What is the first step in the process of embalming?

The first step in the process of embalming is the injection of arterial fluid. This step is critical as it involves the introduction of the embalming solution into the vascular system of the deceased. The arterial fluid typically contains a combination of formaldehyde, preservatives, and dyes, which work to preserve the body tissues, prevent decomposition, and enhance the appearance of the body for viewing.

Injecting arterial fluid allows for the distribution of the embalming chemicals throughout the body, which is essential for effective preservation. This process also helps in the even distribution of fluids, ensuring that all areas are adequately treated.

Other steps, such as cavity embalming or setting the features, occur later in the embalming process. Cavity embalming refers to the treatment of the thoracic and abdominal cavities after the arterial fluid has been injected, while setting the features involves manipulating the facial features for proper presentation. Calibration of instruments is a preparatory step but is not the primary action taken during the embalming procedure itself. Thus, the injection of arterial fluid is fundamental and is logically the first step in effective embalming practice.