Related Experiment Video
Updated: Jul 12, 2026
12:36
In vitro tRNA Methylation Assay with the Entamoeba histolytica DNA and tRNA Methyltransferase Dnmt2 (Ehmeth) Enzyme
Published on: October 20, 2010
The patient chose to die: why?
1Family Medicine Department, University of New Mexico School of Medicine, Albuquerque 87131.
The Gerontologist
|October 1, 1991
Summary
Elderly patients
Area of Science:
- Geriatric Medicine
- Palliative Care
- Family Studies
Background:
- The decision of elderly patients to end their lives can be influenced by complex factors.
- Patient autonomy in end-of-life decisions may be intertwined with family dynamics.
- Understanding these dynamics is crucial for providing comprehensive care.
Purpose of the Study:
- To explore the interplay between elderly patients' end-of-life choices and family influences.
- To identify implicit interpersonal and overt personal reasons behind a patient's decision.
- To enhance the quality of care for both patients and their families during end-of-life discussions.
Main Methods:
- Analysis of case examples involving elderly patients and their families.
- Examination of undeliberate and deliberate clarification processes.
- Qualitative assessment of interpersonal and personal factors influencing end-of-life decisions.
Main Results:
- Elderly patients' end-of-life choices are often not solely independent decisions.
- Implicit family dynamics and explicit personal reasons significantly impact patient choices.
- Clarification processes, both intentional and unintentional, reveal underlying influences.
Conclusions:
- Optimal end-of-life care requires a holistic understanding of patient-family interactions.
- Addressing both personal and interpersonal factors is essential for supporting patients and families.
- Further research into the nuances of these decisions is warranted.
Related Concept Videos
01:33Carboxylic Acids to Methylesters: Alkylation using Diazomethane
Carboxylic acids react with diazomethane in an ether solvent via alkylation at the carboxylate oxygen atom to give methyl esters of the corresponding acid with excellent yields.
01:19Diazonium Group Substitution: –OH and –H
Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
01:11Aryldiazonium Salts to Azo Dyes: Diazo Coupling
The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the para position.
01:371° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism
Nitrous acid is a relatively weak and unstable acid prepared in situ by the reaction of sodium nitrite and cold, dilute hydrochloric acid. In an acidic solution, the nitrous acid undergoes protonation when it loses water to form a nitrosonium ion—an electrophile. Nitrous acid reacts with primary amines to give diazonium salts. The reaction is called diazotization of primary amines.
01:24Diels–Alder Reaction: Characteristics of Dienophiles
In a Diels–Alder reaction, the diene is usually an electron-rich system and acts as a nucleophile, whereas the dienophile is electron-deficient and functions as an electrophile. Much like the diene, the nature of the dienophile significantly impacts the outcome of the reaction.
Characteristics of Dienophiles
Generally, the best dienophiles are alkenes containing electron-withdrawing substituents such as carbonyl, nitrile, and nitro groups. The feasibility of a Diels–Alder reaction depends on...
Characteristics of Dienophiles
Generally, the best dienophiles are alkenes containing electron-withdrawing substituents such as carbonyl, nitrile, and nitro groups. The feasibility of a Diels–Alder reaction depends on...
01:27Nursing Ethical Principles II
Ethical principles are essential in guiding nurses to fulfill their responsibilities, focusing on the quality of nursing care and decision-making. These principles, including autonomy, beneficence, non-maleficence, justice, and fidelity, shape the ethical framework within healthcare settings.
Consider the following scenario, which illustrates how these principles are applied in the care of Mr. John, a fifty-year-old teacher diagnosed with metastatic liver cancer.
Initially, Mr. John's cancer...
Consider the following scenario, which illustrates how these principles are applied in the care of Mr. John, a fifty-year-old teacher diagnosed with metastatic liver cancer.
Initially, Mr. John's cancer...