A random sample of middle age sedentary males was selected from four census tracts, and each man was examined for coronary artery disease. All those having the disease were excluded from the study. All others were randomly assigned to either an exercise group, which followed for a two-year program of systematic exercise or to a control group, which had no exercise program. Both groups were observed semiannually for any difference in the incidence of coronary heart disease.
What type of study (study design) you would assign to this information? Why?

Discuss the 2 major types of diabetes insipidus (central and nephrogenic).

Characteristics of moderate sedation include: a. difficult arousal b. independent and continuous maintenance of a patent airway c. no experienced amnesia d. hemodynamic instability

Mr rogers is 2 days postoperative of a thoracotomy of removal of a malignant mass in his left chest. his pain is being managed via epidural catheter with morphine. as the nurse assumes care of mr rogers, he is alert and fully oriented and states that his current pain is 2 on a 1 -to-10 scale. his vital signs are 37.8-92-12, 138/82. what are benefits of epidural versus systemic administration of opioids? the nurse monitors mr roger’s respiratory status and vital signs every 2 hours. what is the rationale for this frequent assessments? the nurse monitors mr rogers for what other complications of epidural anelgesis?