高效液相色谱法测定人血浆中阿莫西林浓度及药代动力学

高效液相色谱法测定人血浆中阿莫西林浓度及药代动力学谭力周继红罗楠袁倚盛（南京军区南京总医院中心仪器分析科，南京２１０００１）阿莫西林（ａｍｏｘｉｃｉｌｉｎ）为β内酰胺类抗生素，其抗菌谱广，口服受食物影响小，对大多数病人耐受性良好，因而在临床上得以广泛...     

Paratesticular desmoid tumor

A primary intrascrotal mass clinically mimicking a testicular tumor was found to be a desmoid tumor originating from the spermatic cord. To our knowledge, this is the first reported case of a paratesticular desmoid tumor.     

Strategies to avoid unnecessary cesarean sections

Because there is a 35 to 50 percent incidence of false-positive prediction of fetal compromise on fetal heart-rate monitoring patterns, many unnecessary cesarean sections are performed. To reduce the number of unnecessary cesarean sections, the physician is urged to consider the following: (1) fetal heart-rate monitoring is associated with higher rates of cesarean sections than in those not monitored; (2) only high-risk patients should be monitored provided the low-risk patient is at term, with a normal-sized infant, and does not convert to a high-risk patient while in labor; (3) maintenance of variability is a better predictor of absence of acidosis than is fetal scalp pH; (4) fetal scalp stimulation by firm digital pressure or gentle nontraumatic clamping of scalp tissue or acoustic stimulation obviates the need for fetal scalp pH confirmation of acidosis in 50 percent of cases; (5) monetary considerations may unconsciously lead to increased cesarean sections, since insurance companies remunerate at a higher level for those as compared with vaginal deliveries; and (6) more patients with prior cesarean section should be given a trial of labor, since the initial reason for cesarean section often is not a recurring one and many could successfully be delivered vaginally. Ultimately there is a risk inherent in any decision regarding method of delivery. The patient must understand this risk and share in the decision-making process as a knowledgeable person, aware of the limitation of her physician.     

Assessing hospital nursing staff retention and turnover. A life table approach.

This research applied the life table technique to nursing personnel data in two types of hospitals to illustrate how administrators can examine patterns of continued employment. Although a large proportion of nurses were short-stay employees, the teaching hospital was found to have a higher retention rate than the community hospital corporation. The retention patterns are examined by personal and professional characteristics, as well as by reason for termination. Implications of our findings are discussed with respect to policy concerns related to hiring, retention, productivity, and staff development.