User's Manual

2. Test principle
LIPID
The SD LipidoCare Professional System combines enzymatic methodology and solid-phase
technology to measure total cholesterol (TC), HDL cholesterol (HDL), and triglycerides (TG).
Blood sample used for testing is whole blood from a fingerstick. The sample is applied to an SD
LipidoCare Professional Test Strip. The test strip is then placed into the SD LipidoCare
Professional Analyzer, where a unique system on the test strip separates the plasma from the
blood cells. A portion of the sample flows to the bottom layer of the test strip and is transferred
to the total cholesterol, triglyceride, and HDL cholesterol (HDL) reaction pads. The SD
LipidoCare Professional Analyzer measures TC, TG, and HDL by an enzymatic method based on
the method formulation of Allain et al.
6
and Roeschlau.
7
To measure TC, TG, and HDL in the
blood, the following formulations are used:
GLUCOSE
The SD LipidoCare Professional Blood Glucose test strip is designed with an electrode that
measures glucose levels. Glucose in the blood mixes with the reagent on the test strip and
causes a small electric current. The amount of current created depends on how much glucose
is in the blood. The SD LipidoCare Professional Analyzer measures the current created and
converts it to the amount of glucose. The blood glucose result is displayed on the LCD display.
Once a drop of blood touches the tip of the glucose test strip, the strip's reaction chamber
automatically draws the blood into the strip through capillary action. When the chamber is full,
the SD LipidoCare Professional Analyzer starts to measure the blood glucose level.
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