Anesthesia Theory: Hypoxia During Anesthesia

What is the difference between hypoxia and hypoxemia?

Hypoxia refers to inadequate oxygen supply in the tissues, while hypoxemia refers to an inadequate amount of oxygen in the blood

What is the primary cause of hypoxia in the tissues?

Deficient oxygen supply

What are the symptoms and signs of hypoxia?

Confusion, restlessness, shortness of breath, bluish discoloration, decreased level of consciousness, cough, difficulty breathing, decreased heart rate, palpitations, and sweating

Why is pulse oximetry essential in the operating room?

To detect and treat intraoperative hypoxemia Signup and view all the answers

What is the risk of hypoxemia during anesthesia and operation?

Irreversible damage to the heart and brain Signup and view all the answers

What is the primary goal of anesthesia staff during anesthesia and operation?

To avoid hypoxemia Signup and view all the answers

What are the three potential causes of an obstructed airway that may lead to hypoxia during anesthesia?

Misplacement of the tracheal tube in the esophagus, aspirated vomit blocking the airway, and inadequate breathing. Signup and view all the answers

What is the effect of severe bronchospasm on oxygen delivery to the lungs?

It prevents enough oxygen from reaching the lungs and also prevents carbon dioxide from being removed from the lungs. Signup and view all the answers

What are the potential consequences of a pneumothorax on oxygen delivery?

It can cause the affected lung to collapse, preventing oxygen from reaching the alveoli. Signup and view all the answers

How can anesthetic drugs contribute to hypoxia?

They can depress breathing and circulation, leading to inadequate oxygen delivery to the tissues. Signup and view all the answers

What are the potential equipment-related causes of hypoxia during anesthesia?

Problems with the anesthetic equipment, oxygen supply, and monitoring equipment can all contribute to hypoxia. Signup and view all the answers

What are the initial steps in managing hypoxia during anesthesia?

Checking if the airway is clear, looking for signs of laryngospasm, and ensuring the absence of vomit or blood in the airway. Signup and view all the answers

What is the most common cause of hypoxia in theatre?

Airway obstruction Signup and view all the answers

What can cause a previously well-saturated intubated patient to become hypoxic?

Displaced, kinked, or secretion-obstructed endotracheal tube Signup and view all the answers

What can prevent oxygen from getting into the alveoli to combine with hemoglobin in the blood?

Bronchospasm, lung collapse, pulmonary edema, or pneumothorax Signup and view all the answers

What can depress breathing in a patient?

Drugs such as opioids, poorly reversed neuromuscular blocking agents, or deep volatile anesthesia Signup and view all the answers

Why is it essential to check the patient's circulation during management of hypoxia?

To ensure normal circulation and detect any signs of inadequate circulation, such as excessive blood loss or cardiac shock Signup and view all the answers

How can inadequate circulation be revealed during management of hypoxia?

Through the pulse oximeter Signup and view all the answers

What is a potential consequence of excessive Halothane administration?

Cardiac depression Signup and view all the answers

What is the primary goal of managing hypoxia?

To restore oxygen in the blood to normal and keep the patient comfortable Signup and view all the answers

What should be checked first when investigating a problem with oxygen delivery?

Obstruction or disconnection of the breathing circuit or tracheal tube Signup and view all the answers

What should be done immediately when anaphylaxis occurs?

Stop giving the causative agent Signup and view all the answers

What medications are administered in anaphylaxis management?

Adrenaline, Steroids, Bronchodilators, and Antihistamine Signup and view all the answers

Why is it essential to check the anesthesia drugs before administration?

To ensure that all anesthesia drugs are given correctly Signup and view all the answers

What is the primary method of treating hypoxia?

Oxygen administration Signup and view all the answers

What is the purpose of mechanical ventilation in treating hypoxia?

Life support for patients who are very sick and cannot breathe Signup and view all the answers

Anesthesia Theory: Hypoxia During Anesthesia

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