Final answer:
An icteric sample can be identified by its visible yellow discoloration, which indicates excess bilirubin. A visual assessment for clarity and color is typically done by holding the sample up to the light.
Step-by-step explanation:
To recognize an icteric sample, one would typically look for a visible yellow discoloration, which indicates the presence of excess bilirubin in the sample. Icterus, or jaundice, occurs when bilirubin, a byproduct of hemoglobin breakdown, accumulates in tissues. In a clinical laboratory setting, serum or plasma that appears yellow to brownish-yellow would be considered icteric.
To determine if a sample is icteric, you can perform a visual assessment by placing the sample in a clear container and holding it up to the light to check for clarity and color. If the sample has a distinct yellow color, this is indicative of icterus. In medical laboratories, spectroscopic analysis may also be employed to quantitatively measure the level of bilirubin present in the sample.