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Multiple Choice

In a standing plasma test, how do you know what analyte is what?

In a standing plasma test, separation of lipoproteins is driven by density. Chylomicrons are the least dense, so they rise to the very top as a creamy layer. The next-least dense fraction, VLDL, forms a middle, uniformly turbid region. The denser lipoproteins, LDL and HDL, stay lower in the sample, with HDL typically appearing as a clear bottom fraction and LDL identified by a color cue used in this test. So the description that the top thick layer is chylomicrons, the middle shows uniform turbidity from VLDL, the orange color marks LDL, and the bottom remains clear as HDL aligns with how the test interprets the layers. The other statements conflict with the density-based separation and the color coding used in this context.

In a standing plasma test, separation of lipoproteins is driven by density. Chylomicrons are the least dense, so they rise to the very top as a creamy layer. The next-least dense fraction, VLDL, forms a middle, uniformly turbid region. The denser lipoproteins, LDL and HDL, stay lower in the sample, with HDL typically appearing as a clear bottom fraction and LDL identified by a color cue used in this test. So the description that the top thick layer is chylomicrons, the middle shows uniform turbidity from VLDL, the orange color marks LDL, and the bottom remains clear as HDL aligns with how the test interprets the layers. The other statements conflict with the density-based separation and the color coding used in this context.