Anesthesia Theory - Lecture 1

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Questions and Answers

What can reduce blood flow?

Subcutaneous medications

Intramuscular medications

The absorption of subcutaneous or intramuscular medications (correct)

Decreased absorption of medications

What is the result of reduced blood flow on medication absorption?

Faster absorption of subcutaneous medications

Slower absorption of intramuscular medications

Increased absorption of oral medications

Delayed absorption of subcutaneous or intramuscular medications (correct)

What type of medications are affected by reduced blood flow?

Oral medications

Topical medications

Subcutaneous or intramuscular medications (correct)

Inhaled medications

What is the date of the lecture on anesthesia theory?

Friday 6th October 2023 Signup and view all the answers

What is the number of the lecture on anesthesia theory?

Lecture 1 Signup and view all the answers

Why is intubation more difficult in the obstetric population?

Due to the presence of a smaller glottic opening Signup and view all the answers

What may be required for intubation in the obstetric population?

A smaller-than-usual endotracheal tube Signup and view all the answers

What is a characteristic of the obstetric population in terms of intubation?

Difficult to intubate Signup and view all the answers

What is a consideration for endotracheal tube size in the obstetric population?

The tube size should be adjusted based on the patient's needs Signup and view all the answers

How does the obstetric population compare to the non-pregnant population in terms of intubation?

The obstetric population is more difficult to intubate Signup and view all the answers

Why may a smaller endotracheal tube be required for intubation?

Due to swollen tissue Signup and view all the answers

What is important to do during laryngoscopy?

Be very gentle Signup and view all the answers

Why is it important to be gentle during laryngoscopy?

To avoid bleeding Signup and view all the answers

What may happen if you are not gentle during laryngoscopy?

Bleeding may obstruct the view Signup and view all the answers

What is the purpose of using a smaller endotracheal tube?

To accommodate swollen tissue Signup and view all the answers

What is the benefit of cricoid pressure in anesthesia?

Reduces the dose of inhaled anesthetics by up to 40% Signup and view all the answers

When should cricoid pressure be released during intubation?

When it is confirmed that the endotracheal tube has been placed in the trachea Signup and view all the answers

What is the primary goal of maintaining cricoid pressure during intubation?

To reduce the risk of aspiration Signup and view all the answers

What is the consequence of releasing cricoid pressure too early during intubation?

Aspiration of stomach contents Signup and view all the answers

What is the relationship between cricoid pressure and endotracheal tube placement?

Cricoid pressure is maintained until the endotracheal tube is placed in the trachea Signup and view all the answers

What is the effect of anatomical changes on the epidural space?

It creates a space with positive pressure Signup and view all the answers

What is the approximate percentage of reduction in the dose of local anesthetics for spinal and epidural anesthesia due to central nervous system changes in pregnancy?

30% Signup and view all the answers

What is the effect of positive pressure in the epidural space on identifying the space?

It makes it slightly more difficult to identify the space Signup and view all the answers

What is the effect of central nervous system changes in pregnancy on the dose of inhaled anesthetics?

It reduces the dose of inhaled anesthetics by up to 40% Signup and view all the answers

What is the average blood loss associated with vaginal delivery?

200-250ml Signup and view all the answers

What is the effect of hormonal changes on the dose of local anesthetics for spinal and epidural anesthesia?

It reduces the dose of local anesthetics Signup and view all the answers

What is the effect of venous dilatation on the dose of local anesthetics for spinal and epidural anesthesia?

It reduces the dose of local anesthetics Signup and view all the answers

What is the main reason for reducing the dose of anesthetics in pregnancy?

To reduce the risk of anesthesia-related complications Signup and view all the answers

Study Notes

Anesthesia in Obstetrics

The obstetric population is more difficult to intubate compared to the non-pregnant population, and a smaller-than-usual endotracheal tube may be required due to swollen tissue.
Cricoid pressure should not be released until it is confirmed that the endotracheal tube has been placed in the trachea.

Anesthetic Considerations

Reduces the dose of inhaled anesthetics by up to 40%.
Reduces the dose of local anesthetics for spinal and epidural anesthesia by up to 30%.

Epidural Space Changes

Anatomical changes may create an epidural space that has positive pressure instead of negative pressure, making it slightly more difficult to identify the epidural space.
Hormonal changes and venous expansion contribute to reducing the requirements of local anesthesia for spinal and epidural anesthesia by 30%.

Laryngoscopy and Intubation

Be very gentle during laryngoscopy as bleeding may obstruct the view.
A smaller endotracheal tube may be required for intubation due to swollen tissue.

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Description

This quiz covers the basics of anesthesia theory, including its effects on blood flow and absorption. It's based on a lecture by Dr. [Name].