Antibody identification, RBC antibodies, each panel for each serum technique
CPT4 code
Name of the Procedure:
Antibody Identification, RBC Antibodies, Each Panel for Each Serum Technique (Commonly referred to as "Antibody Identification" or "RBC Antibody Panel")
Summary
Antibody identification is a blood test used to detect and identify specific antibodies present in a patient's blood that might react against red blood cells (RBCs). This test helps to understand if there are any unusual antibodies that could cause problems during blood transfusions or pregnancy.
Purpose
The main aim of the antibody identification test is to ensure safe blood transfusions and to monitor pregnancies for hemolytic disease of the fetus and newborn (HDFN) caused by RBC antibodies. Identifying these antibodies helps prevent adverse reactions during transfusions and manage complications in pregnant women.
Indications
- Unexplained anemia or hemolysis
- Preparing for a blood transfusion
- Pregnant women to prevent HDFN
- Prior to organ or tissue transplantation
- Monitoring patients with autoimmune hemolytic anemia (AIHA)
Preparation
- No fasting or special diet is required.
- Inform the doctor about any medication being taken, as some might affect the test.
- Blood sample collection may be advised at a specific time if the patient is on medications or treatments that could interfere.
Procedure Description
- A blood sample is collected from the patient, typically from a vein in the arm.
- The sample is processed in a laboratory where serum is separated from the blood cells.
- The serum is then exposed to a panel of reagent red blood cells (RBCs) with known antigens under different conditions and techniques to identify the presence of specific antibodies.
- Reactions are observed and recorded to determine the antibody profile.
- Tests include methods like the indirect antiglobulin test (IAT), gel card methods, or solid-phase assays.
Duration
The procedure, including blood draw, typically takes 10-15 minutes. Laboratory analysis may take several hours to a few days, depending on the complexity and urgency.
Setting
The initial blood draw is performed in a hospital, outpatient clinic, or doctor's office. Laboratory analysis is conducted in a specialized medical lab.
Personnel
- Phlebotomist or nurse for blood collection
- Medical Laboratory Technologist for test analysis
- Hematologist or Transfusion Medicine Specialist for interpretation of results
Risks and Complications
- Minor risks include discomfort, bruising, or infection at the blood draw site.
- Rarely, a larger hemotoma may develop.
- There are no significant complications directly associated with the test itself.
Benefits
- Ensures the safety and compatibility of blood transfusions.
- Prevents hemolytic disease of the fetus and newborn in pregnant women.
- Helps diagnose and manage autoimmune hemolytic anemia.
- Provides valuable information for managing unexplained anemia.
Recovery
- Post-procedure care is minimal.
- Patients can return to normal activities immediately after the blood draw.
- Follow-up appointments are scheduled as needed based on test results.
Alternatives
- Direct Antiglobulin Test (DAT) for detecting antibodies attached to RBCs.
- Saline Agglutination Test for simpler antibody screening.
- Pros: Alternatives may be quicker and less complex.
- Cons: Not as comprehensive in detecting specific antibodies compared to the antibody identification panel.
Patient Experience
- During the blood draw, patients might feel a brief sting or pinch.
- Mild soreness or bruising at the puncture site can occur.
- Comfort measures include applying a bandage and possibly an ice pack for swelling.
- Laboratory processing is done away from the patient, with no physical sensation involved.