Which pairing correctly matches triglyceride appearance with approximate level?

• A. Clear/Hazy: 200; Turbid: 300; Lactescent: 400; Milky-Opaque: 600
• B. Clear/Hazy: 300; Turbid: 200; Lactescent: 600; Milky-Opaque: 400
• C. Clear/Hazy: 100; Turbid: 200; Lactescent: 400; Milky-Opaque: 800
• D. Clear/Hazy: 250; Turbid: 350; Lactescent: 450; Milky-Opaque: 550

Answer: (A)

Lipemia in serum or plasma reflects the amount of triglyceride carried by lipoproteins. As triglyceride levels rise, the sample becomes more opaque because more lipoprotein particles scatter light. The progression from clear to hazy, to turbid, to lactescent, and finally to milky-opaque roughly follows increasing triglyceride concentrations: around 200 mg/dL the appearance starts to be hazy, about 300 mg/dL it becomes turbid, around 400 mg/dL it appears lactescent, and roughly 600 mg/dL it is milky-opaque due to dominant chylomicrons. This sequence aligns with the pairing shown: Clear/Hazy ≈ 200, Turbid ≈ 300, Lactescent ≈ 400, Milky-Opaque ≈ 600. Exact thresholds can vary slightly by lab, but the order reflects how lipemia appearance correlates with triglyceride levels.