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Related Concept Videos

Regulation of Water Intake01:25

Regulation of Water Intake

Osmolality refers to the number of solute particles per kilogram of solvent in a solution. Plasma osmolality specifically indicates the total number of solute particles per kilogram of water in blood plasma. This value reflects the body's hydration status and is tightly regulated through mechanisms controlling water intake and output. While water consumption is a conscious decision, the body has intrinsic regulatory systems to maintain fluid balance. Dehydration, a state of water deficit...
Disorder of Water Balance01:29

Disorder of Water Balance

Water balance disorders are medical conditions that occur when there is a deviation from the body's water volume or osmolarity, disrupting normal homeostasis and leading todehydration, hypotonic hydration, hyperhydration, edema, or water intoxication.
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
Drug Dosing: Infants and Children01:29

Drug Dosing: Infants and Children

Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
Pharmacokinetics in Pediatric Patients: Drug Distribution01:17

Pharmacokinetics in Pediatric Patients: Drug Distribution

Drug distribution in the pediatric population exhibits unique challenges and considerations due to the physiological differences between children, particularly neonates and infants, and adults. A crucial aspect of pediatric pharmacology is understanding how these differences impact the pharmacokinetics of various drugs, necessitating age-specific dosing strategies to ensure efficacy and safety.Neonates and infants have a higher total body water content, ~75%–90% of their body weight, compared...
Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
Diabetes Insipidus II: Pathophysiology01:22

Diabetes Insipidus II: Pathophysiology

Normally, water balance is maintained through three interconnected mechanisms: the hypothalamic thirst center, the synthesis and release of antidiuretic hormone (ADH, or vasopressin), and the kidneys' responsiveness to this hormone. ADH is synthesized in the hypothalamus, released from the posterior pituitary, and acts on the distal nephron, allowing water reabsorption and concentrated urine production.Diabetes Insipidus and Its TypesIn diabetes insipidus (DI), this regulatory system is...

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Related Experiment Video

Updated: Jun 22, 2026

Intravenous Injections in Neonatal Mice
05:17

Intravenous Injections in Neonatal Mice

Published on: November 11, 2014

[Hypernatremia in newborns].

Ester Garne1

  • 1Børneafdelingen, Kolding Sygehus, DK-6000 Kolding. ega@ks.vejleamt.dk

Ugeskrift for Laeger
|January 14, 2003
PubMed
Summary
This summary is machine-generated.

Severe hypernatremia (high sodium levels) can occur in newborns due to breastfeeding malnutrition. Regular professional weight checks are recommended to prevent this serious condition in infants.

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Last Updated: Jun 22, 2026

Intravenous Injections in Neonatal Mice
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Published on: November 11, 2014

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Area of Science:

  • Neonatal Medicine
  • Pediatrics
  • Endocrinology

Background:

  • Breastfeeding is encouraged for newborns, but potential complications like dehydration and hypernatremia must be monitored.
  • Early detection of inadequate milk intake is crucial for preventing adverse health outcomes in infants.

Observation:

  • Two cases of severe hypernatremia (sodium 160-164 mmol/l) in healthy, term newborns are presented.
  • Infants experienced significant weight loss (18% and 22%) by 7-9 days of age.
  • Mothers reported inability to breastfeed effectively upon hospital admission.

Findings:

  • The newborns presented with severe hypernatremia and dehydration, linked to insufficient breastfeeding.
  • Oral rehydration was the primary treatment, with infants discharged bottle-feeding.
  • Delayed infant weighing missed early signs of malnutrition and dehydration.

Implications:

  • Routine professional assessment and weighing of newborns in the first week of life are critical.
  • This proactive approach can prevent breastfeeding malnutrition and severe hypernatremia.
  • Early identification and intervention are key to ensuring infant health and successful breastfeeding.