Critical care is provided for patients who are suffering from life-threatening conditions. The doctors who work with these people are often called intensivists. They focus on a range of different issues, so they can serve people who need immediate and life-saving care. Since people who need critical care are suffering from such a wide variety of issues, intensivists must have a thorough understanding of diverse types of medical issues and the devices and medications needed to treat them.

A general surgeon is a medical professional who performs surgery on patients. General surgeons typically perform common surgeries and have attended college and medical school to learn the skills needed to perform them successfully. They also care for their patients before and after operations and can give an accurate prognosis after the surgery is complete and the patient has had time to heal.

A Pulmonologist is a healthcare professional who specializes in pulmonary care or lung care. Pulmonologists diagnose, treat, and research pulmonary diseases and problems. They may have special knowledge of other types of internal medicine and specialties, as well, and they work closely with other doctors to help make patients comfortable and improve their health.

A vascular surgeon is a medical professional who has been trained to diagnose and treat diseases of the vascular system. The vascular system is made up of blood vessels and veins. It helps blood get to the organs, and if something stops the blood from flowing properly, organs can suffer and patients can become extremely sick. Vascular surgeons can help fix any vascular problems that may occur including blockage of Carotids, blockage of leg arteries,aortic aneurysms and varicose veins.