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Hemoglobin, Free, Plasma
|Collection Instructions||Results are highly dependent upon meticulous technique employed in collecting the specimen. To avoid hemolysis use an 18-19 ga. butterfly needle and discard the first 4 mL. Alternatively, apply a tourniquet and perform a venipuncture with an 18-19 ga. needle; collect any other tubes which are needed before releasing the tourniquet with the vacutainer still in the vein and collecting the sample for the hemoglobin assay. If no other samples are being collected at the same time, draw and discard one tube, release the tourniquet, then draw a second tube and submit the second tube for analysis.|
|Container type||Dark Green top|
|Amount to Collect||2 mL blood|
|Sample type||Heparinized plasma|
|Preferred volume||1 mL plasma|
|Min. Volume||0.2 mL plasma|
|Processing notes||Freeze separated plasma, which must not contain RBCs. Order Quest # 514|
|Normal range||≤ 6.9 mg/dL|
|Synonyms||hemoglobin, free; Free Hgb; Free Hb|
|Turn around times||Test run 3x per week. Turnaround time 3-6 days.|
|Additional information||If extreme care is used to avoid hemolysis during phlebotomy values of < 1 mg/dL would be expected.
To convert mg/dL to µmol/L (SI units) multiply by 0.155.
|Last Updated||3/14/2011 9:19:05 AM|
If you have additional questions regarding this test, please call: 415-353-1667