1) The author, a student nurse, found that a postoperative patient was in pain and had a distended abdomen, contrary to the previous nurse's assessment that the patient was confused.
2) Ultrasound revealed the patient had a residual urine volume of 998mls. Inserting a catheter drained 1650mls of urine, relieving the patient's pain and discomfort.
3) The author learned the importance of comprehensive assessment, advocacy, and challenging colleagues' practices that could put patients at risk, to fulfill their duty of care and prevent potential health issues.