asics gel netburner super-10 kinds of ECG word in mind

normal ECG:

1. not scale:

2. a scale (used in the clinic):

Each cell represents a small vertical

0.1mV, on behalf of each small grid horizontal 0.04s. (Because the ECG sensitivity and paper speed were 1mV/cm and 25mm / s.)

P wave: <0.25mV, <0.12s

QRS wave: 0.06 ~ 0.10s

PR interval: 0.12 ~ 0.20s

QT interval: <0.40s.

HR (heart rate): 60 ~ 100 times / min.

3. all 12 leads (limb leads Ⅰ, Ⅱ, Ⅲ, aVR, aVL, aVF; chest leads V1, V2, V3, V4, V5, V6):

paragraphs meaning:

Each cell represents a small vertical

0.1mV, on behalf of each small grid horizontal 0.04s. (Because the ECG sensitivity and paper speed were 1mV/cm and 25mm / s.)

10 种 ECG word in mind:

1, normal ECG: Needless to say, it may be to those few waves and have cut a lead down a wave gives you every three cycles, divided into a few lines to you to see,

to note. (P, QRS, T wave; PR, QT interval)

2, left ventricular hypertrophy: just look at more than 5 V5 cells, is down 5 vertical grid

; (ie V5 lead QRS complex> 0.25mV)

3, right ventricular hypertrophy: just look at V1 is greater than 2, the grid is up and down the vertical 2-cells

; (ie, QRS wave in lead V1 R / S> 1, is the R wave> S-wave amplitude)

4, atrial fibrillation: all the P - P, Q - Q, R - R, S - S, T - T no law, that is, the position of the P wave on the mess. Can be developed into ventricular fibrillation.

; (ie, the location of P-wave f-wave was replaced by the small sizes, while the QRS wave normal)

ventricular fibrillation: All P - P, Q - Q, R - R, S - S, T - T no regular, normal QRS wave disappeared, leaving only the sizes of the wavelet.

This extremely dangerous when the patient, ventricular arrest at any time, should be timely defibrillation.

5, sinus bradycardia: P wave normal, and each cardiac cycle, that is between two P-waves, also known as PP interval, is greater than five large cells (25 small cell), < / p>

; is about horizontal grid.

; (ie PP interval> 1.00s, can be calculated heart rate <60 beats / min)

6, sinus tachycardia: P wave normal, and each cardiac cycle is less than three large format (15 small cell) cheap herve leger dress, is about the grid.

; (ie PP interval <0.60s, can be calculated heart rate> 100 beats / min)

7, atrial contraction: in front of a few normal wave burberry website, then a Botticelli before (note: this wave pqrst shape is normal asics gel netburner super, just ahead of Bale),

; next wave is normal.

8, ventricular contraction: in front of a few normal waves, and then before a Botticelli (Note: At this time R-wave broadening), next is the normal wave

9, typical of myocardial ischemia: V4, V5, V6 ST-segment depression

10, acute myocardial infarction: Q-wave broadening + ST segment elevation arched upward, pay attention: anterior view V1, V2, V3, V4, V5, V6; under the wall to see Ⅱ, Ⅲ, aVF