Impact of Different Serum Potassium Levels on Postresuscitation Heart Function and Hemodynamics in Patients with Nontraumatic Out-of-Hospital Cardiac Arrest
Table 2
Serum potassium levels influence the initial postresuscitation heart function and hemodynamic status.
Total patients ()
Serum potassium level
value
Low (K+ < 3.5, )
Normal (K+ = 3.5–5, )
High (K+ > 5, )
Number (%)
Number (%)
Number (%)
Number (%)
Heart rate
<0.001
Tachycardia
121 (25.3)
17 (35.4)
43 (29.9)
61 (21.3)
Normal
206 (43.0)
23 (47.9)
75 (52.1)
108 (37.6)
Bradycardia
152 (31.7)
8 (16.7)
26 (18.0)
118 (41.1)
Blood pressure
0.353
Hypertension
149 (31.1)
11 (22.9)
49 (34.0)
89 (31.0)
Normal
142 (29.6)
16 (33.3)
47 (32.6)
79 (27.5)
Hypotension
188 (39.3)
21 (43.8)
48 (33.4)
119 (41.5)
Heart rhythm
0.001
Sinus rhythm
291 (60.8)
33 (68.8)
103 (71.5)
155 (54.0)
Nonsinus rhythm
188 (39.2)
15 (31.2)
41 (28.5)
132 (46.0)
Urine output (median)
<0.001
>1 (ml/kg/hr)
174 (36.3)
35 (72.9)
51 (35.4)
88 (30.7)
<1 (ml/kg/hr)
305 (63.7)
13 (27.1)
93 (64.6)
199 (69.3)
Blood pH
Acidosis (<7.35)
374 (78.1)
20 (41.7)
102 (70.8)
252 (87.8)
<0.001
Nonacidosis (>7.35)
105 (21.9)
28 (58.3)
42 (29.2)
35 (12.2)
Significant factors; the serum K+ level is given in units of mmol/L.
