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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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Cardiomyopathy VII: Pre and Post Operative Nursing Management01:28

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Patients with hypertrophic cardiomyopathy (HCM) and left ventricular outflow tract (LVOT) obstruction who remain symptomatic despite optimal medical therapy may undergo a septal myectomy (Morrow procedure). This procedure involves excising a portion of the hypertrophied septum below the aortic valve using a heart-lung machine to improve blood flow through the LVOT. Effective preoperative and postoperative nursing management ensures successful patient outcomes, minimizes complications, and...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

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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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Pre-Procedural Guidelines for Assessing Blood Pressure01:10

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Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
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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

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[Preoperative assessment in elderly patients].

M Humbert, E Rubli, Major K

    Revue Medicale Suisse
    |December 25, 2014
    PubMed
    Summary

    Preoperative assessment for older adults must include screening for geriatric syndromes like cognitive and functional impairments. Early detection and intervention can significantly reduce surgical complication risks.

    Area of Science:

    • Geriatric Medicine
    • Surgical Patient Assessment

    Background:

    • Aging leads to physiological changes and comorbidities impacting surgical tolerance.
    • Standard pre-operative evaluations may not adequately address risks in older patients.

    Observation:

    • Common geriatric syndromes include cognitive, gait and balance, nutritional, and functional impairments.
    • These impairments identify older patients at increased risk for surgical complications.

    Findings:

    • Systematic screening for geriatric syndromes is crucial in pre-operative assessments.
    • Interventions such as physical therapy and nutritional support can mitigate risks.

    Implications:

    • Optimizing pre-operative assessment can reduce postoperative morbidity in the elderly.

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  • Proactive management of geriatric syndromes improves surgical outcomes for older adults.