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Biomedical subjects

A H Woods

Publications and source records attributed to A H Woods.

13 recordsLinked to original sources

Homeless and runaway youths' access to health care.

PURPOSE: To describe use of health services and self-reported access to regular and emergency care by homeless adolescents and street youth. METHODS: Interviewer-administered surveys addressed use of health services, availability of sources of care for emergencies, and types of care sources used. An abbreviated version of the questionnaire used for youth in shelters was used for street youth. A nationally representative sample of 640 sheltered youth and a purposive sample of 600 street youth aged 12-21 years were interviewed. All data were collected in 1992. RESULTS: Half of street youth and 36% of sheltered youth did not have a regular source of health care (p < or =.05). One-fourth of street youth and 18% of sheltered youth also reported serious health problems within the past year (p < or =.05). Street youth were more likely than sheltered youth to have used emergency treatment (36% vs. 29%; p < or =.05) and alcohol- or drug-related emergency treatment (25% vs. 13%; p < or =.05). Sheltered youth with a regular source of care were more likely to use nonemergency sites than those without a source of primary care (46% vs. 20%; p < or =.001). Few sheltered or street youth perceived shelter clinics, clinics for runaway youth, or free youth clinics to be available to meet their emergency care needs. CONCLUSIONS: Significant numbers of homeless youth did not have a regular source of health care. Those who had a regular source of care were more likely to have continuity between routine and emergency care. Integration of health services with other agencies serving youth in shelters or on the street may improve access to care for those without a routine source of care and provide better continuity for these high-risk youth.

Adolescent↗

The effect of algorithms on the cost and quality of patient care.

In a Veterans Administration ambulatory care facility staffed by experienced nurse practitioners, we observed the length of visits, time utilization for various activities, and the use of diagnostic tests before and after introducing algorithms for 12 common chief complaints. Charges for diagnostic tests decreased as much as 40 per cent, primarily because of reduced utilization of radiographs such as spine films. Nurse practitioner productivity was unaffected once the nurse practitioners became familiar with the algorithms. Outcome of illness did not change measurably, but the process of care improved as reflected by more complete data collection documented in the medical record.

Ambulatory Care Facilities↗

In vitro effects of zinc chloride on spontaneous sheep red blood cell (e) rosette formation by lymphocytes from cancer patients and normal subjects.

The in vitro spontaneous formation of sheep red blood cell (SRBC) (E) rosettes by peripheral blood lymphocytes is altered in vitro by the addition of micro-molar quantities of zinc chloride. Appropriate concentrations of zinc chloride cause marked enhancement of rosette formation, both in normal subjects and in cancer patients with low initial E rosette values. The effect is dependent upon zinc treatment of the lymphocyte and not the SRBC. Other zinc-induced effects on E rosettes include retardation of temperature-dependent spontaneous decay, increased mechanical stability due to enhanced of "capping." The formation of EAC rosettes is not altered by the presence of zinc.

Animals↗

Pseudoentrapment of ointment in the cornea.

A previously unrecognized characteristic clinical entity, "pseudoentrapment of ointment in the cornea" may occur in corneal lesions that have (1) topical application of ointments to the corneal lesion, (2) application of a firm pressure dressing, and (3) stromal loss or distortion of its normal architecture that allows for ointment globules to lie below the corneal surface. The clinical picture is that of a cluster of large ointment globules lodged within the corneal defect. Experimental data suggest that the ointment globules are entrapped within the wound exudates and lodged below the plane of the corneal surface. No treatment is necessary since the globules are extruded within the next 24 to 48 hours even if the pressure dressing is continued. Pseudoentrapment of ointment inthe cornea is compared with and differentiated from corneal ointment entrapment and corneal spheroidal degeneration.

Adult↗

Absorption of proteins and peptides in the far ultraviolet.

An absorption peak for the peptide bond at 187 nanometers has been confirmed; a protein assay at this wavelength allows quantitation of proteins in aqueous solution at concentrations between 0.1 and 25 micrograms per milliliter. Assays are conducted at 6 degrees C to take advantage of the reduction of end-absorption of water with temperature.

Glycine↗