Ultima Online Protocol :: HP Health
Packet # Packet Name Length Client Server Obsolete
0xA1 HP Health 0x0009 X X
Data Type Description
byte 0xA1 The packet number.
uint Serial The target character's serial.
ushort Maximum The maximum amount of hit points.
ushort Current The current amount of hit points.

Packet Description:
This is sent to update a character's hitpoints.