进行定量化口罩适合性测试:应用细节和影响因素
Xiaodan Xu1,2, Liangliang Zhao1,2, Yong Zhu3
1Jiangsu Provincial Center for Disease Control and Prevention, Institute of Occupational Disease Prevention, Nanjing, China.
Frontiers in public health
|July 31, 2023
概括
完整的呼吸器面罩比半面罩提供更好的保护,特别是对于女性. 凝结核计数 (CNC) 是一种比控制负压 (CNP) 更有效的适合测试方法.
科学领域:
- 职业健康和安全问题 职业健康和安全问题
- 呼吸系统保护 呼吸系统保护
- 工业卫生 工业卫生
背景情况:
- 呼吸器对于减少暴露在危险颗粒物中至关重要.
- 适应性测试是确保呼吸器达到指定的保护因子 (APF) 的关键程序.
- 了解影响呼吸器适配的因素对于有效的呼吸系统疾病保护至关重要.
研究的目的:
- 评估可重复使用的半面和全面呼吸器的适合性测试合格率.
- 为了比较冷凝核计数 (CNC) 和控制负压 (CNP) 的有效性,合适的测试方法.
- 为了确定影响呼吸器适应性测试性能的因素.
主要方法:
- 对225名参与者进行了适应测试,使用两种可重复使用的半面罩和两种全面罩.
- 凝结核计数 (CNC) 和控制负压 (CNP) 方法都用于适应性测试.
- 记录了参与者的人口统计数据 (性别,年龄,教育,培训) 和特定的移动情况.
主要成果:
- 与半面罩 (84.7%) 相比,全面罩的通过率更高 (91.6%).
- 性别是影响合格率的重要因素,女性可能会从全面罩中获益更多.
- 在测试期间说话与由于瞬间泄漏的高失败率有关;向前看是关键的相关动作.
结论:
- 面部整体呼吸器,特别是女性的面部呼吸器,提供了更好的保护,应该优先考虑.
- 与CNP相比,CNC适合性测试更实用,更全面,大多数参与者通过使用CNC.
- 进一步的研究应该调查生理特征的影响,如双下巴在呼吸器适应.
相关概念视频
01:30Administering Oxygen by Mask
449
Administering Oxygen by Mask
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
449
01:26Oxygen Delivering System I: Nasal Cannula and Face Mask
388
The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
388
01:16Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen
697
Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
697
01:25Pulmonary Function Tests
371
Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
371
01:25Tracheostomy Care II: Procedure
240
Tracheostomy care is an essential nursing skill that involves cleaning and maintaining a tracheostomy tube to prevent infection and other complications. Here's a step-by-step guide explaining each procedure with its rationale. Note that disposable gloves are to be worn at all times and changed as often as needed to maintain a sterile work environment, and to protect both patient and healthcare worker.
Step 1: Perform hand hygiene, and put on personal protective equipment: gown, gloves, mask...
Step 1: Perform hand hygiene, and put on personal protective equipment: gown, gloves, mask...
240
01:19Masking and Demasking Agents
2.5K
EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
2.5K