Assessment of infant gonadal dose irradiated from urine-contaminated diapers during diuretic renal scintigraphy.

OBJECTIVE: To estimate the gonadal doses irradiated from urine- contaminated diapers during diuretic renal scintigraphy. METHODS: Images of 31 patients (18 males and 13 females) with urine-contaminated diapers during 99m Tc-MAG3 renal scintigraphy were analyzed. The count rate of the diapers was converted into a time-activity curve based on the calibrated factor of the gamma camera system. The cumulative activity was determined from the area under the curve. By incorporating dose per unit cumulative activity pre-calculated from Monte Carlo simulation with 0-year phantom, the gonadal dose irradiated from diaper was calculated. To assess the degree of this additionally introduced dose from diapers, the calculated gonadal dose was compared to the internal gonadal dose from injected radiotracer activity. RESULTS: The cumulative activities irradiated from urine-contaminated diapers were 1.12 E04 ±â€…1.29E04 MBq.s in male infants, which was nearly half of the 1.94 E04 ±â€…1.80E04 MBq.s ( P  = 0.15) in female infants. However, the absorbed doses for testes in male infants were 7.37E-01 ±â€…8.50E-01 mGy, which was approximately 10 times the 6.38E-02 ±â€…5.94E-02 mGy for ovaries in female infants ( P  < 0.01). The diaper-introduced dose for testes and ovaries was 91.7% and 3.9% of the gonadal doses from the injected activity in patients with normal renal function, and 99.0% and 4.3% of those in patients with abnormal renal function. CONCLUSION: Urine-contaminated diapers introduced additional radiation doses to infant patients during 99m Tc-MAG3 renal scintigraphy. The gonadal doses were of significance in male infants who had nearly double the absorbed dose for the testes.

Facilitating forgiveness and peaceful closure: the therapeutic value of psychosocial intervention in end-of-life care.

The importance of addressing psychosocial concerns with dying patients is pivotal to facilitating peaceful closure in end of- life care. The social worker's role in recognizing and providing skilled, psychosocial intervention with patients and families in hospice programs is significant. In this article, the literature in this area is examined and a case example of a hospice patient's need for closure and the responsive social work intervention for the patient in his moment of death is provided. The case offers social work knowledge and skills and demonstrates the therapeutic benefit of addressing psychosocial needs in end-of-life care. The importance of targeted training and continued skill development for social workers in end-of-life treatment settings is emphasized.

Economic, political and ethnic influences on end-of-life decision-making: a decade in review.

Implementation of the Patient Self Determination Act (PSDA) a decade ago has been followed by considerable research examining usage of advance directives among patient populations as well as among health care professionals. This article summarizes the history of end-of-life medical treatment options and provides a discussion of critical economic, political, and legal events that preceded passage of the PSDA. A review of the literature during the decade that followed is presented including research exploring ethnic factors in the completion of advance directives. Barriers to completing advance directives by minority populations are discussed and considerations for policy makers are provided.