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3. One cardiaca diac cycle (heartbeat) takes approximately ately how long? a. 0.2 second b. 0.4 second c. 0.6 second d. 0.8 s

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3)Option D

0.8 seconds.

One cardiac cycle takes approximately 0.8 seconds.

Healthy adults have 65 to 75 cardiac cycles per minute.

4) Option. A

QRS complex.

Ventricular depolarization is indicated by QRS complex.

5)Option A

Precordial.

Another name for V leads is precordial.

6)Option C

10.

12 lead ECG 10 leads are placed on the patient limbs and on chest.

7)Option D

Ventricular fibrillation is a life threatening arrhythmias.

8)Option A

To deliver a counter shock to restore normal heat rhythm.

Defibrillator prevents or correct the arrhythmias.

9) Option B

Avoid stimulants like coffee,caffeine and tobbaco.

10) Option C

PTCA Percutaneous Transluminal Coronary Angioplasty.

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