Abstract:
UNLABELLED:STUDY PURPOSES: To survey hospital laboratories in the United States to determine methods used for measuring pleural fluid pH, and to compare pleural fluid pH values obtained with a traditional tabletop blood gas analyzer (BGA) to those obtained with a handheld analyzer. METHODS:Hospital laboratories nationwide were contacted by telephone to survey the methods used to measure pleural fluid pH. In a second phase, pleural fluid was prospectively collected from 19 pediatric and adult patients with pleural effusions, and pleural fluid pH was measured simultaneously with a traditional tabletop BGA and with a handheld unit. RESULTS:A total of 220 hospital laboratories were contacted by telephone, and 166 responded (75%). The methods for determining pleural fluid pH for all hospital laboratories were pH meter (35%; n = 59), BGA (32%; n = 53), and litmus paper (31%: n = 51); 2% (n = 3) did not perform the test. University hospitals were more likely to use a BGA, compared to community hospitals (p < 0.014) or children's hospitals (p < 0.001). In the comparison of pleural fluid measurements, the mean pH for the traditional BGA was 7.358 +/- 0.189, and the mean pH for the handheld unit was 7.382 +/- 0.203. The absolute difference between the two machines was 0.024 U, and the two methods were correlated (p < 0.01; r = 0.993; degrees of freedom = 36). CONCLUSION:Most hospital laboratories in the United States do not measure pleural fluid pH using a traditional BGA and use alternative methods that have previously been shown to be inaccurate. Pleural fluid pH obtained by a handheld unit has a high degree of correlation to that of a traditional tabletop BGA, and it offers a satisfactory alternative for laboratories reluctant to measure pleural fluid pH with a BGA.
journal_name
Chestjournal_title
Chestauthors
Kohn GL,Hardie WDdoi
10.1378/chest.118.6.1626subject
Has Abstractpub_date
2000-12-01 00:00:00pages
1626-9issue
6eissn
0012-3692issn
1931-3543pii
S0012-3692(15)37870-3journal_volume
118pub_type
杂志文章相关文献
CHEST文献大全abstract:STUDY OBJECTIVES:To evaluate the intraoperative evolution of patients with COPD during lung resection and to test whether exercise testing could be helpful in the prediction of the intraoperative course. DESIGN:Prospective study. SETTING:University teaching hospital. PATIENTS:Forty patients (mean [+/- SD] age, 65 +/...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.120.3.852
更新日期:2001-09-01 00:00:00
abstract::Left hemorrhagic pleural effusion was the presenting sign of painless aortic dissecting aneurysm in two elderly hypertensive patients. Computed tomography (CT) of the chest revealed the aneurysmal dilatation of the thoracic aorta and an intimal flap connecting its descending part with the left pleural space. The patie...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.106.2.636
更新日期:1994-08-01 00:00:00
abstract:BACKGROUND:Childhood OSA is a prevalent condition associated with raised BP as documented in cross-sectional studies. This study aimed to determine whether baseline or change in OSA severity was associated with ambulatory BP at 4-year follow-up. METHODS:Children who participated in our previous OSA prevalence research...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.13-1333
更新日期:2014-06-01 00:00:00
abstract:STUDY OBJECTIVES:To analyze the physiologic effects and tolerance of mechanical insufflation-exsufflation (MI-E) by means of mechanical cough assistance (Cough Assist; JH Emerson Company; Cambridge, MA) for children with neuromuscular disease. DESIGN:Prospective clinical trial. SETTING:Physiology laboratory of a pedi...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.07-1615
更新日期:2008-01-01 00:00:00
abstract::The association of complex congenital heart disease with asplenia syndrome and congenital AV block is described in a newborn. Cardiovascular lesions were right atrial isomerism, d-loop, discordant ventriculoarterial connection, pulmonary stenosis, total anomalous pulmonary venous drainage, absent right pulmonary arter...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.85.4.578
更新日期:1984-04-01 00:00:00
abstract:INTRODUCTION:The current invasive and noninvasive methods for delivering long-term ventilatory support rely on cumbersome patient interfaces that may interfere with upper airway function. To overcome these limitations, a novel system was developed to ventilate conscious, spontaneously breathing dogs through a self-cont...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.122.5.1742
更新日期:2002-11-01 00:00:00
abstract:OBJECTIVE:The purpose of the study was to evaluate the long-term effects of aerosolized pentamidine (AP) on the pulmonary function of HIV-positive individuals receiving AP for Pneumocystis carinii pneumonia (PCP) prophylaxis. DESIGN:A retrospective analysis of serial pulmonary function tests (PFTs) performed on a coho...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.114.3.742
更新日期:1998-09-01 00:00:00
abstract:BACKGROUND:COPD is a major cause of morbidity and mortality in the United States as well as throughout the rest of the world. An exacerbation of COPD (periodic escalations of symptoms of cough, dyspnea, and sputum production) is a major contributor to worsening lung function, impairment in quality of life, need for urg...
