Question

Angina pectoris is a major symptom of
A) Myocardial infarction
B) Cyanosis
C) High blood pressure
D) Low blood pressure

Answer 1

Cyanosis is a clinical symptom. It is the bluing of the skin and the mucous membrane. Our body responds to a change in blood pressure. The regulatory system of our body’s blood pressure is maintained by various mechanisms. A small change in blood pressure is reversed through RAAS and ANP. The problem arises when the pressure fluctuates beyond 140mm Hg or goes below 65 mm Hg.

Complete answer:
Angina Pectoris is a term for heart attack. It is a symptom of myocardial infarction. Myocardial infarction refers to the failure of the heart due to a cut in its blood supply. The other symptoms of myocardial infarction include chest tightness, fatigue, anxiety. Out of the box, symptoms are more common in females.
An infarct is an area whose blood supply has been blocked due to any reason. Due to the lack of blood supply, the tissue undergoes necrosis. If this happens in the heart it leads to myocardial infarction. Myocardium defines the heart. So, in myocardial infarction, the heart suffers an infarct. This reduces the capacity of the heart to pump the blood through the blood. Slowly the heart goes into failure.
So, the correct answer is option A.

Note: When an infarct is present in the heart, initially the heart tries to compensate for the flow by increasing the heart rate. Later, when the heart is unable to keep up the beating at a higher rate and it cannot further bear the stress, it starts failing. In myocardial infarction, the referred pain is felt in the left shoulder. This is because the nerve supply of the two areas is the same.