Echinococcus Antibody, IgG

Label Mnemonic:	ECHINO
Epic code:	LAB4481
Downtime form:	A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Commercial Mailout Laboratory
6240-8 RCP
356-8593

Specimen(s):

Serum

Specimen Instructions:

Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of acute specimens. Please mark specimens plainly as "acute" or "convalescent."

Collection Medium:

Red top tube 5 mL (Clot Activator)

Minimum:

Preferred Minimum: 1 mL serum
Absolute Minimum: 0.15 mL serum

Rejection Criteria:

Severely lipemic or contaminated specimens.

Delivery Instructions:

Submit specimen to laboratory as soon as possible after collection.

Turn Around Time:

1-5 days upon receipt at reference laboratory

Reference Range:

0.000-0.890 IV
 Negative - No significant level of Echinococcus IgG antibody detected.

0.900-1.009 IV
 Equivocal - Questionable presence of Echinococcus IgG antibody
             detected. Repeat testing in 10-14 days may be helpful.

1.210 IV or greater
 Positive - Presence of IgG antibody to Echinococcus detected,
            suggestive of current or past infection.

Interpretive Data:

Patients with collagen vascular diseases, hepatic cirrhosis, schistosomiasis, and other parasitic infections can produce false- positive results. There is a strong cross-reaction between echinococcosis- and cysticercosis-positive sera.

Seroconversion between acute and convalescent sera is considered strong evidence of recent infection. The best evidence for infection is a significant change on two appropriately timed specimens where both tests are done in the same laboratory at the same time.

Methodology:

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

CPT Code:

86682