The nurse is assessing a 5-year-old patient with sickle cell anemia diagnosed with acute splenic sequestration. The patient is awake and sitting in bed playing video games with her sister. Her vital signs are stable, with a blood pressure of 110/66 mm Hg, heart rate of 98 beats per minute (bpm), respiratory rate of 20 breaths per minute, temperature of 37.5°C oral, and pain rating of 1 out of 5 on the FACES scale. On reassessment, which of the following findings would indicate that the patient's condition is deteriorating?
1) Decreased blood pressure
2) Increased heart rate
3) Decreased respiratory rate
4) Increased temperature
5) Increased pain rating