Table 4.

Chemical compatibility of admixtures under different storage conditions for 48 h

Lock solutions	Initial cefazolin concentration remaining (%), mean±SD			Initial gentamicin concentration remaining (%), mean±SD
	0 h	24 h	48 h	0 h	24 h	48 h
Admixture I
25°C with light	105.0±0.003	104.7±0.040	95.9±0.990	NA	NA	NA
25°C without light	105.0±0.003	102.7±0.450	95.8±0.680	NA	NA	NA
37°C with light	105.0±0.003	100.7±0.020	95.6±1.000	NA	NA	NA
37°C without light	105.0±0.003	99.2±0.070	95.0±0.080	NA	NA	NA
Admixture II
25°C with light	104.8±1.080	100.7±2.820	99.40±0.770	NA	NA	NA
25°C without light	104.8±1.080	96.8±0.410	95.74±0.450	NA	NA	NA
37°C with light	104.8±1.078	73.2±0.510*	43.5±2.900*	NA	NA	NA
37°C without light	104.8±1.078	75.0±1.930*	43.7±3.470*	NA	NA	NA
Admixture III
25°C with light	104.6±0.047	97.5±0.270	95.2±0.110	NA	NA	NA
25°C without light	104.6±0.047	104.9±0.110	95.0±0.050	NA	NA	NA
37°C with light	104.6±0.047	71.9±0.290*	52.4±0.040*	NA	NA	NA
37°C without light	104.6±0.047	75.5±0.230*	54.6±0.090*	NA	NA	NA
Admixture IV
25°C with light	95.9±0.004	104.0±0.360	99.6±0.120	99.1±0.430	97.0±0.380	97.0±0.140
25°C without light	95.9±0.004	104.2±0.920	101.1±1.750	99.1±0.430	95.5±0.630	95.8±0.380
37°C with light	95.9±0.004	82.1±0.020*	56.4±0.080*	99.1±0.430	96.0±0.220	97.0±0.330
37°C without light	95.9±0.004	86.4±0.130*	59.1±0.180*	99.1±0.430	97.8±0.250	95.3±0.440

*p<0.05. NA: Not applicable, SD: Standard deviation