B-Type Natriuretic Peptide in the Critically Ill with Acute Kidney Injury

Table 4

Median of creatinine and BNP during 48 hours for patients developing AKI or not any time during their ICU stay.

		AKI; (9)	No-AKI; (17)	𝑃 value
Serum creatinine, mg/dL	Baseline	1.76; (1.01 to 1.90)	0.81; (0.68 to 0.89)	.002
	24 hours	1.70; (1.07 to 2.53)	0.70; (0.63 to 0.89)	.001
	48 hours	1.56; (0.98 to 2.47)	0.74; (0.62 to 0.82)	.001
Plasma BNP, pg/mL	Baseline	510; (232 to 832)	197; (36 to 353)	.038
	24 hours	552; (344 to 948)	124; (47 to 407)	.019
	48 hours	949; (297 to 1435)	104; (29 to 236)	.002

BNP: B-type or brain natriuretic peptide.
AKI: Acute kidney injury.
ICU: Intensive care unit.