Percentage Weight Loss In Newborns Calculator


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Dehydration in newborns

Dehydration is a significant loss of body water and, to varying degrees, electrolytes. Symptoms include thirst, lethargy, dry mucous membranes, oliguria and, when dehydration worsens, tachycardia, hypotension and shock. Diagnosis is based on history and physical examination. Treatment is based on oral or IV restoration of hydro-electrolyte losses.

Dehydration results from

Increased fluid loss

Decreased fluid intake

The two previous means

The most common cause of excessive fluid loss is gastrointestinal, due to vomiting and/or diarrhea (eg, gastroenteritis). Other causes are renal (eg, diabetic ketoacidosis), cutaneous (eg, excessive sweating, heartburn), and 3rd sector loss (eg, bowel lumen if obstructed or intestinal ileus).

Decreased fluid intake is common in mild illnesses such as pharyngitis or in serious illnesses of any kind. Decreased fluid intake is particularly problematic when the child vomits or when fever and/or tachypnea increase transepidermal discharge. It can also be the result of negligence.

Percentage Weight Loss In Newborns Calculator

The percentage of weight loss in newborns is used to estimate an infant's dehydration. Weight loss percentage indicates:

        * ≤ 5%: slight dehydration.

         * > 5% and < 10%: moderate dehydration.

         * ≥ 10%: severe dehydration.