RESUMO
United States standards recommend limits to occupational exposure to nitrous oxide. This can be achieved by the scavenging of waste anaesthetic gases, a routine practice in the operating suite, but less common in the delivery suite. In this study, nitrous oxide levels in the delivery room were measured, and scavenged and unscavenged levels were compared. Unacceptable levels of nitrous oxide were found in unscavenged delivery rooms, and in the majority of cases, scavenging reduced nitrous oxide pollution to within recommended limits.
Assuntos
Poluentes Ocupacionais do Ar/análise , Poluição do Ar em Ambientes Fechados/análise , Anestesia Obstétrica , Salas de Parto , Depuradores de Gases , Óxido Nitroso , Poluição do Ar em Ambientes Fechados/prevenção & controle , Feminino , Humanos , GravidezAssuntos
Anafilaxia/induzido quimicamente , Poligelina/efeitos adversos , Idoso , Anafilaxia/imunologia , Complemento C3/análise , Hipersensibilidade a Drogas/etiologia , Hipersensibilidade a Drogas/imunologia , Feminino , Humanos , Hipotensão/induzido quimicamente , Imunoglobulina E/sangue , Peptídeo Hidrolases/sangueAssuntos
Sangue , Oximetria/instrumentação , Contaminação de Equipamentos , Dedos , Humanos , MasculinoAssuntos
Hipofisectomia/métodos , Neoplasias Hipofisárias/cirurgia , Ar , Humanos , Injeções , Espaço SubaracnóideoRESUMO
Five patients known to be previously hypertensive but not currently receiving anti-hypertensive medications were studied for a total of twenty-six administrations of electroconvulsive therapy. Patients randomly received sublingual nifedipine 10 mg, 20 minutes prior to half of their treatments, and for the remaining treatments acted as their own controls. The use of nifedipine resulted in significant attenuation of the blood pressure response to therapy. Systolic pressure increase was 24 mmHg (SD 14) versus 62 mmHg (SD 24) (P less than 0.01). There was no difference in heart rate between the two groups. It is concluded that nifedipine reduces the pressor response to electroconvulsive therapy in individuals with a history of hypertension.
