External Cardiac Massage refers to the application of rhythmic chest compressions to help maintain blood circulation when the heart has stopped or is not pumping effectively. It is used in emergency care to support vital blood flow until advanced medical treatment or the return of normal heart function. The skill involves delivering compressions with appropriate depth and rate while coordinating with other resuscitation measures as needed. It is applied in clinical, prehospital, and other urgent response settings where immediate life support is required.

Holter Monitor is a portable device used for continuous monitoring of a patient's heart activity, typically over a period of 24 to 48 hours. It records electrical signals from the heart, including heart rate and rhythm, to detect abnormalities such as arrhythmias or irregular heartbeats. This skill is employed in cardiology clinics and hospitals to diagnose and evaluate various cardiac conditions, providing valuable data for medical professionals to make informed decisions regarding patient care and treatment plans.

Pharmacologic Stress Testing refers to the use of medications to increase the heart workload when exercise testing is not suitable or sufficient. The skill involves selecting appropriate agents, monitoring vital signs and symptoms, and observing the body's response during the test. In work settings, the skill is used to assess cardiovascular function and help identify blood flow or rhythm concerns when a patient cannot perform adequate physical exercise.

Pulmonary Function Testing (PFT) is a medical diagnostic test that measures the ability of the lungs to breathe in and out. It involves a series of tests that assess how well the patient's lungs are functioning and can help doctors diagnose respiratory problems like asthma, chronic obstructive pulmonary disease (COPD) and others. PFT requires specialized skills and training, including the use of specialized equipment and the interpretation of test results, to accurately diagnose and manage lung diseases.

Trachea is a medical term that refers to a specific skill or procedure that involves inserting a tube into a person's trachea to help them breathe. This skill is often used in emergency situations, such as when a person is experiencing respiratory distress or when they are undergoing surgery that requires general anesthesia. Tracheal intubation is a complex procedure that requires specialized training and experience to perform safely and effectively. It involves careful monitoring of the patient's vital signs, as well as constant assessment and adjustment of the airway to ensure proper ventilation and oxygenation. Tracheal intubation is a critical tool in modern medicine that can help save lives in high-stress situations.