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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

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...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

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...
Bone Disorders01:29

Bone Disorders

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...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

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 not...
Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

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...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

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...

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Related Experiment Video

Updated: Jun 5, 2026

Identifying Frailty Using Point-of-Care Ultrasonography: Image Acquisition and Assessment
04:00

Identifying Frailty Using Point-of-Care Ultrasonography: Image Acquisition and Assessment

Published on: July 26, 2024

[Risk factors for hip fracture in elderly persons].

M Rossini1, A Mattarei, V Braga

  • 1Centro Regione Veneto Specializzato per l'Osteoporosi, U.O. Reumatologia, Azienda Ospedaliera Universitaria Integrata di Verona, Verona, Italia. maurizio.rossini@univr.it

Reumatismo
|January 22, 2011
PubMed
Summary
This summary is machine-generated.

Hip fracture patients over 60 often have vitamin D insufficiency and risk factors for falls. Interventions are needed to prevent deficiencies and manage osteoporosis risk in this population.

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Method and Instrumented Fixture for Femoral Fracture Testing in a Sideways Fall-on-the-Hip Position
06:58

Method and Instrumented Fixture for Femoral Fracture Testing in a Sideways Fall-on-the-Hip Position

Published on: August 17, 2017

Related Experiment Videos

Last Updated: Jun 5, 2026

Identifying Frailty Using Point-of-Care Ultrasonography: Image Acquisition and Assessment
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Identifying Frailty Using Point-of-Care Ultrasonography: Image Acquisition and Assessment

Published on: July 26, 2024

Method and Instrumented Fixture for Femoral Fracture Testing in a Sideways Fall-on-the-Hip Position
06:58

Method and Instrumented Fixture for Femoral Fracture Testing in a Sideways Fall-on-the-Hip Position

Published on: August 17, 2017

Area of Science:

  • Geriatric Medicine
  • Public Health
  • Nutritional Epidemiology

Context:

  • Hip fractures are a significant health concern in older adults, often linked to underlying risk factors.
  • Observational studies are crucial for understanding the prevalence of these factors in real-world clinical settings.

Purpose:

  • To determine the prevalence of environmental and individual risk factors in patients with recent hip fractures.
  • To assess the association between these factors and vitamin D levels in the studied population.

Summary:

  • This study analyzed 704 patients (over 60) with hip fractures, finding high rates of pre-fracture disability (58%), co-morbidities (84%), and fall risk factors (86%).
  • Vitamin D insufficiency (<75 nmol/l) was prevalent in 70% of patients, particularly in areas lacking deficiency prevention strategies (91%).
  • Only 17% of patients had received osteoporosis evaluation or treatment, highlighting a gap in care.

Impact:

  • Identifies critical risk factors associated with hip fractures in the elderly, including vitamin D deficiency and fall risks.
  • Underscores the need for community and case-finding interventions to identify high-risk individuals.
  • Emphasizes the importance of preventing vitamin D and calcium deficiencies and raising awareness of environmental fall hazards.