Final answer:
The Cascade, Huff, and Quad are different coughing techniques used for different purposes.
Step-by-step explanation:
The coughing technique that involves inhaling, holding the breath for 2 seconds, and then performing a series of coughs throughout exhalation is called the Cascade technique. This technique is used when the patient becomes stronger and has a greater cough effort, and it is effective for clearing central airways. It is often recommended for patients with large amounts of sputum.
The Huff technique is used when the patient exhales, and the abdominal muscles are pushed towards the diaphragm to stimulate a cough reflex. This technique is especially useful for patients with spinal cord injuries.
The Quad technique is a type of coughing technique that stimulates a natural cough reflex. It is effective for clearing central airways.