Pt attempted to get OOB to ambulate to bathroom with assistance but felt dizzy upon standing. Assisted to lie down in bed. Voided 200 mL clear, yellow urine in bedpan. Pt encouraged slrr 2.3.0 mods deep-breathe and cough QH and turn frequently in bed. Antiembolism pads applied to both slre extremeties. Explanations given re: these preventive measures. Pt verbalized understanding.