Lipemia in a serum sample is typically observed as which of the following?

Lipemia in a serum sample is typically observed as which of the following?

• A. Lipemia in serum appears as a pink milkshake; postprandial and fasting can cause it; often associated with hemolysis; affects certain analyses; may increase plasma protein
• B. Clear serum with no lipids
• C. A yellow serum due to bilirubin
• D. A dark red serum due to high iron

Answer: (A)

Lipemia in serum is recognized by a milky, turbid appearance caused by high levels of triglyceride-rich lipoproteins in the sample. This light-scattering turbidity gives the serum a pink-tinged, milkshake-like look. It most often appears after a fatty meal (postprandial), though lipemia can also be seen in fasting samples in individuals with severe hyperlipidemia or metabolic disorders. That cloudy, lipid-rich appearance is the key feature labs focus on, because it can interfere with many colorimetric and photometric analyses, potentially skewing results. The yellow coloration described by another option points to elevated bilirubin (icterus), while a dark red color suggests hemolyzed serum from red blood cell rupture; these are different issues from lipemia.

Lipemia in serum is recognized by a milky, turbid appearance caused by high levels of triglyceride-rich lipoproteins in the sample. This light-scattering turbidity gives the serum a pink-tinged, milkshake-like look. It most often appears after a fatty meal (postprandial), though lipemia can also be seen in fasting samples in individuals with severe hyperlipidemia or metabolic disorders. That cloudy, lipid-rich appearance is the key feature labs focus on, because it can interfere with many colorimetric and photometric analyses, potentially skewing results. The yellow coloration described by another option points to elevated bilirubin (icterus), while a dark red color suggests hemolyzed serum from red blood cell rupture; these are different issues from lipemia.