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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 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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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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Bone Disorders01:29

Bone Disorders

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

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

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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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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

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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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Related Experiment Video

Updated: Mar 22, 2026

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[Iron deficiency in the elderly].

Tuur Helsen1, Etienne Joosten2

  • 1afdeling geriatrie, Universitaire Ziekenhuizen Leuven, Grimdestraat 13, 3000, Leuven, België. tuurhelsen@gmail.com.

Tijdschrift Voor Gerontologie En Geriatrie
|April 24, 2016
PubMed
Summary

Anemia in the elderly, often due to iron deficiency or chronic disease, requires accurate diagnosis. Newer tests offer improved insights beyond traditional serum ferritin for better patient outcomes.

Keywords:
AnemiaElderlyFerritinHepcidinIron-deficieny

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Area of Science:

  • Geriatric Medicine
  • Hematology
  • Internal Medicine

Background:

  • Anemia is prevalent in elderly individuals, particularly those institutionalized or hospitalized.
  • Common causes include iron-deficiency anemia and anemia of chronic disease.
  • Traditional diagnostic markers like serum ferritin have limitations in sensitivity and specificity.

Purpose of the Study:

  • To highlight the importance of accurate anemia diagnosis in the geriatric population.
  • To discuss limitations of current diagnostic methods.
  • To introduce novel diagnostic assays for iron homeostasis.

Main Methods:

  • Review of common etiologies of anemia in elderly patients.
  • Evaluation of diagnostic assays including serum ferritin, serum hepcidin, serum transferrin receptor, and reticulocyte hemoglobin equivalent.
  • Discussion of anemia definition and the need for individualized diagnostic thresholds.

Main Results:

  • Iron-deficiency anemia and anemia of chronic disease are leading causes in the elderly.
  • Serum ferritin has low sensitivity and moderate specificity for diagnosing anemia in this population.
  • Emerging assays like serum hepcidin and reticulocyte hemoglobin equivalent show promise for improved diagnosis.

Conclusions:

  • Accurate diagnosis and treatment of anemia in the elderly are crucial due to its link with morbidity and mortality.
  • Novel diagnostic tools are needed to overcome limitations of traditional assays.
  • Hemoglobin thresholds for investigation should consider the patient's functional status.