A case with a trend of QT interval prolongation due to the introduction of methadone to a pancreatic cancer patient on levofloxacin

Table 1 Results of blood sampling tests

Inspection item	Inspection unit	Day 14^a	Day 16^a	Day 22^a
total bilirubin	mg/dL	2.15	2.64	4.14
aspartate aminotransferase	U/L	139	112	176
alanine aminotransferase	U/L	81	94	120
lactate dehydrogenase	U/L	212	189	280
alkaline phosphatase	U/L	912	926	1147
γ-glutamyl transpeptidase	U/L	2306	2394	2119
blood urea nitrogen	mg/dL	18	16	16
serum creatinine	mg/dL	0.6	0.6	0.82
uric acid	mg/dL	4.2	4.2	4.9
estimated glomerular filtration rate	mL/min/1.73m²	100.6	100.6	71.5
albumin	g/dL	2.3	2.4	2.4
Na	mEq/L	132	131	130
K	mEq/L	4.4	4.3	4.8
Cl	mEq/L	94	94	95
Ca	mg/dL	8.8	8.9	8.8
Mg	mg/dL	1.9	1.9	2.0

^aThe day of starting methadone (Day 14), the 3rd day (Day 16), and the 8th day (Day 22) are shown

ISSN: 2055-0294