Echo Virus Ab
Label Mnemonic: ECHO
Epic Lab Code: LAB3047
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
Serum or CSF
Specimen Instructions:
Acute and convalescent samples must be labeled as such; parallel testing is preferred and convalescent samples must be received within 30 days from receipt of acute samples. Please mark samples plainly as "acute" or "convalescent."
Collection Medium:
Red top tube 5 mL (Clot Activator)
Preferred Minimum: 1 mL serum or CSF
Absolute Minimum: 0.3 mL serum or CSF
Rejection Criteria:
Delivery Instructions:
Submit specimen to laboratory as soon as possible after collection.
Turn Around Time:
within 10 days upon receipt at reference laboratory 6-9 days upon receipt at reference laboratory
Reference Range:
Echovirus 6: Less than 1:10 Echovirus 7: Less than 1:10 Echovirus 9: Less than 1:10 Echovirus 11: Less than 1:10 Echovirus 30: Less than 1:10
Interpretive Data:
Single positive antibody titers of greater than or equal to 1:80 may indicate past or current infection. Seroconversion or an increase in titers between acute and convalescent sera of at least fourfold is considered strong evidence of current or recent infection.
Semi-Quantitative Serum Neutralization
CPT Code:
86658 (x5)