Postural changes in respiratory drive during CO(2) rebreathing [proceedings].
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Biomedical subjects
Publications and source records attributed to M J Saunders.
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A supply of 60% oxygen with 40% nitrogen should be acceptable for most clinical purposes, since usually only low dosages of oxygen are required. The gas may be provided by means of an oxygen concentrator (Rimer-Birlec), which is a compact, transportable, electrically operated apparatus capable of providing 28 l./min. (1 cu. ft./min.) of 60% oxygen from a source of compressed air. The biological effect of the gas from the device is the same as that of 60% oxygen from a conventional source. Measurements of inspired oxygen concentration show that the 60% oxygen may be used with present-day oxygen masks to provide inspired oxygen concentrations in the range 25 to 40%; for higher inspired concentrations alternative equipment is likely to be required. The concentrator appears to be a practical source of oxygen for expeditions and out-of-the-way places. It may provide an economical supply for a ward block, and with further development should be a convenient source of 30% oxygen for domiciliary use.
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Older patients' nutritional status must be assessed for their morbidity and mortality to be decreased and their quality of life improved. Food and fluid intake is markedly influenced by oral health status. In turn, oral health has an interrelationship with general health. Because nutritional status and oral health exist in a symbiotic relationship, it is essential that the dental team identify older patients who are nutritionally at risk. Screening for nutritional problems in elderly dental patients is made easier with screening instruments developed by the Nutrition Screening Initiative (NSI). The NSI developed criteria to determine risk factors for poor nutritional status in older Americans. The DETERMINE Your Nutritional Health checklist, a 10-item screening instrument, followed by the Levels I and II Nutrition Screens, can be used in the dental office to ascertain which elderly patients are most likely to be in danger of experiencing nutritional problems. The dental team can then perform interventions and/or make appropriate referrals.
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Two objectives were established for this study: 1) to assess the impact of a culturally specific, intensive diabetes education program on dietary patterns, and 2) to assess nutrient consumption relative to the Recommended Dietary Allowances. The study population consisted of elderly Mexican Americans with diabetes living in Harlingen and Brownsville, Texas. The experimental group (n = 78) participated in an intense, 2-hour nutrition education session, while the control group (n = 74) did not. The education session was conducted for groups of eight subjects via videotapes and interactive discussion. All groups experienced significant weight loss except the women in the experimental group. After the education program, however, the experimental women had increased the percentage of calories consumed daily from carbohydrate. Mean calcium consumption was substantially less than the RDA in all groups, and inadequate amounts of ascorbic acid and vitamin A often were consumed. Intensive, frequent, long-term follow-up appears essential for more sustained results.
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