WBR0348

Author	[[PageAuthor::Rim Halaby, M.D. [1]]]
Exam Type	ExamType::USMLE Step 1
Main Category	MainCategory::Pharmacology
Sub Category	SubCategory::Neurology
Prompt	[[Prompt::An anesthesiology resident is prepping a patient for open reduction and internal fixation of a radial fracture. He is attempting his first axillary brachial plexus block. He begins by carefully palpating the axillary artery, trying to keep it fixed between two fingers and then inserts a needle slightly above the artery. He then advances the needle and injects 250 mg of bupivacaine. While withdrawing the needle, the resident notices significant bright red blood pooring out of the needle tubing and realizes that he might have accidentally injected the anesthetic intravascularly. Which of the following signs should be expected to occur in this patient?]]
Answer A	AnswerA::Hypothermia
Answer A Explanation	AnswerAExp::
Answer B	AnswerB::Hyperthermia
Answer B Explanation	AnswerBExp::
Answer C	AnswerC::Hypertension and tachycardia
Answer C Explanation	AnswerCExp::
Answer D	AnswerD::Hypotension and bradycardia
Answer D Explanation	AnswerDExp::
Answer E	AnswerE::Respiratory arrest
Answer E Explanation	AnswerEExp::
Right Answer	RightAnswer::D
Explanation	[[Explanation:: Educational Objective: References: ]]
Approved	Approved::No
Keyword	WBRKeyword::Bupivacaine, WBRKeyword::cardiotoxicity
Linked Question	Linked::
Order in Linked Questions	LinkedOrder::