Infectious agent antigen detection by immunofluorescent technique; not otherwise specified, each organism
CPT4 code
Name of the Procedure:
Infectious Agent Antigen Detection by Immunofluorescent Technique; not otherwise specified, each organism
- Common Name: Immunofluorescent Antigen Test
- Technical Term: Immunofluorescent Assay (IFA)
Summary
This procedure is a laboratory test that detects specific infectious agents in the body using a special technique called immunofluorescence. It involves using fluorescent-labeled antibodies that bind to unique antigens on the infectious organisms, making them visible under a specialized microscope.
Purpose
The purpose of this test is to identify infections caused by bacteria, viruses, fungi, or other microorganisms by detecting specific antigens. The test helps in diagnosing infections accurately so that appropriate treatment can be given.
Indications
- Unexplained symptoms of infection such as fever, chills, or fatigue
- Persistent or recurring infections despite treatment
- Diagnosis of specific infectious diseases such as influenza, respiratory infections, or fungal infections
- Patients with weakened immune systems who are prone to infections
Preparation
- No specific preparation such as fasting is generally required.
- Inform your healthcare provider about any medications or supplements you are taking.
- Prior diagnostic tests, such as blood tests or cultures, may be necessary to identify the potential infectious agents.
Procedure Description
- A sample is collected from the patient, which could be blood, tissue, or a swab from an infected area.
- The sample is placed on a microscope slide and treated with fluorescent-labeled antibodies.
- These antibodies bind to the specific antigens of the infectious agent present in the sample.
- Under a special fluorescence microscope, the bound antibodies emit a distinct glow, making the infectious agents visible.
- A technician or specialist examines the slide to identify the presence and type of infection.
Tools, Equipment, or Technology Used:
- Fluorescence microscope
- Fluorescent-labeled antibodies
- Sample collection tools (e.g., swabs, syringes)
Duration
- The entire procedure, from sample collection to analysis, typically takes a few hours to a day, depending on the type of sample and the infectious agent being tested.
Setting
- The procedure is usually performed in a laboratory setting.
Personnel
- Laboratory technicians or specialists
- Microbiologists or pathologists, if detailed analysis is required
Risks and Complications
- Minimal risks associated with sample collection, such as slight discomfort or minor bleeding at the site.
- Potential for false positives or negatives, necessitating further testing.
Benefits
- Accurate identification of infectious agents leading to targeted treatment.
- Rapid diagnosis compared to some other testing methods.
- Helps in the management of infectious diseases.
Recovery
- No recovery time is required for the test itself.
- Follow-up appointments may be necessary based on test results and treatment plans.
Alternatives
- Culture tests, which involve growing the organism in a lab.
- PCR (Polymerase Chain Reaction) tests, which detect genetic material of the organism.
- Serological tests, which detect antibodies produced in response to an infection.
- Pros: Other tests may provide additional information or confirmation.
- Cons: Some alternatives may take longer or be less specific.
Patient Experience
- Sample collection might be slightly uncomfortable.
- You might experience minor pain or irritation at the sample collection site.
- Pain management is usually not necessary, but comfort measures such as a topical anesthetic can be used if needed.
Please consult with your healthcare provider for more detailed information tailored to your specific medical needs.