Prospective comparison of helical CT of the abdomen and pelvis without and with oral contrast in assessing acute abdominal pain in adult Emergency Department patients.

Purpose: This prospective study compares the agreement of nonenhanced helical computed tomography (NECT) with oral contrast-enhanced computed tomography (CECT) in Emergency Department (ED) patients presenting with acute abdominal pain.

Materials And Methods: One hundred eighteen patients presenting to the ED with acute abdominal pain undergoing CT were enrolled over a 13-month period using convenience sampling. Exclusion criteria included acute trauma, pregnancy, unstable patients, and patients suspected of having urinary calculi.

Does morphine change the physical examination in patients with acute appendicitis?

The objective of this study was to determine if judicious dosing of morphine sulfate can provide pain relief without changing important physical examination findings in patients with acute appendicitis. We conducted a prospective, randomized, double-blind crossover design. Patients scheduled for appendectomy were randomized to two groups.

How reliable are pain scores? A pilot study of 20 healthy volunteers.

Introduction: Pain scales such as the 100-MM Visual Analog Scale and the 10-point Numeric Rating Scale are used to describe pain intensity. The Visual Analog Scale and the Numeric Rating Scale provide accurate descriptors for a patient's perceived level of pain. But how accurate or reliable is a patient's perception of pain?

Methods: To test the relationship between the intensity of the pain stimulus and pain perception, we devised an experiment using a convenience sample of 20 healthy adult volunteers.