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Laboratory Medicine

Test Directory / Fluid Lipids

Fluid Lipids

Urine monovette or white topped universal (no additives)

TestFluid Lipids
Common AbbreviationsFLCHO, FLTRIG
ProfileIncludes cholesterol and triglyceride
Tube typeUrine monovette or white topped universal (no additives)
Clinical IndicationFluid lipid measurement is used to identify the presence of fluid accumulation due to chylothorax.
Specimen TypeFluid
Sample typeFluid
Minimum Volume1mL
Special PrecautionsPlease visually inspect samples before sending for analysis and indicate the site of collection. Samples which are very turbid or thick may be rejected as there is a risk of damage to laboratory equipment
StabilityNo specific data available for fluids. Cholesterol and triglycerides are stable in serum for 2 days at 2-8°C and 7 days at 15-25°C
Turnaround TimeInpatient: 6 hours Outpatient/ GP: 24 hours
LaboratoryYork and Scarborough
Reference IntervalChylothorax is likely if there is visible presence of chylomicrons after centrifugation of the sample and / or if the fluid triglyceride level is >1.24mmol/L. Fluid triglycerides <0.56mmol/L usually excludes chylothorax. Fluid cholesterol >5.18mmol/L is diagnostic of pseudochylothorax
Limitations Fluid composition tends to be very variable, and the exact mixture of components in a fluid sample can have unpredictable effects on measurement of any one analyte. Our laboratory methods are NOT CE-marked or validated for analysis of fluids, and no specific quality control materials are available. ALL results must be interpreted with caution.
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