The concept of "the will to thrive" in mental health.

Mental health nursing is focused on patients moving along the continuum between failing and thriving in terms of emotional functioning. This differs dramatically from a medical model of disease/cure. A variety of nursing theorists have both directly and indirectly identified the importance of patient's "will to thrive" although this term has never been used. Peplau spoke of self-efficacy and self-esteem. Barrett's model focuses on the patient's participation in their own recovery as a key component. This article explores the concept, akin to failure to thrive in infants, of the will to thrive in the chronically ill and its role in assessment and nursing intervention. A particular emphasis on the importance of patient responsibility is identified as vital to the process of true change.

Black tea is not significantly different from water in the maintenance of normal hydration in human subjects: results from a randomised controlled trial.

There is a belief that caffeinated drinks, such as tea, may adversely affect hydration. This was investigated in a randomised controlled trial. Healthy resting males (n 21) were recruited from the general population. Following 24 h of abstention from caffeine, alcohol and vigorous physical activity, including a 10 h overnight fast, all men underwent four separate test days in a counter-balanced order with a 5 d washout in between. The test beverages, provided at regular intervals, were 4 × 240 ml black (i.e. regular) tea and 6 × 240 ml black tea, providing 168 or 252 mg of caffeine. The controls were identical amounts of boiled water. The tea was prepared in a standardised way from tea bags and included 20 ml of semi-skimmed milk. All food taken during the 12 h intervention period was controlled, and subjects remained at rest. No other beverages were offered. Blood was sampled at 0, 1, 2, 4, 8 and 12 h, and a 24 h urine sample was collected. Outcome variables were whole blood cell count, Na, K, bicarbonate, total protein, urea, creatinine and osmolality for blood; and total volume, colour, Na, K, creatinine and osmolality for urine. Although data for all twenty-one participants were included in the analysis (mean age 36 years and mean BMI 25·8 kg/m(2)), nineteen men completed all conditions. Statistical analysis, using a factorial ANOVA approach within PROC MIXED, revealed no significant differences between tea and water for any of the mean blood or urine measurements. It was concluded that black tea, in the amounts studied, offered similar hydrating properties to water.

Measuring the glycemic index of foods: interlaboratory study.

BACKGROUND: Many laboratories offer glycemic index (GI) services. OBJECTIVE: We assessed the performance of the method used to measure GI. DESIGN: The GI of cheese-puffs and fruit-leather (centrally provided) was measured in 28 laboratories (n=311 subjects) by using the FAO/WHO method. The laboratories reported the results of their calculations and sent the raw data for recalculation centrally. RESULTS: Values for the incremental area under the curve (AUC) reported by 54% of the laboratories differed from central calculations. Because of this and other differences in data analysis, 19% of reported food GI values differed by >5 units from those calculated centrally. GI values in individual subjects were unrelated to age, sex, ethnicity, body mass index, or AUC but were negatively related to within-individual variation (P=0.033) expressed as the CV of the AUC for repeated reference food tests (refCV). The between-laboratory GI values (mean+/-SD) for cheese-puffs and fruit-leather were 74.3+/-10.5 and 33.2+/-7.2, respectively. The mean laboratory GI was related to refCV (P=0.003) and the type of restrictions on alcohol consumption before the test (P=0.006, r2=0.509 for model). The within-laboratory SD of GI was related to refCV (P<0.001), the glucose analysis method (P=0.010), whether glucose measures were duplicated (P=0.008), and restrictions on dinner the night before (P=0.013, r2=0.810 for model). CONCLUSIONS: The between-laboratory SD of the GI values is approximately 9. Standardized data analysis and low within-subject variation (refCV<30%) are required for accuracy. The results suggest that common misconceptions exist about which factors do and do not need to be controlled to improve precision. Controlled studies and cost-benefit analyses are needed to optimize GI methodology. The trial was registered at clinicaltrials.gov as NCT00260858.

Infertility and the role of psychotherapy.

Infertility affects 6 million American women and their partners, about 10% of the reproductive age population. Recent improvements in medication, microsurgery, and assisted reproductive technology (ART) make pregnancy possible for more than half the couples pursuing treatment, yet infertility is more than a medical condition. Infertility touches all aspects of a person's life. It affects how individuals feel about themselves, their relationships, and their life perspective. Stress is only one of a myriad of emotional realities that couples facing infertility deal with, often for extended periods of time. In addition to ongoing stress, infertility creates issues of guilt, anxiety, tension within the relationship, and feelings of depression and isolation. Treating couples and individuals who are involved in the journey of dealing with infertility is an opportunity for clinical specialists in psychiatric mental health nursing. The expertise of clinical specialists both in providing psychotherapy services as well as providing a bridge of understanding of sophisticated medical and surgical procedures places them in a unique position among the various disciplines offering mental health services. This paper provides an overview of the psychological issues that play a role in psychotherapy with this population and suggests specific clinical interventions and potential role expansion for psychiatric clinical specialists.