What is the most appropriate treatment for a patient with an avulsion to his penis that is bleeding moderately?

Applying direct pressure with a dry, sterile dressing is the most appropriate treatment for a patient with a moderately bleeding avulsion on the penis. This approach focuses on controlling the bleeding while minimizing the risk of infection. Direct pressure helps to constrict blood vessels and allows for clot formation, which is critical in managing bleeding from an avulsed area.

In cases of avulsions and other traumatic injuries, maintaining cleanliness is essential; hence, using a sterile dressing is paramount. The use of a dry dressing provides a barrier against contaminants and reduces the chances of infection, which is especially important in sensitive areas like the genital region.

Moist dressings, while appropriate for certain types of wounds to protect exposed tissue, could create an environment that may lead to maceration of the surrounding skin and complications due to excess moisture. Additionally, while oxygen and pain management are important in the broader treatment of trauma, they do not directly address the immediate need for hemostasis in this scenario. Therefore, the focus should remain on applying pressure and ensuring the wound is appropriately dressed.