. 2024 Oct 12;9:2. doi: 10.21037/acr-23-167

Table 2. Major laboratory findings and clinical syndromes of the patient during encephalopathy.

Chemotherapy cycle	Time of onset	Syndromes	Laboratory findings	Head CT scan	Recovery time
Fourth cycle	After 40 hours of 5-FU infusion	Nervous system: slow reaction, unclear consciousness, unresponsive to stimuli, and stiff limbs	Ammonia 117.0 μmol/L, lactate was 9.1 mmol/L	Age-related brain changes	Approximately 12 hours
Fourth cycle	After 40 hours of 5-FU infusion	Digestive system: decreased appetite, without symptoms of diarrhea	Ammonia 117.0 μmol/L, lactate was 9.1 mmol/L	Age-related brain changes	Approximately 12 hours
Fifth cycle	After 41 hours of 5-FU infusion	Nervous system: unclear consciousness, unresponsive to stimuli, and stiff limbs	Ammonia 349.0 μmol/L, lactate 7.6 mmol/L	Due to the emergency situation, no head CT scan was conducted	Approximately 12 hours
Fifth cycle	After 41 hours of 5-FU infusion	Digestive system: increased frequency of bowel movements	Ammonia 349.0 μmol/L, lactate 7.6 mmol/L		Approximately 12 hours

CT, computed tomography; 5-FU, 5-fluorouracil.