journal_title:Chest
pub_type: 杂志文章,评审
doi:10.1378/chest.14-1676
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:Altitude-induced pulmonary hypertension has been suggested to cause left ventricular (LV) diastolic dysfunction due to ventricular interaction. In this study, we evaluate the effects of exercise- and altitude-induced increase in pulmonary artery pressures on LV diastolic function in an interventional setting...
journal_title:Chest
pub_type: 杂志文章,随机对照试验
doi:10.1378/chest.07-0297
更新日期:2007-08-01 00:00:00
abstract::This study describes the extent of agreement in classification of chest radiographs using the International Labor Organization (ILO) classification among six readers from the United States and Canada. A set of 119 radiographs was created and read by three Canadian and three US readers. The two ratings of interest were...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.114.6.1740
更新日期:1998-12-01 00:00:00
abstract::We analyzed seven patients with beta-thalassemia intermedia presenting with congestive heart failure secondary to pulmonary hypertension. This condition has been recognized only recently as part of the clinical spectrum of beta-thalassemia. Our group of patients included two men and five women with the clinical pictur...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.107.1.50
更新日期:1995-01-01 00:00:00
abstract::Three patients had hypertrophic obstructive cardiomyopathy and coronary artery spasm. The clinical diagnosis of hypertrophic obstructive cardiomyopathy, in all patients, was confirmed by echocardiography and angiography. Significant spasm of the right coronary artery was demonstrated in each patient by selective coron...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.76.6.636
更新日期:1979-12-01 00:00:00
abstract::A study to assess the effect of the long-term use of triamcinolone acetonide (TA) on adrenal function was conducted with 143 male and female patients with asthma who were randomly assigned to receive 800, 1200, or 1,600 micrograms of TA daily for six months. Adrenal function was assessed prior to treatment and after t...
journal_title:Chest
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1378/chest.101.5.1250
更新日期:1992-05-01 00:00:00
abstract::This study was designed to determine if there is residual airflow obstruction and/or airway hyperresponsiveness in adults with symptomatic asthma remission, and if age at remission or its duration influence these parameters. We studied 30 subjects, (20 men, 10 women, 28 atopics, aged 18 to 61 years; mean, 32 years) wi...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.105.4.1024
更新日期:1994-04-01 00:00:00
abstract:BACKGROUND:The "Dutch hypothesis" suggests that asthma and COPD have common genetic determinants. The serpin peptidase inhibitor, clade E (nexin, plasminogen activator inhibitor type 1), member 2 (SERPINE2) gene previously has been associated with COPD. We sought to determine whether SERPINE2 is associated with asthma ...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.10-2973
更新日期:2011-09-01 00:00:00
abstract::Uhl's disease is a rare disorder originally described in 1952 in an infant with severe diffuse right ventricular dysfunction with total absence of the myocardium. Uhl considered the disease to be congenital in origin. We report a patient with severe dilated congestive cardiomyopathy limited to the right ventricle but ...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.90.2.300
更新日期:1986-08-01 00:00:00
abstract:BACKGROUND AND STUDY OBJECTIVES:Noninvasive positive airway pressure may play a significant role in treating patients with congestive heart failure (CHF). We tested our hypothesis that noninvasive bilevel positive airway pressure improves left ventricular performance in patients with chronic CHF secondary to severe sys...
