Table 2.
ECG knowledge among ICU nurses (N = 357).
| ECG statement | True/False | Correct answers | Mean (SD) | |
|---|---|---|---|---|
| n | % | |||
| The correct order of ECG waves and intervals includes “T wave, P wave, QRS complex, PR interval, ST interval, U wave”. | False | 148 | 41.5 | |
| If in an ECG the P wave does not appear, there is a conduction problem between the atriums | True | 308 | 86.3 | |
| The P wave represented right and left atrial repolarization | False | 198 | 55.5 | |
| QRS complex represented right and left ventricular depolarization | True | 321 | 89.9 | |
| Pathologic Q waves are a sign of previous myocardial infarction | True | 245 | 68.6 | |
| Atrial fibrillation could be a regular rhythm | False | 264 | 73.9 | |
| ECG can detect left ventricular hypertrophy (LVH) | True | 217 | 60.8 | |
| In Second-degree AV block type II, the PR interval is not constant with conducted beats, and some P waves will be present without a QRS complex | False | 58 | 16.2 | |
| Atrial flutter is characterized by a regular ventricular rhythm with a consistent R-R interval | True | 189 | 52.9 | |
| Ventricular fibrillation is characterized by no identifiable P waves and T waves, but the QRS complex is identifiable | False | 175 | 49.0 | |
| Mean score | 5.95 (2.14) | |||
n, number of participants; %, percentage; SD, standard deviation.