Table 4.

The effect of Ca-gluconate on non-rhythm electrocardiogram pathologies caused by hyperkalemia

Nonrhythm ECG pathologies due to hyperkalemia	Number of nonrhythm ECG pathologies			P
	Due to hyperkalemia at admission	After calcium gluconate	Recovered with calcium gluconate
Decreased P wave amplitude, n (%)	58 (100)	58 (100)	0 (0)	1.000*
P wave-amplitude (mm), mean±SD	1.2±0.5	1.2±0.5	-	0.929**
Flattened P wave, n (%)	6 (100)	5 (83)	1 (17)	1.000*
Widened P wave, n (%)	33 (100)	32 (97)	1 (3)	1.000*
P wave-duration (msn), mean±SD	132±14	132±14	-	0.317**
Prolonged QRS interval, n (%)	9 (100)	9 (100)	0 (0)	1.000*
QRS interval-duration (msn), mean±SD	130±15	126±11	-	0.083**
Shortened QTc interval, n (%)	8 (100)	8 (100)	0 (0)	1.000*
QTc interval-duration (msn)	347±15	347±15	-	0.317**
Peaked T wave, n (%)	41 (100)	39 (95)	2 (5)	0.500*
T wave-amplitude (mm), mean±SD	8.8±3	8.5±3.2	-	0.180**
ST segment elevation, n (%)	9 (100)	9 (100)	0 (0)	1.000*
ST elevation-amplitude (mm), mean±SD	2.8±1.8	2.6±1.6	-	0.317**
Total Non-rhythm ECG pathologies, n (%)	164 (100)	160 (98)	4 (2)	0.125*

*Probability (P) value of McNemar test used to compare categorical variables in dependent groups (P<0.05), **Probability (P) value of Wilcoxon test used to compare numerical variables that do not conform to the normal distribution in dependent groups (P<0.05). ECG: Electrocardiogram, SD: Standard deviation