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Drug Dosing: Infants and Children01:29

Drug Dosing: Infants and Children

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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...
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Nursing Assessment of the Genitourinary System II: Inspection and Palpation01:26

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The nursing assessment of the genitourinary (GU) system involves a systematic inspection and palpation to identify abnormalities in the kidneys, bladder, and surrounding structures.InspectionMouth: Inspect for signs of kidney dysfunction, such as stomatitis (inflammation of the mouth) and ammonia breath, which may occur in advanced kidney disease due to the buildup of urea, breaking down into ammonia.Skin: Check for pallor, which could indicate anemia caused by kidney disease. Look for...
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Acute Kidney Injury VI: Nursing Management01:22

Acute Kidney Injury VI: Nursing Management

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Acute Kidney Injury (AKI) results in an inability to maintain fluid, electrolyte, and acid-base balance. Effective nursing management is critical in improving patient outcomes and includes comprehensive patient assessment and targeted interventions.Comprehensive Patient AssessmentA detailed history collection is essential, focusing on any recent infections, nephrotoxic medication use, or chronic conditions such as hypertension and diabetes that may contribute to AKI. During the physical...
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Disorder of Water Balance01:29

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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:
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Regulation of Water Intake01:25

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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...
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Assessing Body Temperature - Rectal01:27

Assessing Body Temperature - Rectal

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Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
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Updated: Dec 20, 2025

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test
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¿Está deshidratado este niño?

Michael J Steiner1, Darren A DeWalt, Julie S Byerley

  • 1Department of Pediatrics, University of North Carolina School of Medicine, and Robert Wood Johnson Clinical Scholars Program, Chapel Hill 27599-7593, USA.

JAMA
|June 10, 2004
PubMed
Resumen
Este resumen es generado por máquina.

La evaluación precisa de la deshidratación en los niños se basa en el tiempo de recarga capilar, la turgor de la piel y los patrones respiratorios. Si bien estos signos mejoran el diagnóstico, otras pruebas tienen una utilidad limitada para una evaluación precisa de la deshidratación.

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Área de la Ciencia:

  • La pediatría es la medicina de los niños.
  • Medicina de emergencia Medicina de emergencia.
  • Precisión en el diagnóstico.

Sus antecedentes:

  • La evaluación rápida y precisa de la deshidratación en bebés y niños pequeños es fundamental para el tratamiento adecuado y la disposición del paciente.
  • La evaluación clínica de la gravedad de la deshidratación guía las intervenciones médicas inmediatas.

Objetivo del estudio:

  • Revisar sistemáticamente la precisión y exactitud de varios signos clínicos, síntomas y pruebas de laboratorio básicas utilizadas para evaluar la deshidratación en pacientes pediátricos.
  • Determinar la utilidad diagnóstica de los hallazgos individuales y combinados para evaluar la deshidratación en niños.

Principales métodos:

  • Una búsqueda exhaustiva de la literatura de MEDLINE (PubMed), Cochrane Library y otras fuentes identificó 1561 artículos potenciales.
  • Se revisaron veintiséis estudios con datos originales sobre los hallazgos diagnósticos de deshidratación en niños de 1 mes a 5 años.
  • En el análisis final se incluyeron trece estudios que cumplían con estrictos criterios de precisión diagnóstica (proporciones de probabilidad).

Principales resultados:

  • El tiempo de recarga capilar anormal (proporción de probabilidad [LR], 4.1), la turgor de la piel (LR, 2.5) y el patrón respiratorio (LR, 2.0) son los signos individuales más predictivos para la deshidratación del 5%.
  • Las combinaciones de signos del examen clínico demuestran una precisión significativamente mayor en la predicción de la deshidratación en comparación con los signos individuales.
  • Los datos históricos de los pacientes y las pruebas de laboratorio ofrecen sólo un valor moderado en la evaluación de la gravedad de la deshidratación.

Conclusiones:

  • La evaluación clínica inicial para la deshidratación en niños pequeños debe priorizar el tiempo de recarga capilar, la turgor de la piel y el patrón respiratorio, junto con combinaciones de otros signos.
  • La imprecisión e inexactitud inherentes a los métodos de diagnóstico actuales limitan la capacidad de los médicos para cuantificar con precisión el grado de deshidratación.