What appearance does a lipemic specimen typically have?

A lipemic specimen typically has a milky appearance due to the high concentration of lipids present in the serum or plasma. When a patient has elevated triglyceride levels, which can occur in various conditions such as hyperlipidemia, the lipids can cause the plasma to become turbid. This milky appearance arises because the lipids are suspended in the aqueous phase of the sample, scattering light and giving the specimen its characteristic turbid or opaque look.

In contrast, other appearances like clear and translucent can indicate a normal specimen without significant lipid content. A dark and opaque appearance could be indicative of other issues like hemolysis or jaundice, and a light yellowish color usually signifies slightly increased bilirubin levels but not the presence of lipids. Understanding the specific appearance of a lipemic specimen is crucial for laboratory diagnosis and appropriate patient management.