نتایج جستجو برای: blood gas
تعداد نتایج: 918127 فیلتر نتایج به سال:
• The Kety-Schmidt method for measurement of regional blood flow was first applied to the heart by Eckenhoff et al. These investigators employed coronary sinus catheterization to measure myocardial blood flow with nitrous oxide. The use of a radioactive gas and an external detector for the measurement of organ blood flow was investigated by Conn, Lewis et al., and Lassen et al. The radioactive ...
Penile blood gas can aid in the determination of the subtype of priapism to further guide treatment. A pH 7.25, PO2 30, and PCO2 60 indicate low-flow (ischemic) priapism, which needs to be treated immediately by administration of phenylephrine and draining of blood from the penis. High-flow priapism (1, 2) is usually self-limiting. The sequential samples were obtained to determine the effective...
Streptococcus pyogenes (group A streptococcus [GAS]) is responsible for over 500,000 deaths worldwide each year. The highly virulent M1T1 GAS clone is one of the most frequently isolated serotypes from streptococcal pharyngitis and invasive disease. The oral epithelial tract is a niche highly abundant in glycosylated structures, particularly those of the ABO(H) blood group antigen family. Using...
We have conducted a voluntary, community blood-gas proficiency testing program, with use of tonometered human blood, for 32 analyzers located in 16 laboratories. Instruments initially showed inaccuracies as large as -30.8 to +17.3% for po(2), and -14.0 to +42.9% for pco(2), but inaccuracy and imprecision decreased in most laboratories during the program. For a typical 15-week period, mean group...
Correspondence Fetal blood gas analysis at delivery Sir, In a recent article D'Souza et al.1 note that it is simpler and more convenient to obtain umbilical venous than arterial blood to assess the acid base status of a newborn infant at delivery. They add, however, that sampling arterial blood would be preferable to venous blood as the former reflects more closely the metabolic condition of th...
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