Red cell stability in the face of thermal stress has been evaluated only in the setting of prolonged incubation. This study was conducted to determine red cell tolerance of rapid mixture with heated saline, which exposes red cells to heat only until thermal equilibration, which is a matter of seconds. Half-units of 35-day-old red cells stored in CPDA-1 were mixed at 6 to 10 degrees C in the blood container with an equal weight of 60, 70, or 80 degrees C saline. This resulted in mean mixture temperatures of 30.9, 37.5, and 42.6 degrees C, respectively. Controls consisted of the same mixture, but with 6 to 10 degrees C saline. The red cells in the mixtures were assessed for osmotic fragility, and the supernatant was examined for plasma hemoglobin and potassium. Neither osmotic fragility curves nor supernatant hemoglobin or potassium changed significantly with saline temperatures of 60 or 70 degrees C. When 80 degrees C saline was used, osmotic fragility, supernatant hemoglobin, and potassium all increased significantly (p less than 0.01) over control values. Red cells tolerate rapid mixture with 70 degrees C saline without hemolysis or change in osmotic fragility.

Erythrocyte Transfusion↗

PubMedDate not supplied

Discharge planning for the patient with a new tracheostomy.

A patient with a new tracheostomy will face threatening changes upon discharge from hospital support. Nurses, particularly in the critical care unit, frequently and closely support a patient and family through new and often difficult situations during hospitalization. The patient leaving the hospital with a new tracheostomy will face problems with secretion management, increased risk of infections, alterations in body image, and impaired vocalization. To ensure a safe transition from the hospital to home, the patient and family must demonstrate competence in all aspects of tracheostomy care, must be able to recognize signs and symptoms that should be reported to the physician, and must have adequate support at home (such as homecare nurses, properly functioning equipment, and access to necessary supplies). These "musts" form the basis of the discharge care plan. Nurses can help a patient successfully manage these problems through comprehensive discharge planning. Although the critical care nurses who initiate the multidisciplinary discharge planning process may not remain involved in that process throughout the patient's hospitalization, their early efforts can provide an orderly, comprehensive discharge plan optimally suited to ensure that the patient and family acquire the necessary skills, confidence, supplies, and support for the eventual transition home. The information, encouragement, skills demonstrations, and referrals to other resources that critical care nurses provide help the patient adjust to a new tracheostomy.

Adult↗