LOINC Code 74305-4: PRRSV Ag IF Ql (Specimen)

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Porcine reproductive and respiratory syndrome virus Ag. It is commonly used with the system or sample type XXX.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Both
• Method: IF

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• PRRSV Ag [Presence] in Specimen by Immunofluorescence
• Porcine reproductive and respiratory syndrome virus Ag
• Immunofluorescent antibody test for PRRS virus antigen in specimens such as serum tissue, lavage fluid, etc.
• Abortus blauw; ACIF; Anticomplement Immunofluorescence; Antigen; Antigens; Blue-eared pig disease; DFA; FA; Fluorescent antibody; Fluoresent; ID; IFA; Immune fluorescence; Immunoflour; Immunofluor; Immunofluorescence; Infectious Disease; InfectiousDisease; Lelystad virus; Microbiology; Misc; Miscellaneous; Mystery swine disease; Ordinal; Other; Point in time; Porcine epidemic abortion & respiratory syndrome; Porcine reproductive and respiratory syndrome; Pork; PR; PRRS; PRRSV; PRRSV Ag; Ql; Qual; Qualitative; Random; Screen; Seuchenhafter spatabort der schweine; SIRSV; Spec; Swine; Swine infertility and respiratory syndrome; Syndrome dysgenesique et respiratoire porcin; Time Resolved Fluorescence; To be specified in another part of the message; TRF; Unspecified; Vet; Veterinary

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions