Blood typing, serologic; Rh (D)
CPT4 code
Name of the Procedure:
Blood Typing, Serologic; Rh (D), also known as Rhesus (Rh) factor typing.
Summary
Blood typing for the Rh factor is a lab test that determines whether a person's blood has the Rh (D) antigen on the surface of red blood cells. This helps categorize blood as Rh-positive or Rh-negative.
Purpose
Blood typing for the Rh factor is crucial for blood transfusions, pregnancy care, and certain medical treatments. It helps prevent complications from blood type incompatibilities and guides proper medical care.
Indications
- Before blood transfusions
- During pregnancy to avoid Rh incompatibility
- Before surgical procedures requiring blood
- Investigation of hemolytic diseases in newborns
Preparation
No special preparation is usually required. Patients can eat and drink normally. The healthcare provider might review the patient’s medical history regarding blood transfusions or pregnancies.
Procedure Description
- A healthcare professional collects a blood sample from the patient using a needle and syringe.
- The sample is sent to a lab where it is tested for the presence of the Rh (D) antigen using serologic techniques.
- The result, Rh-positive or Rh-negative, is recorded and used for medical decisions.
Duration
The blood collection takes a few minutes, and results are typically available within a few hours to a day.
Setting
The procedure is performed in a hospital, outpatient clinic, or laboratory.
Personnel
- Nurse or phlebotomist for blood collection
- Laboratory technician or medical technologist for testing and analysis
Risks and Complications
- Minor risk of infection or bruising at the needle site
- Slight discomfort during blood draw
Benefits
- Ensures safe blood transfusions
- Prevents Rh incompatibility issues during pregnancy
- Supports proper medical management for various conditions
Recovery
There is no recovery period needed. Patients can resume normal activities immediately after the blood draw.
Alternatives
- Genetic testing for Rh factor: More expensive, but can be used in special circumstances
- Reference to previous medical records for known Rh status
Patient Experience
Patients typically feel a brief pinch during the blood draw. Post-procedure, there might be slight soreness at the puncture site, which can be managed with simple comfort measures like applying a cold pack.