For glucose estimation in blood, the mode of transport from a PHC to lab:
**Core Concept**
Glucose estimation in blood typically involves transporting blood samples from primary health centers (PHCs) to laboratories for analysis. The mode of transport is crucial to ensure the integrity and accuracy of the glucose measurement.
**Why the Correct Answer is Right**
The correct mode of transport for glucose estimation in blood is on ice. This is because glucose is a heat-sensitive molecule that can undergo glycolysis, leading to inaccurate results. When blood samples are transported on ice, the enzymes responsible for glycolysis are inhibited, preserving the glucose levels in the sample. Additionally, ice transport helps to prevent bacterial growth and contamination, ensuring the sample remains sterile.
**Why Each Wrong Option is Incorrect**
**Option A:** does not provide a clear mode of transport, making it an incorrect choice.
**Option B:** does not specify a method for maintaining the sample at a low temperature, which is essential for glucose estimation.
**Option C:** may not be feasible or practical for transporting blood samples from PHCs to laboratories.
**Clinical Pearl / High-Yield Fact**
It's essential to transport blood samples on ice to prevent glycolysis and ensure accurate glucose measurement. This can be remembered by the mnemonic "ICE" - Inhibits Enzymes and Contamination, Ensuring accuracy.
**Correct Answer: D. On ice**