What is the term for an opaque and milky look to serum or plasma that is most a result of high level of lipids (or fats) in blood, which can be avoid by fasting the patient prior to blood collection?

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BlackTom AI · Accepted Answer

The question asks for the term describing an opaque and milky appearance of serum or plasma caused by high lipid levels in the blood, which can be mitigated by fasting before blood collection.

The provided answer is Lipemia. This is the standard medical term for milky or turbid serum/plasma due to elevated triglycerides or lipids in the blood. Lipemia results from a high concentration of chylomicrons and other lipids that scatter light, giving the sample a cloudy or opaque look. Fasting helps reduce postprandial lipids and thus can minimize lipemia at the time of sample collection, improving accuracy of certain tests.

Because no alternative answer choices are supplied in the prompt, there is no basis here to compare Lipemia against other options. However, it’s useful to distinguish lipemia from related concepts: hyperlipidemia refers to high lipid levels in the blood generally, but lipemia specifically describes the appearance (cloudiness) of the serum/plasma; lipemic samples can interfere with certain assays and may need re-collection after fasting or lipid-clearing steps.

In clinical practice, recognizing lipemia is important because it can falsely elevate or interfere with many laboratory measurements (e.g., spectrophotometric readings) and may require repeat testing after a period of fasting or using alternative methods to control for lipids.

VT122 Hematology QUIZ on 2/3

What is the term for an opaque and milky look to serum or plasma that is most a result of high level of lipids (or fats) in blood, which can be avoid by fasting the patient prior to blood collection?

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