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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

34
Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

47
Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

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In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
90
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

27
Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are...
27
Bone Disorders01:29

Bone Disorders

4.3K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
4.3K
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

29
Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...
29

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Related Experiment Video

Updated: Oct 20, 2025

Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
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Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults

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Unexplained falls in the elderly.

Martina Rafanelli1,2, Enrico Mossello1,2, Giuseppe D Testa1,2

  • 1Syncope Unit, Department of Geriatrics, Careggi Hospital, University of Florence, Florence, Italy.

Minerva Medica
|September 13, 2021
PubMed
Summary
This summary is machine-generated.

Falls in older adults are multifactorial, requiring comprehensive assessment of individual risks and environmental factors. Management of unexplained falls mirrors syncope protocols, emphasizing autonomic system investigation and advanced monitoring.

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Design and Analysis for Fall Detection System Simplification
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Area of Science:

  • Geriatrics
  • Gerontology
  • Emergency Medicine

Background:

  • Falls are a major geriatric syndrome impacting mortality, morbidity, and institutionalization.
  • Falls represent the leading cause of unintentional injury and frequent emergency department visits in older adults.
  • Post-fall physical and psychological issues can escalate dependency, disability, and healthcare costs.

Purpose of the Study:

  • To outline a diagnostic approach for falls in older adults.
  • To conduct a comprehensive multifactorial risk assessment for falls.
  • To examine existing evidence and identify gaps in fall prevention strategies.

Main Methods:

  • Multifactorial risk assessment including gait, balance, mobility, muscle strength, cognition, sensory function, and continence.
  • Evaluation of potential environmental hazards and a thorough review of medications.
  • Investigating the cardiovascular autonomic nervous system and considering implantable loop recorders for unexplained falls, aligning with syncope management guidelines.

Main Results:

  • The pathogenesis of falls is complex, resulting from interactions between individual susceptibility, high-risk activities, and environmental hazards.
  • History collection for falls in older adults is often complicated by retrograde amnesia and lack of witnesses.
  • Management of unexplained falls should follow syncope protocols, incorporating autonomic system evaluation.

Conclusions:

  • A comprehensive multifactorial risk assessment is crucial for diagnosing falls in older adults.
  • Effective fall prevention requires addressing individual vulnerabilities and environmental risks.
  • Further research is needed to fill evidence gaps in fall prevention strategies for the elderly.