You have just received the change-of-shift report in the burn unit. Which client requires the most immediate assessment or intervention?

A 22-year-old admitted 4 days previously with facial burns due to a house fire who has been crying since recent visitors left

A 34-year-old who returned from skin-graft surgery 3 hours ago and is complaining of level 8 pain (0-10 pain scale)

A 45-year-old with deep partial-thickness leg burns who has a temperature of 102.6° F and a blood pressure of 98/46

A 57-year-old who was admitted with electrical burns 24 hours ago and has a blood potassium level of 5.0 mEq/L