Drinking a small amount of water before a blood lipid test usually requires no special treatment and the blood lipids can still be measured normally, as drinking a small amount of water will not affect the lipid measurements. Lipids is a general term for neutral fats and lipids in human plasma, which are essential for the basic metabolism of human cells. The common clinical lipid tests include triglycerides, total cholesterol, HDL cholesterol and LDL cholesterol. Drinking a small amount of water before the measurement of the four lipids will not affect the measurement of lipids. However, a greasy diet before the test will lead to dyslipidemia, so you can drink a small amount of water before the lipid profile test, but you should fast for 12 hours to ensure that the measurement value is true and accurate.