Which lipoprotein density range is 1.006 to 1.019?

Which lipoprotein density range is 1.006 to 1.019?

• A. Chylomicrons
• B. VLDL
• C. IDL
• D. LDL

Answer: (C)

Lipoprotein density tracks with how much triglyceride they carry: the more triglyceride, the lower the density, because lipid content lowers overall density compared with protein. Chylomicrons are the least dense due to their high triglyceride content. As triglycerides are removed from VLDL, density rises and you pass into the intermediate stage known as intermediate-density lipoprotein, which sits in the 1.006–1.019 g/mL range. With further triglyceride loss, particles become LDL, denser still (roughly 1.019–1.063 g/mL), while HDL is the densest (about 1.063–1.210 g/mL). So, the range 1.006 to 1.019 g/mL corresponds to IDL, the remnant between VLDL and LDL.

Lipoprotein density tracks with how much triglyceride they carry: the more triglyceride, the lower the density, because lipid content lowers overall density compared with protein. Chylomicrons are the least dense due to their high triglyceride content. As triglycerides are removed from VLDL, density rises and you pass into the intermediate stage known as intermediate-density lipoprotein, which sits in the 1.006–1.019 g/mL range. With further triglyceride loss, particles become LDL, denser still (roughly 1.019–1.063 g/mL), while HDL is the densest (about 1.063–1.210 g/mL). So, the range 1.006 to 1.019 g/mL corresponds to IDL, the remnant between VLDL and LDL.