Final answer:
Newborn dehydration can present with symptoms such as weight loss, decreased urine output, dry mouth and tongue, and a sunken fontanelle. It's important to seek medical attention if you suspect dehydration in a newborn.
Step-by-step explanation:
Dehydration refers to water loss from the body without adequate replacement. It can result from various causes such as heat exposure, diarrhea, vomiting, or excessive weight loss. Symptoms of newborn dehydration may include weight loss, decreased urine output, dry mouth and tongue, and a sunken fontanelle. These symptoms can range from mild to severe, depending on the extent of water loss. It's important to seek medical attention if you suspect your newborn is dehydrated.