Which of the following symptoms suggest that the child has severe dehydration?

AIIMS Bhopal NO - 2018 (Shift-1st)

Child Health Nursing (Pediatrics)

Easy

Appeared in: AIIMS Bhopal NO - 2018 (Shift-1st)

Explanation

Lethargy or unconsciousness is a cardinal sign of severe dehydration, indicating a fluid deficit typically exceeding 10% of the child's body weight.
This altered mental status results from severe hypovolemia (low blood volume), which leads to inadequate cerebral perfusion (blood flow and oxygen to the brain).
According to WHO guidelines, a decreased level of consciousness is a key criterion for classifying dehydration as severe.
This state is a medical emergency that requires immediate intravenous fluid resuscitation to prevent hypovolemic shock and permanent neurological damage.

Option A: A child who drinks eagerly is still conscious and able to respond to the sensation of thirst. This is a classic sign of mild to moderate dehydration.
Option B: Irritability is a sign of mild to moderate dehydration. The child is uncomfortable and distressed due to fluid loss but has not yet progressed to a state of depressed consciousness.
Option C: Restlessness, similar to irritability, is characteristic of the early to moderate stages of dehydration as the body responds to the initial stress of fluid loss.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Clinical assessment of dehydration severity in children as background academic context rather than a clinical decision trigger.
For a nurse, recognizing the transition from irritability to lethargy is a critical assessment skill. It signals the progression from moderate to severe dehydration, which is a life-threatening emergency.
A lethargic or unconscious child is at high risk for aspiration and cannot safely take oral fluids. The nursing priority shifts from oral rehydration to securing IV access for rapid fluid resuscitation.
What if? If the child was irritable and had sunken eyes but was still drinking eagerly, the condition would be classified as moderate dehydration. The priority nursing action would be to administer Oral Rehydration Solution (ORS) and monitor closely, rather than initiating immediate IV therapy.

How to Approach the Question

Identify the key term in the question: 'severe dehydration'. This requires you to differentiate it from milder forms.
Recall the clinical stages of dehydration (mild, moderate, severe) and their corresponding signs and symptoms.
Evaluate each option to determine which stage of dehydration it represents.
Analyze the first three options: 'drinks water eagerly,' 'irritable,' and 'restless.' These all describe a child who is conscious and reacting to discomfort, which is typical of mild-to-moderate dehydration.
Analyze the last option: 'Lethargic or unconscious.' This indicates a significant change in mental status and a depressed level of consciousness, which is a hallmark of the most advanced and dangerous stage.
Select the option that aligns with the definition of severe dehydration, which involves systemic decompensation and end-organ effects like altered brain function.

Concept Tested & Keywords

Concept Tested: Clinical assessment of dehydration severity in children.
Stem keywords: child, severe dehydration, symptoms
Lead-in keywords: Which
Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.

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