Related Experiment Video
Updated: Jan 28, 2026

A Practical Guide to Phylogenetics for Nonexperts
Published on: February 5, 2014
Four Potentially Practice-Changing Articles From 2018
1McMaster University Hamilton Health Sciences, St. Peter's Hospital Site, Hamilton, Ontario, Canada.
Abstract:
Four key articles published in 2018 have been selected to represent clinical situations where recent evidence may prompt changes in practice relevant to the nursing home population. There is no evidence of benefit for levothyroxine replacement in mild subclinical hypothyroidism. Duloxetine may be considered as an option for the treatment of pain and stiffness in osteoarthritis of the knees. Supplemental oxygen in the absence of hypoxemia is unnecessary and potentially harmful. Methylphenidate has modest benefit in treating apathy in dementia. For each subject, a brief review of the pertinent article is followed by a "bottom line" recommendation.
Insights
Recent evidence suggests levothyroxine is not beneficial for mild subclinical hypothyroidism. Duloxetine may help osteoarthritis pain, while supplemental oxygen without hypoxemia is harmful. Methylphenidate offers modest benefits for dementia-related apathy.
Area of Science:
- Geriatric Medicine
- Clinical Practice Guidelines
- Evidence-Based Medicine
Background:
- Nursing home residents often present complex clinical scenarios.
- Recent studies published in 2018 offer new insights into common conditions affecting this population.
- Clinical practice guidelines require regular updates based on emerging evidence.
Purpose of the Study:
- To review key 2018 publications relevant to nursing home clinical practice.
- To provide evidence-based recommendations for managing specific conditions in older adults.
- To highlight potential changes in practice for healthcare providers in long-term care settings.
Main Methods:
- Systematic review of four selected articles from 2018.
- Analysis of evidence for levothyroxine in subclinical hypothyroidism.
- Evaluation of duloxetine for osteoarthritis knee pain and stiffness.
- Assessment of supplemental oxygen use in non-hypoxemic patients.
- Review of methylphenidate for apathy in dementia.
Main Results:
- No evidence supports levothyroxine for mild subclinical hypothyroidism.
- Duloxetine shows potential for managing knee osteoarthritis pain and stiffness.
- Supplemental oxygen is not indicated and may be harmful when hypoxemia is absent.
- Methylphenidate demonstrates modest efficacy in treating apathy associated with dementia.
Conclusions:
- Levothyroxine replacement is not recommended for mild subclinical hypothyroidism.
- Duloxetine can be considered for osteoarthritis knee pain management.
- Avoid supplemental oxygen in patients without hypoxemia.
- Methylphenidate may be a useful option for dementia-related apathy.
More Related Videos
Related Concept Videos
Global Climate Change
Work Done During Volume Change
Consider a gas confined to a cylinder fitted with a movable piston at one end. If the gas expands from volume V1 to volume V2, it exerts a force on the piston, such that the piston moves by a distance dr.
The work done by the gas on the piston can be expressed as
Net Change Theorem
Standard Entropy Change for a Reaction
Le Chatelier's Principle: Changing Temperature
To understand this phenomenon, consider the elementary reaction:
Application of Rates of Change

