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Orderable Name BIOTS Biotinidase, Serum

Useful For

Preferred test for the diagnosis of biotinidase deficiency

 

Follow-up testing for certain organic acidurias

Specimen Type

Serum


Ordering Guidance


Molecular testing is available, see BTD / Biotinidase Deficiency, BTD Gene Sequencing with Deletion/Duplication, Varies.

 

If measurement of biotin concentration is requested, order BIOTN / Biotin, Serum.



Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL serum

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Specimen Minimum Volume

Serum: 0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Frozen (preferred) 21 days
  Refrigerated  5 days

Reference Values

3.5-13.8 U/L

Day(s) Performed

Monday, Thursday

CPT Code Information

82261

Report Available

2 to 5 days

Reject Due To

Gross hemolysis Reject
Gross lipemia OK
Gross icterus OK

Method Name

Colorimetric

Forms

1. New York Clients-Informed consent is required. Document on the request form or electronic order that a copy is on file. The following documents are available:

-Informed Consent for Genetic Testing (T576)

-Informed Consent for Genetic Testing-Spanish (T826)

2. Biochemical Genetics Patient Information (T602)

3. If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.