Select the best response from the answer choices following each question.
2. Which one of the following physiological changes of the cardiac myocytes results in a decreased negative net charge inside the cell?
3. Refer to the graph below. This plot pattern depicts the electrical measurement of a:
4. A frontal QRS axis of −15° is referred to as which of the following axis deviations?
5. An isoelectric vector has which of the following ECG characteristics?
6. The Einthoven triangle refers to which of the following ECG leads?
7. What direction does the septal vector travel in a normal impulse conduction of the heart?