Managing postacute malnutrition (undernutrition) risk

Although a direct correlation between poor nutrition status and increased risk of readmission has yet to be established, it is reasonable to assume that patients who are identified as undernourished while hospitalized would be "at increased risk of adverse outcomes" following discharge. Also, the evidence that links nonadherence to dietary prescriptions after discharge, with increased readmissions in patients with heart failure (HF), is fairly robust. Nutrition screening prior to discharge should be mandated, just as it is at admission. However, the criteria to assess a patient's ability to adequately and appropriately nourish themselves after discharge are very different from those used to diagnose and treat malnutrition on admission or during a hospital stay. The U.S. healthcare environment germane to the readmissions rates policy that was adopted for implementation in October 2012 by the Centers for Medicare & Medicaid Services is characterized. Factors critical to the successful development and implementation of a post-acute nutrition care plan are described. Nutrition-related contributors to readmissions in HF are delineated. Transitional care models that could be adapted to enhance nutrition care plan efficacy are identified, as is the need to adopt a multidisciplinary approach to nutrition in transitional care that includes care coordination and routine follow-up. An evidence-based systematic approach to determine those patients in whom palliative vs restorative nutrition care is appropriate needs to be developed.

Thirst in critically ill patients: from physiology to sensation

Critically ill patients often report distressful episodes of severe thirst, but the complex biochemical, neurohormonal mechanisms that regulate this primal sensation still elude clinicians. The most potent stimuli for thirst are subtle increases in plasma osmolality. These minute changes in osmolality stimulate central osmoreceptors to release vasopressin (also known as antidiuretic hormone). Vasopressin in turn acts on the kidneys to promote the reabsorption of water to correct the increased osmolality. If this compensatory mechanism fails to decrease osmolality, then thirst is triggered to motivate drinking. In contrast, thirst induced by marked volume loss, or hypovolemic thirst, is subject to the tight osmoregulation of the renin-angiotensin aldosterone system and accompanying adrenergic agonists. Understanding the essential role that thirst plays in salt and water regulation can provide clinicians with a better appreciation for the complex physiology that underlies this intense sensation.

Effect of growth hormone replacement on wound healing in healthy older men

The secretion of growth hormone, an important anabolic agent, declines with aging. We hypothesize that growth hormone levels (measured as insulin-like growth factor-1) correlate with postoperative tissue repair in otherwise healthy, elderly persons. The goal was to determine whether growth hormone supplementation can improve wound healing in this circumstance. We conducted a randomized controlled double-blind trial of 6 months of growth hormone replacement or placebo in 28 healthy older men (>69 years of age) with low baseline plasma insulin-like growth factor-1. Growth hormone doses were adjusted to elevate insulin-like growth factor-1 to levels expected in younger adults. Wound healing was tested by implanting 10 cm expanded polytetrafluoroethylene porous tubes for 10 days, then measuring the content of collagen (as hydroxyproline), DNA, and total protein. Hydroxyproline content was 15% greater in the wounds of the growth hormone group (n = 13) compared with the placebo group (n = 15), (4.52 +/- 0.94 versus 3.92 +/- 0.78 microg/cm; p = 0.04). Therefore, healthy older men who took growth hormone had enhanced reparative collagen deposition during the wound healing process. This action may be clinically useful after selected surgery or trauma in the elderly.

Factors influencing patient assignment to level 2 and level 3 within the 5-level ESI triage system

INTRODUCTION

Prospectively assessing factors that influence triage nurse assignment of patients to the higher risk level 2 compared to the lower risk level 3 has not previously been explored within the 5-level Emergency Severity Index (ESI) triage system. Considering the large amount of information available about the patient, less experienced triage nurses often struggle in deciding what patient information is truly relevant when assessing if a high-risk situation exists. The primary aim of this study was to identify specific factors used by triage nurses to differentiate level 2 patients from level 3 patients.

METHODS

A convenience sample of triage nurses was recruited from 2 ED sites. If at the completion of the nurse-patient triage interaction the nurse assigned the patient to either level 2 or level 3, the triage nurse then completed a questionnaire related to factors that influenced patient assignment.

