To solve this problem, we need to identify the incorrect statement in relation to coronary artery disease (CAD).
1. Understanding Coronary Artery Disease (CAD):
Coronary artery disease occurs when the arteries that supply blood to the heart muscle become narrowed or blocked due to the accumulation of fatty deposits, cholesterol, and other substances. The condition is commonly associated with factors such as smoking, high cholesterol, and hypertension.
2. Evaluating the Options:
Let's go through the options:
3. Conclusion:
All the statements provided are correct in relation to coronary artery disease. Therefore, there is no incorrect statement in the options provided.
Final Answer:
The correct answer is Option D: "Angina pectoris is a warning signal," as it is a valid statement in CAD.
Normal wave pattern of ECG wave form is shown in the figure below. Identify the missing wave from the wave form. 
A patient presents with no pulse, and the ECG shows the following rhythm. What is the next appropriate step? 
If the roots of $\sqrt{\frac{1 - y}{y}} + \sqrt{\frac{y}{1 - y}} = \frac{5}{2}$ are $\alpha$ and $\beta$ ($\beta > \alpha$) and the equation $(\alpha + \beta)x^4 - 25\alpha \beta x^2 + (\gamma + \beta - \alpha) = 0$ has real roots, then a possible value of $y$ is: