PubMed Health⌕ Search

Biomedical subjects

R Sturgeon

Publications and source records attributed to R Sturgeon.

5 recordsLinked to original sources
PubMed1989

A correlation between the Geriatric Depression Scale long and short forms.

A sample of 81 elderly subjects (M age = 76 years) volunteered to take part in a study to determine whether the Geriatric Depression Scale (GDS) Short Form is an acceptable substitute for the GDS Long Form. Half of the subjects took the GDS Long Form first, and half took the GDS Short Form first. After two weeks, the subjects were given the remaining form. Although the mean scores were lower than in previous correlation studies, the results indicated that the GDS Short Form correlated significantly (r = +.66, p less than .01) with the GDS Long Form, but not highly enough to be considered an appropriate substitute.

Age Factors↗
PubMed1980

Compatibility of calcium chloride and calcium gluconate with sodium phosphate in a mixed TPN solution.

The maximum concentrations of phosphate that will remain soluble in a parenteral nutrient solution containing various concentrations of calcium chloride or calcium gluconate were determined. Various concentrations of sodium phosphate were mixed with FreAmine II (McGaw Laboratories), and the resulting solutions were mixed with 50% dextrose solutions containing various concentrations of calcium chloride or calcium gluconate. The final solutions were sealed and stored at 30 degrees C for 24 hours and then were inspected visually for precipitate formation. It was found that higher equivalent concentrations of phosphate are attainable when calcium gluconate, instead of calcium chloride, is used as the calcium source. Factors found to influence the concentrations of calcium and phosphate that are compatible in amino acid solutions are the calcium salt used, temperature and duration of storage, dextrose concentration, amino acid composition, pH, and other additives.

Amino Acids↗
PubMed1979

Visual compatibility of 30 additives with a parenteral nutrient solution.

The visual compatibility of 30 drug additives with total parenteral nutrient (TPN) solutions (4.25% amino acids, 25% dextrose injection) was studied. For each drug additive, three TPN solutions were mixed; two were stored for 22 hours at 4 C then allowed to equilibrate to room temperature for two hours. Two 25-ml samples from each TPN solution were examined immediately or after 25 hours for visual appearance, particulate matter levels and pH. A microscope was used to count and measure particles filtered from samples on a 0.8-micrometer filter. Only the TPN solutions containing amphotericin B showed any visual discoloration or precipitation. All amphotericin B samples and the 25-hour ampicillin sodium samples exceeded USP particulate matter specifications. Individual particulate matter levels of the other TPN solutions varied but met USP specifications. With the exception of tetracycline hydrochloride, which dropped the TPN solution's pH 0.9 units, the additives had little effect on pH of the TPN solutions (pH 6.45). Amphotericin B and ampicillin sodium were considered visually incompatible with TPN solutions. All other drug additives tested were visually compatible with TPN solutions.

Drug Combinations↗