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Test Code NMS1 Necrotizing Myopathy Evaluation, Serum


Ordering Guidance


Before ordering this test, assess the probability of the patient having immune-mediated necrotizing myopathy by using the Immune-mediated necrotizing myopathy calculator.



Necessary Information


Provide the following information:

-Relevant clinical information

-Ordering provider name, phone number, mailing address, and e-mail address



Specimen Required


Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 3 mL

Collection Instructions: Centrifuge within 2 hours of collection and aliquot serum into a plastic vial.


Specimen Type

Serum

Specimen Minimum Volume

2 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 28 days
  Frozen  28 days
  Ambient  72 hours

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject

Reference Values

3-Hydroxy-3-Methylglutaryl Coenzyme-A (HMG-CoA) Reductase:

<20.0 CU

 

Signal Recognition Particle Antibody Screen:

Negative

 

Signal Recognition Particle Antibody:

Negative

 

Signal Recognition Particle Antibody, Titer:

<1:240

Day(s) Performed

Tuesday, Thursday

 

Report Available

10 to 14 days

Specimen Retention Time

28 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

86255

82397

86256 (if appropriate)

84182 (if appropriate)

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
SRPBS SRP Immunoblot, S No No
SRPTS SRP IFA Titer, S No No