جب کارڈیک سیل میں بجلی کا تسلسل پیدا ہوتا ہے تو کیا ہوتا ہے؟
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A. None of these
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B. The resting potential turns into an action potential
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C. The heart stop beating
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D. The cell shrinks
Explanation
An electrical impulse causes the cardiac cell's resting potential to convert into an action potential.
This action potential leads to contraction of heart muscle cells, enabling the heart to beat.
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A. Ventricular depolarization
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B. Atrial depolarization
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C. Ventricular contraction
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D. Atrial contraction
Explanation
The P wave and PR segment is an integral part of an electrocardiogram (ECG).
It represents the electrical depolarization of the atria of the heart.
Typically, a small positive deflection from the isoelectric baseline occurs just before the QRS complex.
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A. None of these
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B. >100bpm
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C. <100bpm
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D. <60bpm
Explanation
- Tachycardia is:>100bpm
- **
- Tachycardia is a medical term that is used for a heartbeat rate of over 100 beats per minute.
- tachycardia refers to a heart rate that's too fast. Depending on your age and physical condition
- in adults, a heart rate of more than 100 beats per minute (BPM) is considered too fast.
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A. 60bpm
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B. 90bpm
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C. 80bpm
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D. : None of these
Explanation
- Bradycardia is any pulse under:60bpm
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- Bradycardia is a very serious problem.
- In this situation, the heart can't pump blood properly
- Bradycardia is a pulse of fewer than 60 beats per minute
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