<prompt> Severe dehydration in an older child occurs when the fluid loss is1 of body weight4 of body weight6 of body weight9 of body weight  <response>: Signs of mild or moderate dehydration include: Thirst. Dry or sticky mouth. Signs of severe dehydration include: Not peeing or having very dark yellow pee. Very dry skin. Feeling dizzy. Rapid heabeat. Rapid breathing. Sunken eyes. Sleepiness, lack of energy, confusion or irritability. Fainting. Reference: GHAI Essential pediatrics, 8th edition 