Medicine
Fransis Harvardy
Abstract
Indication when upper airway obstruction due to soft tissue or tongue (excluding epiglottis) in a conscious or unconscious patient with a healthy gag reflex and when extensive tissue damage around the mouth and jaw and chin wiring is not possible. It is used in the case of pharyngeal edema or excessive ...
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Indication when upper airway obstruction due to soft tissue or tongue (excluding epiglottis) in a conscious or unconscious patient with a healthy gag reflex and when extensive tissue damage around the mouth and jaw and chin wiring is not possible. It is used in the case of pharyngeal edema or excessive nasal discharge in children to reduce soft tissue damage when nasal tracheal suctioning is frequently required. Nasal airway placement stimulates the patient's nausea reflex. If the tube is too long, it may enter the esophagus and cause the stomach to dilate. Epistaxis may occur and cause blood to be aspirated. The nasal airway should not be used for patients with extensive facial trauma or a fracture of the basilar portion of the cranial base. Choose the nostril that is larger and more open. Examine the passageway for trauma and foreign body wall deviation or polyps. Prepare suction devices for use if necessary. Measure the length of the nasopharyngeal airway from the tip of the nose to the edge of the ear. Nasal bleeding, aspiration, secondary hypoxia with incorrect placement. The endotracheal tube may be inserted through the nose or mouth. The placement method is visible using a laryngoscope and blindly through the nose. The goal is to establish a safe and efficient air route. Protection of trachea and lungs from aspiration of gastric, blood, and fluid contents from airway compartments, airway for mechanical ventilation, direct access to lungs for excretion or suction, discharge of emergency drugs for rapid absorption through bronchial tree.
Medicine
Alfred Atlinkson
Abstract
When a coronary artery narrows or closes, the area of the heart through which the artery is lubricated becomes ischemic and damaged, and a heart attack may occur. Oxygen is directly related to heart activity. The more active the heart, the greater the need for oxygen, and the coronary artery blood flow ...
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When a coronary artery narrows or closes, the area of the heart through which the artery is lubricated becomes ischemic and damaged, and a heart attack may occur. Oxygen is directly related to heart activity. The more active the heart, the greater the need for oxygen, and the coronary artery blood flow is adjusted according to the heart muscle's need for oxygen. The heart muscle consumes about 65% of the oxygen in the coronary artery, while other tissues in the body consume a maximum of 25% of the oxygen in the blood of the coronary artery. Also, unlike other tissues in the body, 75% of the heart muscle blood is supplied at rest by diastole of the heart. The coronary arteries are responsible for supplying blood to the heart muscle. The right and left coronary arteries branch from the aorta just above the aortic valve, then enter the heart and supply blood to the capillaries of the heart muscle. The two grooves meet at the posterior region of the heart in a place called the CRUX, where the AV group is located. If the RCA supplies blood to the cortex, these people are called the dominant right. The descending RCA branch intoxicates the left posterior muscle. Approximately 18% of people with CCA and RCA donate blood to the heart crocus, in which case it is called a balanced arterial pattern.
