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

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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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Factors Affecting the Risk of Infection01:26

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The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
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Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic01:26

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Healthcare-associated infections (HAIs) occur in a healthcare facility while a person receives care for another ailment. This category also includes work-related infections among healthcare staff.
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Healthcare Associated Infections II: Preventive Measures01:22

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Essential infection prevention measures are based on the knowledge of the infection chain, the modes of transmission in healthcare settings, and the use of the best practices in all healthcare settings. Compulsory public reporting of healthcare-associated infection rates is needed to allow individuals and the community to make informed choices regarding selecting a healthcare facility.
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Infections in the elderly.

R E Owen1, D M Allen

  • 1Department of Geriatric Medicine, Tan Tock Seng Hospital, Singapore.

Singapore Medical Journal
|June 1, 1991
PubMed
Summary
This summary is machine-generated.

Elderly individuals are more prone to infections due to weakened immune systems and chronic conditions. Careful antibiotic selection and early intervention are crucial for preventing and treating infections in older adults.

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Area of Science:

  • Gerontology
  • Infectious Diseases
  • Pharmacology

Background:

  • Infections represent a significant cause of illness and death in older adults.
  • Aging is associated with a decline in immune function (immunosenescence), increasing susceptibility to infections.
  • Chronic health conditions and environmental factors further predispose the elderly to infections.

Purpose of the Study:

  • To highlight the unique challenges in diagnosing and treating infections in the elderly.
  • To emphasize the importance of considering age-related changes in antibiotic pharmacokinetics.
  • To underscore the need for tailored preventive strategies against infectious complications.

Main Methods:

  • Review of existing literature on infections in the elderly.
  • Analysis of age-related alterations in immune response.
  • Examination of pharmacokinetic and pharmacodynamic changes of antibiotics in older populations.
  • Evaluation of preventive measures including vaccination and early intervention.

Main Results:

  • Infections in the elderly often manifest atypically, leading to delayed diagnosis and treatment.
  • Altered antibiotic absorption, metabolism, and excretion necessitate careful drug selection and dosing.
  • Potential interactions between antibiotics and common medications for chronic illnesses must be considered.
  • Preventive strategies are vital for reducing infectious morbidity and mortality.

Conclusions:

  • Effective management of infections in the elderly requires a comprehensive approach.
  • Understanding age-specific physiological changes is essential for optimizing antibiotic therapy.
  • Proactive measures, including vaccination and prompt intervention, are key to preventing infectious complications in this demographic.