82820
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 1-3 days.
Special Instructions:Patient sample and control must be transported together and arrive with 72 hours of collection Mon-Fri.
Compliance:

This test was developed and its performance characteristics determined by Laboratory Medicine and Pathology, Mayo Clinic. This test has not been cleared by the U.S. Food and Drug Administration.



Collection Instructions

Specimen:Blood
Optimal Volume:5 mL
Minimum\Peds Volume:1 mL
Collection Instructions:Include a control specimen drawn at the same time from a normal, unrelated, nonsmoking individual: draw blood in a green top (heparin) tube(s), and send 5.0 mL fresh heparinized whole blood refrigerated. Do not transfer blood to other tubes. Label clearly on outermost label "Normal Control" and male or female. Rubber band patient specimen(s) and control vial together for transport.
Causes for Rejection:Specimens over 72 hours old; missing control; frozen specimen; gross hemolysis.


Processing and Shipping

Specimen Processing:5 mL, 1 mL minimum, heparinized whole blood. Store at refrigerated temperature.
Shipping Instructions:Ship at refrigerated temperature. Must arrive within 72 hours of collection. Must arrive Mon-Fri only.
Test Performed at or Referral Lab Lab Sendouts  (Mayo)
Referral Lab number:P50B


Interpretive

Reference Range:12 months or older: 24-30 mm Hg *Reference values have not been established for patients less than 12 months of age.


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