What is the procedure called where injection and drainage occur at different locations?

• A. Dual injection
• B. Split injection
• C. Simultaneous injection
• D. One-point injection

Answer: (B)

The procedure where injection and drainage occur at different locations is referred to as split injection. In this technique, the embalmer injects arterial solution into one location (usually a major artery like the carotid or femoral) while simultaneously allowing the blood and other fluids to be drained from a different site (such as a vein). This method is often utilized to ensure more effective distribution of the embalming solution throughout the body and to promote better fluid drainage, especially in cases where body positioning or condition might hinder the efficacy of one-point techniques.

Split injection can enhance the overall preservation process, as it allows for better control over the embalming fluid's exposure to different tissues, improving the outcome of the embalming process. This contrasts with dual injection, where two injection sites are used but typically does not involve separate drainage. Simultaneous injection involves injecting and draining at the same time from the same point, and one-point injection uses a single site for both injection and drainage, which may limit the effectiveness in certain conditions. Therefore, split injection is crucial for optimizing the embalming procedure in complex cases.