Lactate dehydrogenase (LD), (LDH)
CPT4 code
Name of the Procedure:
Lactate Dehydrogenase (LD), also known as LDH measurement or LDH test.
Summary
The LDH test measures the amount of lactate dehydrogenase enzyme in your blood, which helps evaluate tissue and cellular damage in your body.
Purpose
The LDH test helps diagnose and monitor conditions that cause tissue damage, such as heart attacks, hemolytic anemia, and certain infections. The goal is to identify elevated enzyme levels that indicate cell damage or disease processes.
Indications
- Unexplained symptoms like fatigue, weakness, or jaundice
- Suspected heart attack or other forms of heart disease
- Monitoring of certain cancers
- Evaluation of liver, kidney, or muscle diseases
- Conditions causing hemolysis (destruction of red blood cells)
Preparation
- No specific preparation is usually required.
- Inform your doctor about any medications or supplements you are taking, as some can affect test results.
- Fasting is not typically necessary but follow any specific instructions given by your healthcare provider.
Procedure Description
- Blood Sample Collection: A healthcare professional will disinfect the area, usually inside of your elbow, and draw a small amount of blood using a needle.
- Sample Analysis: The blood sample is sent to a laboratory where it will be analyzed for LDH levels using specialized equipment.
- Tools: Sterile needle, syringe, blood collection tube.
- Anesthesia/Sedation: Not required; the procedure involves minimal discomfort.
Duration
The blood draw takes about 5-10 minutes. Laboratory analysis may take a few hours to a couple of days, depending on the facility.
Setting
The procedure is performed in a doctor's office, outpatient clinic, or hospital laboratory.
Personnel
A phlebotomist or nurse performs the blood draw, and a laboratory technician or technologist analyzes the sample.
Risks and Complications
- Mild pain, bruising, or infection at the injection site (rare).
- Feeling lightheaded or fainting during or after the blood draw (rare).
Benefits
- Identifies tissue damage and helps diagnose underlying conditions.
- Assists in monitoring the progress and effectiveness of ongoing treatments.
Recovery
- Minimal recovery time; most patients can resume normal activities immediately.
- Apply pressure to the puncture site to minimize bleeding and bruising.
Alternatives
- Specific enzyme tests like creatine kinase (CK) for muscle damage.
- Imaging studies for structural anomalies (e.g., MRI, CT scans).
- These alternatives provide detailed information about specific organs but may come with higher costs or the need for more specialized settings.
Patient Experience
- Mild discomfort or a quick pinch during the blood draw.
- Possible slight bruising or tenderness at the puncture site.
- Typically, an uneventful and straightforward procedure with minimal recovery needed. Enriching well-being by ensuring accurate diagnosis and appropriate treatment plans.
Note: Always consult with your healthcare provider for personalized medical advice tailored to your health situation.