RESULTS

Overall, 18 triage nurses participated in the study with a total of 334 nurse-patient triage interactions collected. Patient age, vital signs, and need for a timely intervention were found to be significant factors that influenced patient assignment to level 2 while expected number of resources influenced patient assignment to level 3.

DISCUSSION

Utilizing experienced triage nurses on average, this study identified specific, objective factors that, combined with factors already delineated in the ESI Version 4 Implementation Manual, have useful implications for less experienced triage nurses by providing a more comprehensive and relevant foundation for data gathering and decision making.

Physical activity in Arab women in Southern California

BACKGROUND

The limited research of Arab women suggests that most are sedentary. Given the known health benefits of physical activity suggests that the study of physical activity of women in Southern California where the climate favors year round outdoor activities is warranted.

AIMS

To describe Arab women's cardiovascular risk factors (CVD): physical activity levels, self-efficacy, and determinants of physical inactivity and their preferences for physical activity programs.

METHODS

This cross-sectional design used the International Physical Activity Questionnaire (IPAQ), Exercise Self-Efficacy Scale, Choose to Move Questionnaire, and "How America Measures Up" Questionnaire.

RESULTS

The mean age of the 180 women was 37.6 (±12.9). Most (91.1%) had ≥high school education, 68.9% were married, and 24.4% were below poverty level. CVD risk factors were: hypertension 20.6%; hyperlipidemia 21.1%; diabetes 10%; and excess weight in 60%. Their self-efficacy scores were 39.2 (±18.2); and 46.2% were sedentary. A logistic regressions analysis found statistically significant determinant(s) for physical inactivity performance were low self-efficacy score and "not being born in the U.S."

CONCLUSIONS

These young Arab women are considerably physically inactive and overweight. The findings from our study can guide culturally relevant health promotion programs in Arab women who have unique needs and preferences.

Cultural factors associated with antihypertensive medication adherence in Chinese immigrants

BACKGROUND

Little is known about hypertension control and cultural factors related to medication adherence in Chinese immigrants.

OBJECTIVE

: The purpose of this study was to characterize Chinese immigrants with hypertension and to examine what cultural factors are associated with medication adherence.

METHODS

A cross-sectional design was used. Data were gathered from a convenience sample of 200 subjects recruited in an Asian outpatient clinic in the San Francisco Bay Area using self-report questionnaires and blood pressure measurements. Participants were Chinese immigrants 18 years old and older, taking antihypertensive medications, and able to speak Mandarin.

RESULTS

The mean age was 71 (+/-10) years. Half were men (50%). Most were married (70%), and reported an annual family income of <20,000 dollars (71%) and an average length of stay in the United States of 13 (+/-7) years. Medication adherence was reported by 75%, although only 51% had controlled hypertension. Four of 8 cultural factors were statistically significant predictors for medication nonadherence: lower perceived susceptibility [OR = 3.77 (95% CI 1.19, 12.01)]; higher perceived benefit of Chinese herbs [OR = 2.21 (95% CI 1.02, 4.81)]; lower perceived benefit of Western medications for hypertension [OR = 2.78 (95% CI 1.13, 6.84)]; and longer length of stay in the United States [OR = 2.48 (95% CI 1.12, 5.50)].

CONCLUSIONS

Four cultural factors were identified as significant predictors of medication nonadherence in this sample. These findings can guide culturally appropriate nursing interventions for hypertension management in Chinese immigrants.

Nutritional risk and low weight in community-living older adults: a review of the literature (1995-2005)

Although many studies have examined weight loss and low weight in institutionalized persons, there has been little research exploring the community-living older adult's nutritional risk. The purpose of this literature review (1995-2005) is to describe our current understanding of nutritional risk and low weight in community-living older adults 65 years old and older. Computerized database searches and footnote reviews were used to find published studies on nutritional risk and low weight. Twenty-two research articles are reviewed and summarized. Each study was reviewed according to preset criteria.

Nutritional Adequacy in Patients Receiving Mechanical Ventilation Who Are Fed Enterally

• Background Inadequate nutritional intake in critically ill patients can lead to complications resulting in increased mortality and healthcare costs. Several factors limit adequate nutritional intake in intensive care unit patients given enteral feedings.

