**Core Concept:** The correct procedure to follow when a biological sample, like blood, is spilled during collection.

**Why the Correct Answer is Right:**
The correct answer is to clean the spilled blood and then continue with sample collection. This ensures that the sample remains uncontaminated and maintains its integrity for testing purposes. In the context of clinical laboratory testing, proper sampling procedures are crucial to obtain accurate and reliable results.

**Why Each Wrong Option is Incorrect:**
A. Cleaning the floor only: This is incorrect because the spillage is not just on the floor but also on the collection equipment (e.g., gloves, swabs, containers). Therefore, a thorough cleaning of the entire contaminated area is necessary.
B. Discarding the spill and starting a new procedure: Discarding the spill could lead to a waste of resources and may result in an incorrect test result if the sample is contaminated.
C. Collecting a new sample: This may not be possible or practical, especially for non-invasive tests, and could lead to a waste of time and resources, as well as potential contamination risk.
D. Collecting the sample and proceeding without cleaning: This would compromise the accuracy and reliability of the test result due to contamination.

**Clinical Pearl / High-Yield Fact:**
Properly cleaning the spillage before proceeding with sample collection is essential in maintaining the quality and reliability of laboratory test results. This ensures accurate diagnosis, treatment, and patient care.

**Correct Answer:** C. Clean the contaminated area and proceed with sample collection.