American Society for Clinical Pathology (ASCP) Histotechnician Certification Practice Exam 2026 - Free Histotechnician Certification Practice Questions and Study Guide

The recommended storage condition for paraffin blocks is at room temperature, away from direct sunlight. Paraffin blocks are typically stable at room temperature and should be kept in a controlled environment to prevent degradation or alterations in their composition. Storing them away from direct sunlight is crucial because prolonged exposure to UV radiation can cause deterioration of the paraffin, affecting the quality of subsequent histological sections.

Temperature extremes, such as refrigeration or freezing, are not suitable as they can lead to changes in the physical properties of the paraffin, potentially causing it to become brittle or difficult to section. This can hinder the histotechnician's ability to prepare high-quality sections for microscopic examination. Proper care and storage conditions are essential to maintain the integrity of paraffin blocks for accurate histological analysis.