Week 2 Cardiology Quizz

What is the purpose of using electrodes in ECG?

• To monitor oxygen levels in the blood

• To detect and record the electrical activity of the heart.

• To assess lung function

• To measure blood pressure

What is the normal duration of the PR interval?

• 0.12 to 0.20 seconds

• 0.05 to 0.10 seconds

• 0.25 to 0.30 seconds

• 0.15 to 0.25 seconds

Which lead is considered the standard limb lead for ECG?

• Lead IV

• Lead III

• Lead I

• Lead II

What does the T wave represent in an ECG?

• Atrial depolarization

• AV node repolarization

• Ventricular repolarization

• SA node firing

What is the significance of the ST segment in an ECG?

• The ST segment measures blood pressure

• The ST segment indicates the heart rate

• The ST segment is significant for detecting myocardial ischemia, injury, and infarction.

• The ST segment shows the oxygen saturation level

What is the most common method of recording an ECG?

• MRI scan

• Blood test

• X-ray

• Electrocardiography (ECG) using electrodes

What is crucial for obtaining a clear and reliable ECG signal?

• Amplifier Calibration

• Lead Wiring

• Electrode Placement

• Sampling Rate

Which of the following is true about myoglobin?

• This appears slowly after myocardial necrosis but has not achieved widespread use in cardiac practice.

• Myoglobin can only be found in muscle tissue and would be present in the bloodstream if there is damaged muscle tissue.

• Rises in the first 30 minutes and slowly excreted from the kidneys.

• Since it has no specificity, positive values are important rather than negative values.

Sebutkan gambaran EKG berikut ini

• PVC couplet

• PVC bigeminy

• PVC trigeminy

• PVC quadrigeminy

Kelainan apakah yang terjadi pada EKG ini?

• Bifasicular block (RBB + LAFB)

• Bifasicular block (RBB + LAPB)

• RBBB dan LBBB

• Trifasicular block