Question: What do you use to test for lipids?
Disambiguated questions and answers: question: What do you use to test lipids for abnormalities?
What method do you use to test for the presence of lipids?
answer: lipid panel
Lipid profile
Emulsion test
question: What do you use to test for lipids in food?
What do you use to test for lipids in the body?
answer: Emulsion test
Lipid panel test
Natural Questions answer: The emulsion test (from the Wikipedia article "Emulsion test")