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Porphyrins Evaluation, RBC
|Patient Preparation||Have patient fast for 12-14 hours. Water may be taken as needed. No other liquids are allowed. Patient should abstain from alcohol for 24 hours prior to sample collection. The patient should be off medications for at least 1 week prior to sample collection. If clinically inappropriate to discontinue medications,
forward a list of medications with the specimen.
|Collection Instructions||Draw a full, Dk. green top (heparin) tube, and send entire heparinized whole blood specimen on wet ice to lab immediately.
Draw specimen Monday-Thursday by noon only.
|Container type||Dark Green top on ice|
|Amount to Collect||5 mL blood|
|Sample type||Heparinized whole blood|
|Preferred volume||5 mL blood|
|Min. Volume||3 mL blood|
|UCSF Rejection Criteria||Hemolyzed or collected outside of stated time frames.|
|Processing notes||Whole Blood to be washed at Mayo Medical Laboratories. Specimen must arrive within 48 hours of draw.
Place green top on wet ice and forward whole blood to China Basin for MCI courier pickup at 1600 hours. DO NOT freeze sample.
Notify sendout at 3-1349 that specimen is en-route. Mark sample REFRIGERATED to Mayo Labs.
Order MAYO #88886. Call MCS for pickup.
|Ref Lab Rejection Criteria||Sample not received by Mayo within 48 hours of collection. Frozen sample.|
|Normal range||< 80 µg/dL|
|Synonyms||Porphyrin fractionation; RBC porphyrins|
|Turn around times||Test run Monday-Friday. Turnaround time: 3-6 days.|
|Reflex?||For samples with porphyrin ≥ 80p µg/dL fractionation is automatically performed at an additional charge.|
|Last Updated||9/8/2012 2:22:45 PM|