Final answer:
Plasma that appears red tinged in a spun microhematocrit tube is referred to as icteric. Therefore, the correct option is a. icteric.
Step-by-step explanation:
When plasma in a spun microhematocrit tube appears red tinged, it is indicative of icteric plasma. This discoloration is primarily due to an increased concentration of bilirubin, a yellow pigment resulting from the breakdown of red blood cells. The icteric appearance suggests elevated levels of bilirubin in the plasma, often associated with liver dysfunction or hemolysis.
Icteric plasma is distinguishable by its yellowish tint, and this observation aids in clinical diagnostics. Bilirubin absorbs light in the blue spectrum, contributing to the red coloration observed in the spun microhematocrit tube. Monitoring and interpreting these color changes play a crucial role in identifying underlying health conditions, allowing healthcare professionals to make informed decisions regarding patient care.
Understanding the etiology of icteric plasma is essential for healthcare practitioners in various medical fields, as it provides valuable insights into the patient's physiological state. Additionally, this knowledge aids in the accurate interpretation of laboratory results, facilitating timely interventions and appropriate treatments for the patient.