75639-5
LaboratoryLactate dehydrogenase in body fluid/Lactate dehydrogenase in serum
Definition
LDH body fluid to LDH serum ratio aids in determining whether a fluid is an exudate (actively secreted fluid, e.g. due to inflammation), or transudate (passively secreted fluid, due to high hydrostatic pressure or low oncotic pressure). The usual criterion is that a ratio of fluid LDH versus upper limit of normal serum LDH of more than 0.6 or 2⁄3 indicates an exudate, while a ratio of less indicates a transudate.
LOINC 6-Axis Classification
Component
Lactate dehydrogenase.body fld/Lactate dehydrogenase.serum
Property
RelRto
Time Aspect
Pt
System
Body fld+Ser/Plas
Scale Type
Qn
Method Type
N/A
Details
Class
CHEM
Order/Observation
Both
Short Name
LDH.body fld/SerPl
Display Name
LDH.body fld/Lactate dehydrogenase in serum (Body fld+S/P) [Relative ratio]
Related Names
Frequently Asked Questions
What is LOINC code 75639-5?
LOINC code 75639-5 identifies "Lactate dehydrogenase in body fluid/Lactate dehydrogenase in serum". LDH body fluid to LDH serum ratio aids in determining whether a fluid is an exudate (actively secreted fluid, e.g. due to inflammation), or transudate (passively secreted fluid, due to high hydrostatic pressure or low oncotic pressure). The usual criterion is that a ratio of fluid LDH versus upper limit of normal serum LDH of more than 0.6 or 2⁄3 indicates an exudate, while a ratio of less indicates a transudate.
What does 75639-5 measure?
This code measures Lactate dehydrogenase.body fld/Lactate dehydrogenase.serum in Body fld+Ser/Plas. It belongs to the CHEM class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.