Final answer:
The nurse should anticipate excessive fatigue and urinary frequency as presumptive signs of pregnancy in a 26-year-old client at 13 weeks gestation. These are subjective symptoms experienced by the pregnant individual.
Step-by-step explanation:
The presumptive (subjective) signs and symptoms of pregnancy that a nurse should anticipate in a 26-year-old client at 13 weeks of gestation are excessive fatigue and urinary frequency. Presumptive signs and symptoms are experienced by the pregnant individual but not necessarily measurable by an examiner. At around 13 weeks, many physiological changes are occurring. While symptoms such as Hegar's sign, quickening, Ballottement, and a positive pregnancy test are more objective and typically assessed by a healthcare provider, the signs like Chadwick's sign and uterine souffle are not as commonly experienced by the individual. On the other hand, excessive fatigue and urinary frequency are subjective sensations that a patient may report as she is personally experiencing them.