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Delta OD450
Test Mnemonic:

 OD450
Methodology:

 Absorption Spectrophotometry
Performed:

 Special Chemistry; Monday  - Friday :  7-3:30 pm
Turnaround Time:

  M-F: within 24 hours

Specimen Requirements: Collect: 6 mL of aminotic fluid by Trans abdominal Amniocentesis. Acceptable: specimens obtained from a pool of fluid in the vagina immediately after rupture of the membranes.  Collect in Amber tube or wrap tube in aluminum foil to protect from light. (Min: 2 mL)  

Specimen Preparation:  Centrifuge the specimen and note the appearance. Protect specimen from light.

 Storage/Transport:  Deliver specimen to Sample Management within two hours after collection.

Stability:  Refrigerate   for ≤ one week or frozen for ≤ 3 month.

Causes for Rejection: Sample not protected from light, incomplete and/or incorrect sample identification, improper storage/transport.                                   
Clinical Information:

If applicable, state clinical information that is required to be provided with specimen.
Reference Range:

By report (reports may vary based on instrumentation, patient age and sex)
Note:

 Protect tube from light, and need to call the main lab x29227 at least 2 hours before sending sample.  Not available on Week-ends.
CPT 4 Code:

 82143
  Reviewed by Tho Nguyen, MT(ASCP) 7/5/13

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient.  Components of the organ or disease panels may be ordered individually.  The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-9 code or its verbal equivalent.
   
 

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