The very specific signs of severe dehydration are... a. Lack of urine output b. Pale skin c. Rapid pulse d. Mild thirst

The very specific signs of severe dehydration typically include: a. Lack of urine output c. Rapid pulse While pale skin and mild thirst can be indicators of dehydration, they are not necessarily specific to severe dehydration. Severe dehydration often leads to greatly reduced urine output and is associated with a rapid pulse due to the body's attempt to maintain blood pressure and circulation.