A 28-year-old woman with a history of recurrent episodes of muscle pain and myoglobinuria during prolonged fasting or intense exercise is admitted with acute rhabdomyolysis. Serum creatine kinase is 8,500 U/L. Muscle biopsy shows lipid accumulation. Genetic testing confirms a mutation in the CPT II gene. During the acute episode, which of the following metabolic changes would you expect in her blood?