42
edits
Basics: Difference between revisions
→How do I begin reading an ECG?
| Line 16: | Line 16: | ||
* farther to the right is the interpretation of the ECG written (this often misses in a 'fresh' ECG, but later the interpretation of the cardiologist or computer will be added) | * farther to the right is the interpretation of the ECG written (this often misses in a 'fresh' ECG, but later the interpretation of the cardiologist or computer will be added) | ||
* down left is the 'paper speed' (25mm/s on the horizontal ax), the sensitivity (10mm/mV) and the filter's frequency (40Hz, filters noise from eg. lights) | * down left is the 'paper speed' (25mm/s on the horizontal ax), the sensitivity (10mm/mV) and the filter's frequency (40Hz, filters noise from eg. lights) | ||
* finally there is a calibration on the ECG, on the beginning of every lead is a vertical block that shows how high 1mV is. So the height and depth of these | * finally there is a calibration on the ECG, on the beginning of every lead is a vertical block that shows how high 1mV is. So the height and depth of these signals are a measurement for the voltage. If this is not the set 10mm, there is something wrong with the machine. | ||
* further we have the ECG leads themselves of course, what these are will be discussed below. | * further we have the ECG leads themselves of course, what these are will be discussed below. | ||