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Related Concept Videos

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 (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
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Causes:
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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

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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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Related Experiment Video

Updated: Dec 20, 2025

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test
10:21

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Is this child dehydrated?

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
Summary
This summary is machine-generated.

Accurate dehydration assessment in children relies on capillary refill time, skin turgor, and respiratory patterns. While these signs improve diagnosis, other tests have limited utility for precise dehydration evaluation.

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Area of Science:

  • Pediatrics
  • Emergency Medicine
  • Diagnostic Accuracy

Background:

  • Rapid and accurate assessment of dehydration in infants and young children is critical for appropriate treatment and patient disposition.
  • Clinical evaluation of dehydration severity guides immediate medical interventions.

Purpose of the Study:

  • To systematically review the precision and accuracy of various clinical signs, symptoms, and basic laboratory tests used to evaluate dehydration in pediatric patients.
  • To determine the diagnostic utility of individual and combined findings for assessing dehydration in children.

Main Methods:

  • A comprehensive literature search of MEDLINE (PubMed), Cochrane Library, and other sources identified 1561 potential articles.
  • Twenty-six studies with original data on diagnostic findings for dehydration in children aged 1 month to 5 years were reviewed.
  • Thirteen studies meeting stringent criteria for diagnostic accuracy (likelihood ratios) were included in the final analysis.

Main Results:

  • Abnormal capillary refill time (Likelihood Ratio [LR], 4.1), skin turgor (LR, 2.5), and respiratory pattern (LR, 2.0) are the most predictive individual signs for 5% dehydration.
  • Combinations of clinical examination signs demonstrate significantly higher accuracy in predicting dehydration compared to individual signs.
  • Historical patient data and laboratory tests offer only moderate value in the assessment of dehydration severity.

Conclusions:

  • Initial clinical assessment for dehydration in young children should prioritize capillary refill time, skin turgor, and respiratory pattern, alongside combinations of other signs.
  • The inherent imprecision and inaccuracy of current diagnostic methods limit clinicians' ability to precisely quantify the degree of dehydration.