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A tracheal tube is a catheter that is inserted into the trachea for the primary purpose of establishing and maintaining a patent (open and unobstructed) airway. Tracheal tubes are frequently used for airway management in the settings of general anesthesia, critical care, mechanical ventilation, and emergency medicine. Many different types of ...
A separate complication that may occur includes a misplaced intubation. Specifically, if the measured length of the NG tube is too long, the tube may coil in the stomach, causing the tip of the tube to be in the esophagus or the duodenum. On the other hand, if the tube is measured too short, the tip of the NG tube may only reach the esophagus.
A tracheostomy tube may be single or dual lumen, and also cuffed or uncuffed. A dual lumen tracheostomy tube consists of an outer cannula or main shaft, an inner cannula, and an obturator. The obturator is used when inserting the tracheostomy tube to guide the placement of the outer cannula and is removed once the outer cannula is in place.
Mechanical dead space is another important parameter in ventilator design and function, and is defined as the volume of gas breathed again as the result of use in a mechanical device. Image of endotracheal tube placement required to connect a patient's physiologic airway to the ventilator.
Nasogastric intubation is a medical process involving the insertion of a plastic tube (nasogastric tube or NG tube) through the nose, down the esophagus, and down into the stomach. Orogastric intubation is a similar process involving the insertion of a plastic tube (orogastric tube) through the mouth. [1] Abraham Louis Levin invented the NG tube.
Most tubes have an inflatable cuff to seal the trachea and bronchial tree against air leakage and aspiration of gastric contents, blood, secretions, and other fluids. Uncuffed tubes are also available, though their use is limited mostly to pediatric patients (in small children, the cricoid cartilage , the narrowest portion of the pediatric ...
Uncomplicated aspiration events commonly present with symptoms including wheezing and coughing. Signs and symptoms that aspiration is complicated can include dyspnea (shortness of breath), hypoxemia (low oxygen in the blood), tachycardia (high heart rate), fever, and crackles or wheezes on lung exam.
Artificial ventilation or respiration is when a machine assists in a metabolic process to exchange gases in the body by pulmonary ventilation, external respiration, and internal respiration. [1] A machine called a ventilator provides the person air manually by moving air in and out of the lungs when an individual is unable to breathe on their own.