What is crucial to establish before initiating the use of a mechanical injector for body injections?

Establishing the pressure is crucial before using a mechanical injector for body injections because it directly affects the efficiency and effectiveness of the injection process. The pressure determines how forcefully the embalming fluid is introduced into the vascular system. If the pressure is inadequate, the fluid may not penetrate the tissues adequately or reach all areas that require distribution. Conversely, excessive pressure can cause tissue damage and fluid leakage, leading to poor outcomes in the embalming process.

In practice, understanding the pressure also involves recognizing the anatomy and condition of the deceased, as this can impact how the fluid disperses through the vascular system. A proper balance in pressure allows for consistent distribution of the embalming fluid, which is essential for achieving the desired preservation and appearance of the body.