Myocardial Infarction Pain Essay

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Question: Willa is taken to the Emergency Room after being found slumped over with no pulse or respiration at her home office. On arrival, Willa develops respiration and is conscious. She is found to have an acute myocardial infarction. She feels nauseated and anginal pain that starts in her left shoulder that radiates down her arm from T1-T4. What nerves are responsible for sensation in this path?

Answers: A. Medial Brachial Cutaneous and Lateral Antebrachial Cutaneous
B. Intercostalbrachial and Axillary
C. Medial Brachial Cutaneous and Intercostalbrachial
D. Supraclavicular and Axillary
E. Lateral antebrachial cutaneous and Radial

Rationale for each answer:

Answer: C. Medial Brachial Cutaneous and Intercostalbrachial

Myocardial Infarction pain is thought to originate when visceral sensory nerve endings in the myocardium are irritated and then ascends up the sympathetic trunk and enter the spinal cord through the posterior roots of the upper Thoracic nerves (T1-T3). …show more content…
Anginal pain radiates from the substernal and left pectoral regions to the left shoulder and the medial aspect of the left upper limb. This part of the limb is supplied by the medial cutaneous nerve of the arm. The lateral cutaneous branches of the intercostobrachial nerves (2nd and 3rd intercostal nerves) join with the medial cutaneous nerve of the arm.
a. The Lateral Antebrachial Cutaneous nerve provides cutaneous innervation to the lateral portion of the forearm C5, C6, C7 and is the terminal part of the musculocutaneous nerve. The pain of the patient radiates

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