Assertion : ECG is a graphical representation of the electrical activity of heart cardiac cycle.
Reason : To obtain a standard ECG, patient is connected to machine with two leads, one with left wrist and one with left ankle.

Options

A. If both Assertion & Reason as true & the Reason is a correct explanation of the assertion.
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.

Answer

To analyze the given assertion and reason, we can follow these steps:

### Step 1: Understand the Assertion
The assertion states that "ECG is a graphical representation of the electrical activity of the heart during the cardiac cycle."
- **Explanation**: An Electrocardiogram (ECG) is indeed a graphical representation that shows the electrical impulses that trigger each heartbeat, reflecting the heart's activity throughout the cardiac cycle.

### Step 2: Understand the Reason
The reason provided is that "To obtain a standard ECG, the patient is connected to a machine with two leads, one with the left wrist and one with the left ankle."
- **Explanation**: This statement is incorrect. To obtain a standard ECG, a patient is typically connected using three leads: two on the wrists (one on each wrist) and one on the left ankle.

### Step 3: Evaluate the Truth of Each Statement
- The assertion is true because it accurately describes what an ECG represents.
- The reason is false because it incorrectly states the number of leads used to obtain a standard ECG.

### Step 4: Conclusion
Based on the evaluations:
- The assertion is true, but the reason is false.

### Final Answer
The correct option is: **Assertion is true, but the reason is false.**

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