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Test ID BLOD0092 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 BTDZ / Biotinidase Deficiency, BTD Full Gene Analysis, Varies.

 

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



Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

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


Specimen Minimum Volume

0.5 mL

Reject Due To

Gross hemolysis Reject
Gross lipemia OK
Gross icterus OK

Specimen Stability Information

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

Day(s) Performed

Monday, Thursday

Report Available

2 to 5 days

Method Name

Colorimetric

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

82261

Reporting Name

Biotinidase, S

Reference Values

3.5-13.8 U/L

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

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.

Sanford Laboratories - Fargo Additional Information:

SANFORD INTERFACE BUILD INFORMATION

Result Code Result Code Description
15921

Specimen
15922 Specimen ID
15923 Source
15924 Order Date
15925 Reason for Referral
15926 Method
15927 Biotinidase, S
15928 Interpretation
15929 Amendment
15930 Reviewed By
15931 Release Date