journal_title:Chest
pub_type: 临床试验,杂志文章
doi:10.1378/chest.118.4.1004
更新日期:2000-10-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to identify the CT scan features that predict patient outcome after reexpansion procedures in patients with the fibrotic stage of endobronchial TB. METHODS:We retrospectively enrolled 30 patients (four men, 26 women) aged 32 +/- 11 years who had lobar or whole-lung atelectasis ...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.09-1846
更新日期:2010-08-01 00:00:00
abstract::The timing of surgical treatment of empyema remains controversial. Traditionally, thoracotomy is performed either within three weeks of diagnosis or delayed until presumed pleurodesis occurs. Often, these patients are moribund and the duration of illness impossible to determine. We report our surgical results in seven...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.90.4.511
更新日期:1986-10-01 00:00:00
abstract::Cardiorespiratory values were measured in ten patients with severe respiratory failure on volume controlled and pressure controlled ventilation. Tidal volume, respirator rate, PEEP, auto-PEEP, inspiratory:expiratory ratio (1:2) and FIo2 were maintained at the same value for both ventilatory modalities. Changing from V...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.98.6.1445
更新日期:1990-12-01 00:00:00
abstract::Spontaneous echo contrast is uncommon in pericardial effusion. We report the case of a patient with massive malignant pericardial effusion causing cardiac tamponade in which the intense spontaneous echo contrast was found in the effusion by echocardiography. It was suggested that both the heavy blood content and a lar...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.103.5.1600
更新日期:1993-05-01 00:00:00
abstract:BACKGROUND:The literature on preoperative smoking cessation indicates that smoking patients are more likely to have postoperative complications. However, the economic implications of such complications are unclear. In particular, the balance between the cost of a preoperative intervention for smoking cessation (PISC) a...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.08-0897
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND:Over the last 25 years, a growing number of clinical trials have evaluated novel sepsis therapies. To promote uniformity in inclusion criteria for patient enrollment, the American College of Chest Physicians and Society of Critical Care Medicine first published consensus conference definitions for sepsis in ...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.127.1.242
更新日期:2005-01-01 00:00:00
abstract::A case of disseminated histoplasmosis followed later by disseminated coccidioidomycosis is described. The clinical illness and immunologic studies suggest subtle defects that may have existed antecedent to infection and, thus, provided an opportunity for widespread dissemination by these normally nonopportunistic orga...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.72.2.238
更新日期:1977-08-01 00:00:00
abstract::In order to determine the likelihood of pre-existing nutritional deficits in medical patients with acute respiratory failure, a nutritional assessment survey was performed on 18 control patients with stable COPD and nine patients with COPD and acute respiratory failure. Significant differences were noted with the resp...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.82.5.568
更新日期:1982-11-01 00:00:00
abstract::To evaluate the role of red blood cell (RBC) antioxidants as clinical markers of oxidative exposure, we measured RBC glutathione (GSH) concentrations in 32 adult patients with cystic fibrosis (CF), and 8 healthy age-matched control subjects. We chose patients with CF because this disease is characterized by severe bro...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.105.5.1470
更新日期:1994-05-01 00:00:00
abstract:BACKGROUND:International time trends in asthma mortality have played an important sentinel role in the identification of two epidemics of asthma mortality in some countries in the 1960s and the 1970s and 1980s. Since then, little attention has been paid to the ongoing international time trends. METHODS:Country-specifi...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.08-2082
更新日期:2009-04-01 00:00:00
abstract::Exposure to cigarette smoke can lead to a variety of parenchymal lung diseases, including diffuse cystic lung diseases (DCLDs). Lymphangioleiomyomatosis (LAM) is the prototypical DCLD and has a characteristic appearance on high-resolution CT (HRCT). We present a series of four patients with DCLD on HRCT who were refer...
journal_title:Chest
pub_type: 杂志文章
doi:10.1016/j.chest.2018.02.027
更新日期:2018-08-01 00:00:00
abstract::Several reports in the literature and our experience prior to 1974 support the thesis that operative risk in patients with acquired heart disease and poor ventricular function (as assessed by a biplane ejection fraction [EF] less than or equal to 0.40) was very significantly increased over the risk in patients with no...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.71.3.371
更新日期:1977-03-01 00:00:00
abstract:OBJECTIVE:To evaluate an adjustable mandibular positioning appliance for treatment of snoring and sleep apnea. METHODS:One hundred thirty-four patients with baseline apnea/hypopnea index (AHI) of 37 +/- 28 events/h (mean +/- SD) received the appliance. The efficacy of the appliance was assessed by the following invest...
journal_title:Chest
pub_type: 杂志文章
doi:10.1378/chest.116.6.1511
更新日期:1999-12-01 00:00:00