Final answer:
A nurse should expect to find vaginal pressure as the main manifestation in a client who is 1 day postpartum with a vaginal hematoma.
Step-by-step explanation:
When assessing a client who is 1 day postpartum with a vaginal hematoma, a nurse should expect to find vaginal pressure as the primary manifestation. A vaginal hematoma may cause a sensation of pressure due to the collection of blood within the vaginal tissues. Other manifestations of a vaginal hematoma can include pain and swelling, but they were not listed as options. While lochia serosa is a normal postpartum vaginal drainage that becomes thinner and pinkish after the initial 2-3 days of lochia rubra, and lochia alba follows as a creamy or watery discharge, these are not indicative of a hematoma. Additionally, intermittent vaginal pain may be experienced but is not as distinctive as pressure. Yellow exudate vaginal drainage could signal an infection and is not characteristic of a hematoma.