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Titolo:
Does pleural fluid pH change significantly at room temperature during the first hour following thoracentesis?
Autore:
Sarodia, BD; Goldstein, LS; Laskowski, DM; Mehta, AC; Arroliga, AC;
Indirizzi:
Cleveland Clin Fdn, Dept Pulm & Crit Care Med, Cleveland, OH 44195 USA Cleveland Clin Fdn Cleveland OH USA 44195 re Med, Cleveland, OH 44195 USA NE Ohio Univ, Coll Med, Youngstown, OH USA NE Ohio Univ Youngstown OH USA E Ohio Univ, Coll Med, Youngstown, OH USA Northside Med Ctr, Youngstown, OH USA Northside Med Ctr Youngstown OH USA orthside Med Ctr, Youngstown, OH USA
Titolo Testata:
CHEST
fascicolo: 4, volume: 117, anno: 2000,
pagine: 1043 - 1048
SICI:
0012-3692(200004)117:4<1043:DPFPCS>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
EFFUSIONS;
Keywords:
empyema; exudate; hydrogen ion concentration; pleural effusion; pleural fluid; specimen handling; temperature; time factor; transudate;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Arroliga, AC Cleveland Clin Fdn, Dept Pulm & Crit Care Med, G-62,9500 Euclid Ave, Cleveland, OH 44195 USA Cleveland Clin Fdn G-62,9500 Euclid Ave Cleveland OH USA 44195
Citazione:
B.D. Sarodia et al., "Does pleural fluid pH change significantly at room temperature during the first hour following thoracentesis?", CHEST, 117(4), 2000, pp. 1043-1048

Abstract

Background: Usually, pleural fluid (PF) pH is measured immediately following thoracentesis, and if there is any delay in the measurement, the PF sample is preserved on ice. Objective: To determine if PF pH changes significantly at room temperatureduring the first hour following thoracentesis,Design: Prospective, self-controlled,Setting: Tertiary care center. Patients: All patients undergoing thoracentesis. Measurements: The PF pH of a sample collected in an arterial blood gas syringe was measured immediately following thoracentesis by an arterial blood pH/gas analyzer. Additional measurements were made at 5, 15, 30, 45, and 60min from the first pH measurement (pH0), maintained at room temperature. Results: For 28 PF samples, pH0 (mean +/- SD) was 7.351 +/- 0.158, and theGO-min pH (pH60) was 7.359 +/- 0.161. The mean difference between pH60 andpH0 was 0.008 +/- 0.026, which was not significant, either clinically or statistically (p = 0.13). Similarly, the interim pH values (for measures at 5, 15, 30, 45 min after pH0) were not significantly different from pH0 (mean differences, 0.002, 0.003, 0.005, and 0.004, respectively; p values, 0.51, 0.21, 0.06, and 0.22, respectively). Conclusions: The pleural fluid pH of a sample presented at room temperature does not change significantly during the first hour following thoracentesis. Hence, contrary to the common medical practice, there is no need to perform the pll measurement within minutes after thoracentesis and to preservea pleural fluid sample on ice.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 00:36:00