• Objective To examine the adequacy of enteral nutritional intake and the factors that affect its delivery in patients receiving mechanical ventilation.

• Methods A prospective, descriptive design was used to study 60 patients receiving enteral feedings at target or goal rate. Energy requirements were determined for the entire sample by using the Harris-Benedict equation; energy requirements for a subset of 25 patients were also determined by using indirect calorimetry. Energy received via enteral feeding and reason and duration of interruptions in feedings were recorded for 3 consecutive days.

• Results Mean estimated energy requirements (8996 kJ, SD 1326 kJ) and mean energy intake received (5899 kJ, SD 3058 kJ) differed significantly (95% CI 3297-3787; P &lt; .001). A total of 41 patients (68.3%) received less than 90% of their required energy intake, 18 (30.0%) received within ±10%, and 1 (1.7%) received more than 110%. Episodes of diarrhea, emesis, large residual volumes, feeding tube replacements, and interruptions for procedures accounted for 70% of the variance in energy received (P&lt;.001). Procedural interruptions alone accounted for 45% of the total variance. Estimated energy requirements determined via indirect calorimetry and mean energy received did not differ.

• Conclusions Most critically ill patients receiving mechanical ventilation who are fed enterally do not receive their energy requirements, primarily because of frequent interruptions in enteral feedings.

Nutritional adequacy in patients receiving mechanical ventilation who are fed enterally

BACKGROUND

Inadequate nutritional intake in critically ill patients can lead to complications resulting in increased mortality and healthcare costs. Several factors limit adequate nutritional intake in intensive care unit patients given enteral feedings.

OBJECTIVE

To examine the adequacy of enteral nutritional intake and the factors that affect its delivery in patients receiving mechanical ventilation.

METHODS

A prospective, descriptive design was used to study 60 patients receiving enteral feedings at target or goal rate. Energy requirements were determined for the entire sample by using the Harris-Benedict equation; energy requirements for a subset of 25 patients were also determined by using indirect calorimetry. Energy received via enteral feeding and reason and duration of interruptions in feedings were recorded for 3 consecutive days.

RESULTS

Mean estimated energy requirements (8996 kJ, SD 1326 kJ) and mean energy intake received (5899 kJ, SD 3058 kJ) differed significantly (95% CI 3297-3787; P < .001). A total of 41 patients (68.3%) received less than 90% of their required energy intake, 18 (30.0%) received within +/-10%, and 1 (1.7%) received more than 110%. Episodes of diarrhea, emesis, large residual volumes, feeding tube replacements, and interruptions for procedures accounted for 70% of the variance in energy received (P<.001). Procedural interruptions alone accounted for 45% of the total variance. Estimated energy requirements determined via indirect calorimetry and mean energy received did not differ.

CONCLUSIONS

Most critically ill patients receiving mechanical ventilation who are fed enterally do not receive their energy requirements, primarily because of frequent interruptions in enteral feedings.

End-of-life issues in intensive care units: a national random survey of nurses' knowledge and beliefs

OBJECTIVE

To investigate the knowledge, beliefs, and ethical concerns of nurses caring for patients dying in intensive care units.

METHODS

A survey was mailed to 3000 members of the American Association of Critical-Care Nurses. The survey contained various scenarios depicting end-of-life actions for patients: pain management, withholding or withdrawing life support, assisted suicide, and voluntary and nonvoluntary euthanasia.

RESULTS

Most of the respondents (N = 906) correctly identified the distinctions among the end-of-life actions depicted in the scenarios. Almost all (99%-100%) agreed with the actions of pain management and withholding or withdrawing life support. A total of 83% disagreed with assisted suicide, 95% disagreed with voluntary euthanasia, and 89% to 98% disagreed with nonvoluntary euthanasia. Most (78%) thought that dying patients frequently (31%) or sometimes (47%) received inadequate pain medicine, and almost all agreed with the double-effect principle. Communication between nurses and physicians was generally effective, but unit-level conferences that focused on grief counseling and debriefing staff rarely (38%) or never (49%) occurred. Among the respondents, 37% had been asked to assist in hastening a patient's death. Although 59% reported that they seldom acted against their consciences in caring for dying patients, 34% indicated that they sometimes had acted against their conscience, and 6% had done so to a great extent.

