What type of injection most efficiently provides hemostasis?

To understand why infiltration is the most effective injection technique for achieving hemostasis, it's important to consider how each method administers anesthetic.

Infiltration involves injecting local anesthetic directly into the area surrounding a specific tissue or site, which creates a localized zone of numbness while also constricting blood vessels in that area. This vasoconstriction leads to reduced blood flow, which results in less bleeding during procedures. Additionally, because the anesthetic is placed right where the surgical site is, it can help control bleeding more effectively than other techniques.

In contrast, nerve blocks aim to anesthetize a larger area by targeting specific nerves, providing broader pain control but may not directly impact hemostasis as effectively as infiltration. Field blocks cover larger areas by anesthetizing a field of tissue, yet they too may not target the bleeding precisely as infiltration does.

Recognizing these distinctions helps clarify why infiltration is the superior choice for efficiently achieving hemostasis, especially in settings where minimizing blood flow is crucial for surgical visibility and effectiveness.