16 Questions
What is the mechanism of action for local anesthetics in regional anesthesia?
Prevention of sodium influx across the nerve membrane, decreasing the rate and amplitude of depolarization
Which of the following is an absolute contraindication for regional anesthesia?
Patient refusal
Which of the following local anesthetics is known for its differential blockade and lower cardiotoxicity?
Ropivacaine (Naropin)
Which of the following conditions is considered a relative contraindication for regional anesthesia?
Sepsis
Which of the following pre-operative assessments is NOT specific to regional anesthesia?
Determination of the patient's blood type
Which of the following conditions is considered a potential difficulty for regional anesthesia?
All of the above
What is the endpoint for identifying the epidural space using the 'loss of resistance' technique?
Epidural space
Which of the following is a common advantage of performing a regional anesthesia technique using a plexus block?
Ability to provide a large area of anesthesia with a relatively large dose of local anesthetic
What is the recommended site for performing a spinal or epidural anesthetic block?
Below the L2/L3 intervertebral space
Which of the following is a potential complication associated with the administration of local anesthetics?
Local anesthetic toxicity
What is the primary purpose of using a continuous regional anesthesia technique, such as a continuous brachial plexus or femoral nerve block?
To provide prolonged anesthesia or analgesia
Which of the following is a potential complication associated with the use of peripheral nerve blocks?
Transient or chronic paresthesia
What is the primary advantage of using topical anesthesia, such as EMLA cream, for certain procedures?
Technically easy to administer with minimal equipment
What is the primary purpose of performing a sensory blockade assessment with ice or pin prick during a regional anesthesia procedure?
To determine the extent of sensory blockade
Which of the following is a recommended prevention strategy to minimize the risk of local anesthetic toxicity during a regional anesthesia procedure?
Perform frequent aspiration checks during the local anesthetic injection
What is the primary purpose of post-regional anesthesia management strategies, such as keeping the weak and insensate limb in a sling or padded?
To protect the limb from injury due to the loss of sensation and motor function
Test your knowledge on the principles of regional anaesthesia including mechanism of action, advantages, disadvantages, types of regional anaesthesia, potential complications, and post-RA care.
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