CONCLUSIONS

Intensive care unit nurses strongly support good pain management for dying patients and withholding or withdrawing life-sustaining therapies to allow unavoidable death. The vast majority oppose assisted suicide and euthanasia. Wider professional and public dialogue on end-of-life care in intensive care units is warranted.

End-of-life issues in intensive care units: a national random survey of nurses' knowledge and beliefs

OBJECTIVE: To investigate the knowledge, beliefs, and ethical concerns of nurses caring for patients dying in intensive care units. METHODS: A survey was mailed to 3000 members of the American Association of Critical-Care Nurses. The survey contained various scenarios depicting end-of-life actions for patients: pain management, withholding or withdrawing life support, assisted suicide, and voluntary and nonvoluntary euthanasia. RESULTS: Most of the respondents (N = 906) correctly identified the distinctions among the end-of-life actions depicted in the scenarios. Almost all (99%-100%) agreed with the actions of pain management and withholding or withdrawing life support. A total of 83% disagreed with assisted suicide, 95% disagreed with voluntary euthanasia, and 89% to 98% disagreed with nonvoluntary euthanasia. Most (78%) thought that dying patients frequently (31%) or sometimes (47%) received inadequate pain medicine, and almost all agreed with the double-effect principle. Communication between nurses and physicians was generally effective, but unit-level conferences that focused on grief counseling and debriefing staff rarely (38%) or never (49%) occurred. Among the respondents, 37% had been asked to assist in hastening a patient's death. Although 59% reported that they seldom acted against their consciences in caring for dying patients, 34% indicated that they sometimes had acted against their conscience, and 6% had done so to a great extent. CONCLUSIONS: Intensive care unit nurses strongly support good pain management for dying patients and withholding or withdrawing life-sustaining therapies to allow unavoidable death. The vast majority oppose assisted suicide and euthanasia. Wider professional and public dialogue on end-of-life care in intensive care units is warranted.

Quality of life and self-care management strategies of PLWAs with chronic diarrhea

A case control design was used to examine quality of life and self-care management strategies in persons living with AIDS (PLWAs) with chronic diarrhea. PLWAs without chronic diarrhea (n = 20) as compared to those with chronic diarrhea (n = 20) reported significantly higher general health perceptions (p = .028). In contrast, comparisons on symptom status scores revealed that PLWAs without chronic diarrhea reported greater fatigue (p = .05), greater psychological distress (p = .005), and greater gastrointestinal discomfort (p = .01). Although the intensity of chronic diarrhea was reported as moderate to severe by 85% of the sample, no single category of self-care management strategies was used by more than 65% of respondents. The number of categories of self-care management activities was significantly correlated with general health perceptions. The study findings support the need to test nursing interventions aimed at improving symptom management in chronic diarrhea and facilitating self-care behaviors including those focused on increasing adherence to prescribed therapeutic regimens.

The utilization of automated ST segment analysis in the determination of myocardial ischemia

Perioperative cardiac morbidity is a recognized complication of anesthesia and surgery. Morbidity includes myocardial infarction, new onset of unstable angina, congestive heart failure, and arrhythmias. Almost one third of all patients undergoing noncardiac surgery may be at increased risk of cardiac complications by virtue of age, coronary artery disease (CAD), or presence of two or more risk factors for CAD. Although postoperative ischemia has been identified as a significant risk factor for morbidity, automated ST segment analysis systems available with the new generation bedside monitors have not been used to identify ischemic episodes in patients recovering from anesthesia. Twenty-eight patients, age 41 to 80 years, were monitored in the postanesthesia care unit for ST segment changes (mean monitoring period, 97 minutes). Four patients had ischemic episodes from 7 to 44 minutes, and two of these patients had subsequent postoperative morbidity. All episodes were clinically silent. Automated ST segment analysis is an easily used technology that shows promise as a means of early detection of clinically silent perioperative myocardial ischemia.