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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

376
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...
376
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

336
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...
336
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

365
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...
365
Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

349
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...
349
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption01:22

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

830
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...
830
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

374
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...
374

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Related Experiment Video

Updated: Apr 20, 2026

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
08:35

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion

Published on: May 26, 2022

4.5K

Hypernatremia in the geriatric population.

Maulin K Shah1, Biruh Workeneh2, George E Taffet3

  • 1Department of Internal Medicine, Baylor College of Medicine, Houston, TX, USA.

Clinical Interventions in Aging
|November 28, 2014
PubMed
Summary
This summary is machine-generated.

Elderly hypernatremia (high sodium) is common due to aging and medications. This study emphasizes considering non-neglect causes first to ensure timely diagnosis and treatment in older adults.

Keywords:
geriatrichypernatremiasodium

Related Experiment Videos

Last Updated: Apr 20, 2026

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
08:35

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion

Published on: May 26, 2022

4.5K

Area of Science:

  • Geriatric Medicine
  • Internal Medicine
  • Nephrology

Background:

  • Hypernatremia is a prevalent condition in the geriatric population, linked to increased illness and death.
  • Age-related physiological changes, including diminished thirst, impaired kidney function, and reduced body water, predispose older adults to hypernatremia.
  • Certain medications can worsen this predisposition.

Purpose of the Study:

  • To highlight the importance of considering alternative causes of hypernatremia in nursing home residents.
  • To review the causes and management of hypernatremia in the elderly.
  • To emphasize that neglect should be a diagnosis of exclusion.

Main Methods:

  • Case illustration of hypernatremia in a nursing home resident.
  • Review of existing literature on geriatric hypernatremia.
  • Analysis of diagnostic and management considerations.

Main Results:

  • Hypernatremia in nursing homes can be misattributed to neglect without considering other factors.
  • Age-related physiological changes and medications are significant contributors.
  • Prompt consideration of alternative etiologies is crucial for appropriate management.

Conclusions:

  • Hypernatremia in the elderly requires careful evaluation beyond assuming neglect.
  • Identifying non-avoidable causes prevents diagnostic delays and ensures effective treatment.
  • A systematic approach is essential for managing hypernatremia in older adults.