Maintaining a specific temperature range for urine samples collected for substance screening is a critical aspect of ensuring test validity. The temperature must be within a certain range, typically 90-100F (32-38C), to prevent invalidation due to suspected tampering or improper handling. If the specimen falls outside this temperature range upon arrival at the laboratory, it may be rejected, requiring a new sample collection.
Accurate temperature maintenance is vital because it helps confirm the sample’s authenticity and represents the donor’s physiological state at the time of collection. Deviations may indicate that the sample has been substituted, diluted, or otherwise manipulated.Historically, temperature validation procedures have evolved alongside technological advancements in drug screening methodologies. These procedures now form an integral part of standardized drug testing protocols implemented across various industries and regulatory bodies.
