Hyperchloremic metabolic acidosis due to saline absorption during laser enucleation of the prostate: a case report

JA Clinical Reports

Table 1 Perioperative blood gas and laboratory indices and evaluation of acid-base status using the simplified Stewart approach

	Preoperative	Intraoperative	ICU admission	First postoperative day
Hb (g/dl)	15.7	11.7	14.2	14.9
Albumin (g/dl)	3.9	2.2	2.9	2.5
Na (mmol/l)	142	145	145	143
Cl (mmol/l)	105	120	114	108
pH	n/a	7.217	7.236	7.358
HCO₃^-	n/a	16.7	17.6	20.8
Lactate (mmol/l)	n/a	0.8	0.9	2
NaCl base excess effect	2	-10	-4	0
Albumin base-excess effect	0.8	5	3.3	4.2
Lactate base-excess effect	n/a	0.2	0.1	−1

n/a not available
Hemoglobin, albumin, Na, and Cl levels were measured at the central laboratory, while other parameters were analyzed using a blood gas analyzer (Cobas B221, Roche Diagnostics, Basel, Switzerland). NaCl base excess effect, [Na⁺]-[Cl^-]-35 (mEq/l); albumin base excess effect, 0.25X(42-Alb (g/l)) (mEq/l); lactate base excess effect, 1-Lactate (mmol/l) (mEq/l) (from reference [13])