Final answer:
Myocardial infarction (heart attack) would need immediate treatment as it is life-threatening.
Step-by-step explanation:
C: myocardial infarction would need immediate treatment as it is life-threatening. Myocardial infarction, also known as a heart attack, occurs when blood flow to the heart muscle is blocked, leading to damage or death of heart tissue. If not treated promptly, it can result in severe complications or even death.
It is important to recognize the symptoms of a heart attack, such as chest pain or discomfort, shortness of breath, and pain in the arm, jaw, or back, and seek immediate medical attention.