#1
What is the primary goal of regional anesthesia?
To block pain sensation in a specific part of the body
ExplanationRegional anesthesia aims to block pain in a localized area by inhibiting nerve signals.
#2
Which nerve is commonly blocked in a popliteal sciatic nerve block?
Tibial nerve
ExplanationThe tibial nerve is commonly blocked in a popliteal sciatic nerve block.
#3
Which landmark is commonly used for identifying the injection site in a subclavian brachial plexus block?
Coracoid process
ExplanationThe coracoid process is commonly used to identify the injection site in a subclavian brachial plexus block.
#4
In which decade did the use of ultrasound in regional anesthesia become more widespread?
1990s
ExplanationThe use of ultrasound in regional anesthesia became more widespread in the 1990s.
#5
Who is often referred to as the 'Father of Anesthesiology' and made significant contributions to regional anesthesia?
Harold Griffith
ExplanationHarold Griffith is often referred to as the 'Father of Anesthesiology' and made significant contributions to regional anesthesia.
#6
Which type of nerve fibers are responsible for transmitting pain signals?
C fibers
ExplanationC fibers are responsible for transmitting pain signals.
#7
In a retrobulbar block, where is the local anesthetic injected to block the ophthalmic nerve?
Behind the eyeball
ExplanationIn a retrobulbar block, the local anesthetic is injected behind the eyeball.
#8
Which of the following is a common site for performing a spinal anesthesia?
Subarachnoid space
ExplanationSpinal anesthesia is commonly performed in the subarachnoid space for targeted pain relief.
#9
Who is credited with the first successful demonstration of regional anesthesia?
August Bier
ExplanationAugust Bier is credited with the first successful demonstration of regional anesthesia.
#10
Which local anesthetic is commonly used in epidural anesthesia?
Bupivacaine
ExplanationBupivacaine is a common local anesthetic used in epidural anesthesia.
#11
In a lumbar plexus block, which nerve roots are typically targeted?
L2-L4
ExplanationLumbar plexus blocks typically target nerve roots L2-L4.
#12
Which type of nerve fibers are typically blocked first by local anesthetics?
C fibers
ExplanationLocal anesthetics typically block C fibers first.
#13
What is the primary advantage of a nerve stimulator in performing a nerve block?
Identification of the motor response
ExplanationA nerve stimulator aids in identifying the motor response during a nerve block.
#14
Which pharmacological agent is commonly added to local anesthetics in epidural anesthesia to prolong their duration of action?
Clonidine
ExplanationClonidine is commonly added to local anesthetics in epidural anesthesia to prolong their duration of action.
#15
Which of the following nerves is commonly targeted in an axillary nerve block?
Radial nerve
ExplanationThe radial nerve is commonly targeted in an axillary nerve block.
#16
What is the purpose of a test dose in regional anesthesia?
To confirm correct needle placement and avoid intravascular injection
ExplanationA test dose in regional anesthesia ensures proper needle placement and helps avoid intravascular injection.
#17
What is the primary advantage of a continuous peripheral nerve block over a single-injection block?
Extended duration of analgesia
ExplanationContinuous peripheral nerve blocks provide extended analgesia compared to single-injection blocks.
#18
Who introduced the concept of the epidural anesthesia technique?
John Bonica
ExplanationJohn Bonica introduced the concept of the epidural anesthesia technique.
#19
What is the term for the phenomenon where a nerve becomes more sensitive to stimulation after initial exposure to a local anesthetic?
Tachyphylaxis
ExplanationTachyphylaxis refers to increased nerve sensitivity after initial exposure to a local anesthetic.
#20
What is the primary advantage of a subarachnoid block over an epidural block?
Greater control over the level of anesthesia
ExplanationSubarachnoid blocks offer greater control over the level of anesthesia compared to epidural blocks.
#21
What is the primary advantage of a neurostimulator-guided nerve block over a landmark-based approach?
Increased precision in needle placement
ExplanationA neurostimulator-guided nerve block offers increased precision in needle placement over a landmark-based approach.