65633-0
LaboratoryHepatitis B virus surface Ag [Presence] in Serum or Plasma by Confirmatory method
Definition
All of the major laboratories whose web sites we explored perform a confirmatory test to verify positive results on their routine HBS Ag EIA test. Some indicate that the confirmatory test requires and an extra charge, some do not. We believe that at present (2011) the confirmatory test is usually a neutralization test. But only one lab that we reviewed specified the method as such. This term covers all confirmatory methods and will not require changing if/when confirmatory methods change.
LOINC 6-Axis Classification
Component
Hepatitis B virus surface Ag
Property
PrThr
Time Aspect
Pt
System
Ser/Plas
Scale Type
Ord
Method Type
Confirm
Details
Class
MICRO
Order/Observation
Both
Short Name
HBV surface Ag SerPl Ql Cfm
Display Name
HBV surface Ag Confirm Ql
Related Names
Frequently Asked Questions
What is LOINC code 65633-0?
LOINC code 65633-0 identifies "Hepatitis B virus surface Ag [Presence] in Serum or Plasma by Confirmatory method". All of the major laboratories whose web sites we explored perform a confirmatory test to verify positive results on their routine HBS Ag EIA test. Some indicate that the confirmatory test requires and an extra charge, some do not. We believe that at present (2011) the confirmatory test is usually a neutralization test. But only one lab that we reviewed specified the method as such. This term covers all confirmatory methods and will not require changing if/when confirmatory methods change.
What does 65633-0 measure?
This code measures Hepatitis B virus surface Ag in Ser/Plas. It belongs to the MICRO class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.