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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...
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 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...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption01:22

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...
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...
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: May 24, 2026

Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing
06:58

Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing

Published on: January 24, 2020

Current considerations about the elderly and firearms.

Brian Mertens1, Susan B Sorenson

  • 1Health and Societies program, University of Pennsylvania, Philadelphia, PA 19104, USA.

American Journal of Public Health
|March 7, 2012
PubMed
Summary
This summary is machine-generated.

Older adults own firearms at high rates and have the highest firearm suicide rates. Cognitive and physical changes in seniors can impact safe gun handling, posing risks, especially for those with dementia.

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Area of Science:

  • Public Health
  • Gerontology
  • Firearm Safety

Background:

  • Over 17 million adults aged 65+ in the US own firearms.
  • This demographic exhibits the highest rates of firearm suicide.
  • New firearms are marketed towards older adults.

Purpose of the Study:

  • To examine the public health implications of firearm ownership among older adults.
  • To highlight risks associated with firearm access in the elderly population.
  • To consider the impact of cognitive and physical changes on firearm safety in seniors.

Main Methods:

  • Review of existing data on firearm ownership among older adults.
  • Analysis of suicide rates by firearm in the elderly population.
  • Discussion of cognitive and physical factors affecting safe firearm use.

Main Results:

  • Older adults have the highest firearm suicide rates.
  • Cognitive decline (e.g., dementia) increases risks for individuals and caregivers.
  • Market trends show new firearms designed for the elderly.

Conclusions:

  • Firearm access for older adults presents significant public health concerns.
  • Cognitive and physical changes necessitate careful consideration of firearm safety in this demographic.
  • The growing elderly population warrants attention to firearm policies and safe storage practices.