نتایج جستجو برای: pefr

تعداد نتایج: 633  

Journal: :The Indian journal of chest diseases & allied sciences 2011
Yogesh Saxena Brijesh Purwar Rashi Upmanyu

BACKGROUND Although several factors such as respiratory muscle strength, lung compliance, resistance to airflow, and even obesity affect the lung functions, the nature of relationship with markers of adiposity is not clear. We hypothesised that central pattern of fat distribution is a significant predictor of decreased peak expiratory flow rate (PEFR). The present study was designed with the ai...

Journal: :International Journal of Environmental Research and Public Health 2021

We made static and personal PM2.5 measurements with a miniature monitor (RTI MicroPEM) to characterise the exposure of women cooking wood charcoal in indoor outdoor locations rural Malawi, together blood pressure peak expiratory flow rate (PEFR). Mean concentrations 1338 31 µg/m3 were observed 1 m from cookstove during charcoal, respectively. Similarly, mean exposures 706 94 Personal 3.3 1.7 ti...

Journal: :Thorax 1980
M R Hetzel T J Clark

A computer technique (cosinor analysis) has been used to evaluate circadian rhythms in airway calibre in normals and asthmatics. Two hundred and twenty-one normal subjects recorded peak expiratory flow rate (PEFR) at home four times a day for seven days. Rhythm detection was statistically significant in 145 of them (65.6%) who showed a mean amplitude of 8.3% of individual mean PEFR (+/- SD 5.2%...

2014
Kambiz Masoumi Arash Forouzan Maryam Haddadzadeh Shoushtari Samaneh Porozan Maryam Feli Mehdi Fallah Bagher Sheidaee Ali Asgari Darian

We undertook this randomized clinical trial to investigate whether adding furosemide to salbutamol could improve the peak expiratory flow rate (PEFR) and clinical signs of reactive airway disease (RAD) patients. Eligible 18- to 55-year-old patients were randomly divided into intervention and control groups. Patients received 5 mg of nebulized salbutamol and 40 mg of nebulized furosemide in the ...

Journal: :IEEE Access 2021

In this paper, we present an asthma risk prediction tool based on machine learning (ML). The entire is implemented a smartphone as mobile-health (m-health) application using the resources of Internet-of-Things (IoT). Peak Expiratory Flow Rates (PEFR) are commonly measured external instruments such peak flow meters and well known asthama predictors. work, find correlation between particulate mat...

Journal: :Thorax 1997
M J Epton I R Martin P Graham P E Healy H Smith R Balasubramaniam I C Harvey D W Fountain J Hedley G I Town

BACKGROUND There is evidence to suggest that changes in weather and airborne fungal spore and pollen counts may affect asthma symptoms. METHODS The relationship between climate, airborne fungal spore, and pollen counts and peak expiratory flow rate (PEFR) and asthma symptoms was prospectively investigated in a population of mild to moderate asthmatic subjects in Blenheim, New Zealand. Subject...

2005
Chang-Chuan Chan Tsung-Huan Wu

The extent to which occupational exposure to ozone in ambient air can affect lung function remains unclear. We conducted a panel study in 43 mail carriers by measuring their peak expiratory flow rates (PEFRs) twice daily for 6 weeks in 2001. The daily exposure of each mail carrier to O3, particulate matter < 10 microm in aerodynamic diameter (PM10), and nitrogen dioxide was estimated by one air...

Journal: :Journal of pharmaceutical research international 2021

Chronic hyperglycemia in Type 2 Diabetes Mellitus (T2 DM) is associated with ongoing damage, dysfunction, and failure of many organs, particularly the eyes, kidneys, nerves, heart, lungs, blood vessels diabetic patients may have considerable reductions lung functioning. Mellitus, Peak Expiratory Flow, Fasting Blood Sugar are some terms used this study. One hundred T2 DM patients, ranging age fr...

Journal: :Annals of geriatic education and medical sciences 2023

Lung functions exhibit a circadian rhythm. Peak Expiratory Flow Rate (PEFR) is an easily measured and reproducible parameter for measuring lung functions. Limited information available on the variations in south Indian adolescents. Hence, this study was undertakento evaluate diurnal variation of PEFR This longitudinal conducted among 30 adolescent girls age group 18-19 years recruited from host...

Journal: :British medical journal 1972
D W Empey

An indication of obstruction to the upper airways (trachea and larynx) may be obtained by calculating the ratio of the forced expired volume in one second to the peak expiratory flow rate (FEV(1)/PEFR). This index was found to be usually less than 10 in normal subjects (mean 7.3), and in patients with asthma (mean 6.9), chronic bronchitis (mean 7.7), or interstitial lung disease (mean 6.3). A s...

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