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Biomedical subjects

C Swartz

Publications and source records attributed to C Swartz.

82 records · Page 5Linked to original sources
PubMedDate not supplied

Resuscitation considerations to prevent pressure ulcers in trauma patients.

The success of a trauma resuscitation is often measured in short-term patient outcomes. To be a true success, the patient should also be protected from long-term problems that are easily preventable. Skin pressure ulcers are a real threat to trauma patients who are immobilized. Nurses involved in the initial care of these patients should be aware of the common causes of skin breakdown and how to prevent it.

Emergency Nursing↗
PubMedDate not supplied

Sequential hemodynamic changes in end-stage renal disease and the anephric state during volume expansion.

The sequence of hemodynamic events during periods of salt- and water-loading was studied in anephric patients and those with end-stage kidney disease. The 10 patients studied showed four different sequential hemodynamic patterns: 1) no significant increase in blood pressure (BP) in two patients; 2) increase in BP associated with an increase in cardiac output and without change in total peripheral resistance in two patients; 3) increase in BP associated with an increase in total peripheral resistance from the beginning without an increase in cardiac output in five patients; and 4) increase in BP associated with an initial increase in cardiac output followed by an increase in total peripheral resistance in one patient. There was a significant positive correlation between BP and blood volume and between BP and total exchangeable sodium in the patients in whom salt- and water-loading increased the BP. It is concluded that during salt- and water-loading an initial rise in cardiac output is not necessary to increase BP and that a sustained rise in cardiac output does not always increase the total peripheral resistance. Mechanisms other than whole-body autoregulation play a role in increasing BP during salt- and water-loading in patients deprived of renal excretory function.

Adolescent↗
PubMedDate not supplied

False-positive ethylene glycol levels in patients with diabetic ketoacidosis.

OBJECTIVE: To describe two patients with diabetic ketoacidosis and positive ethylene glycol levels and to call attention to the possibility of a false-positive ethylene glycol determination in patients with ketoacidosis. METHODS: Clinical manifestations and laboratory tests in the two patients were summarized. Serum specimens for both patients were analyzed for ethylene glycol, serum ketones, glucose, osmolality, pH, and electrolytes. RESULTS: Respective laboratory findings in our two patients were as follows: serum glucose levels, 56.4 and 45.7 mmol/L; serum acetone, positive in 1:80 and 1:128 dilution; serum osmolality, 366 and 377 mmol/kg; pH, 6.9 and 7.2; and ethylene glycol, 3.46 and 2.45 mmol/L. CONCLUSION: Neither of these two elderly women had ingested ethylene glycol; nevertheless, both had positive results for ethylene glycol on a blood toxicology screen. Review of the literature demonstrates that false-positive ethylene glycol levels can be detected in patients with ketoacidosis. This information is documented in this report and should alert practicing physicians to such a possibility.

Journal Article↗