Lactate Dehydrogenase (LDH), Apheresis — Procedure Type
This test measures LDH in a blood sample associated with an apheresis procedure and records the procedure type reported by the laboratory.
["The result shows blood LDH activity, but it must be interpreted with the apheresis collection details and the sample condition."]
Key facts at a glance
- LOINC
- 53805-8
- Short code
- LDL apheresis procedure type
- Synonyms
- LDL apheresis procedure type
- Category
- lipid
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0
- Ref high
- 100
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 83721
- SNOMED
- 113079007
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What is this test?
Lactate dehydrogenase, or LDH, is an enzyme found in many body tissues. This laboratory entry measures LDH activity in a blood sample associated with an apheresis procedure, which is a process that removes selected blood components and returns the rest of the blood to the donor.
Why might I need this test?
LDH may be checked to help evaluate possible tissue injury, including injury involving the liver, muscles, or blood cells. In an apheresis setting, the procedure type and specimen details help the care team determine how the result should be used.
How is the test performed?
A blood sample is obtained during or from the apheresis collection process and analyzed in the laboratory for LDH activity. The report may also identify the type of apheresis procedure associated with the specimen.
How do I prepare for the test?
No special preparation is usually required beyond following the instructions provided by the apheresis team. Drink fluids as directed, and tell the care team if you have recently had muscle injury, hemolysis, or other health changes that could affect the result.
Reference range
Optimal: <100 mg/dLN/A
Fasting for 12-14 hours preferred. Water is permitted. Avoid alcohol for 24 hours before the test.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Elevated LDH may occur with red blood cell or other tissue damage, liver injury, muscle injury, and some blood disorders. Results collected during apheresis can also be affected by sample handling or red blood cell breakdown, so the healthcare professional should interpret the value alongside the procedure type and other findings.
Short name
LDH during apheresis
Frequently asked questions
Is this the same test as a routine LDH blood test?
What does apheresis mean?
What can affect an apherisis-associated LDH result?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy