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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

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

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

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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...
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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...
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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 Absorption01:22

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

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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...
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Related Experiment Video

Updated: Oct 21, 2025

Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit
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Updated Inventory and Projected Requirements for Specialist Physicians in Geriatrics.

Monisha Basu1, Tracy Cooper2, Kelly Kay3

  • 1University of Toronto Faculty of Medicine, Toronto, ON.

Canadian Geriatrics Journal : CGJ
|September 6, 2021
PubMed
Summary

Canada faces a growing gap in geriatric physicians needed for its aging population. Projections show this shortage will worsen by 2030, highlighting the need for more recruitment and integrated care models.

Keywords:
Canadacare of the elderlygeriatric specialistgeriatricianinventoryphysician human resourcesspecialized geriatric servicesworkforce projection

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Area of Science:

  • Geriatric Medicine
  • Health Workforce Planning
  • Population Aging

Background:

  • Canada's population aged 65+ is rapidly increasing.
  • This demographic shift necessitates greater demand for specialized geriatric services (SGS).
  • Accurate physician resource planning is crucial to meet future healthcare needs.

Purpose of the Study:

  • To update the Canadian Geriatrics Society physician resource inventory.
  • To project the supply of geriatricians and Care of the Elderly (COE) physicians for 2025 and 2030.
  • To assess the physician resource gap in specialized geriatric services.

Main Methods:

  • Determined current numbers and full-time equivalents (FTEs) of geriatricians and COE physicians in SGS.
  • Estimated future FTE counts by factoring in retirements and new trainees.
  • Utilized a benchmark ratio of 1.25 physicians per 10,000 population aged 65+ to predict requirements.

Main Results:

  • From 2011 to 2019, the number of geriatricians rose from 276 to 376 (235.8 to 319.6 FTEs).
  • The number of COE physicians increased from 128 to 354 (89.9 to 115.5 FTEs).
  • Despite increases, physician supply has not matched the growth of the 65+ population, widening the existing gap.

Conclusions:

  • The physician supply deficit in geriatric care is projected to expand by 2025 and 2030.
  • Strategies to mitigate this include enhanced recruitment, interdisciplinary team-based care, improved funding, and integrating COE physicians into SGS.
  • A disparity exists in specialist physician resources for the 65+ population compared to pediatric specialists in Canada.