Mayo Medical Laboratories



Mayo Medical Laboratories

Connective Tissue Diseases Cascade Test-Ordering Algorithm #1 (CTDC1)

Connective Tissue Diseases Cascade, Serum

-----------------------

Supports diagnosis of

Rheumatoid Arthritis

Antinuclear Antibodies (ANA), Serum

No further testing

< 1.0 U

Negative

( 20 Units

Cyclic Citrullinated Peptide Antibodies

( 1.0 U

(10 IU/mL

20 Units

CCP – Antibodies

(Order Separately – CCPB)

Supports diagnosis of lupus erythematosus

No further

testing

#83630 Antibodies to Extractable Nuclear Antigens, Reflex, Serum

Automatically performs the following tests

5-9 IU/mL

Indeterminate

#81357 Autoantibodies

to U1 RNP, Serum

#81358 Autoantibodies to Sm, Serum

#81360 Autoantibodies to SS-A/Ro, Serum

#81359 Autoantibodies to SS-B/La, Serum

#80178 Autoantibodies to Scl 70, Serum

#80179 Autoantibodies

to Jo 1, Serum

Positive result supports the diagnosis of Sjögren syndrome or other CTD*

Positive result supports the diagnosis of

lupus erythematosus*

Positive result supports the diagnosis of Sjögren syndrome or other CTD*

Positive result supports the diagnosis of mixed connective tissue disease*

Positive result supports the diagnosis of scleroderma*

Positive result supports the diagnosis of polymyositis*

* If negative, no further testing is performed.

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download