NCLEX-RN (Registered Nurse) Practice Exam · Question
Earliest sign of dehydration in an infant is:
Decreased wet diapers (<6/day) is the earliest, easily-monitored sign. Sunken fontanelle and weight loss are later/severe signs.
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Question: Earliest sign of dehydration in an infant is:
Answer options:
- Sunken fontanelle ✅ Decreased urine output / fewer wet diapers
- Coma
- Severe weight loss
Correct answer: Decreased urine output / fewer wet diapers
Explanation: Decreased wet diapers (<6/day) is the earliest, easily-monitored sign. Sunken fontanelle and weight loss are later/severe signs.
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