<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:Please refer to the summary above to answer this questionAn ECG is most likely to show which of the following findings in this patient?Patient InformationAge: 64 yearsGender: F, self-identifiedEthnicity: unspecifiedSite of Care: emergency departmentHistoryReason for VisitChief Concern: My chest hurts, especially when I take a deep breath.History of Present Illness:2-hour history of chest painpain described as sharppain rated 610 at rest and 1010 when taking a deep breathPast Medical History:rheumatoid arthritismajor depressive disorderMedications:methotrexate, folic acid, fluoxetineAllergies:penicillinPsychosocial History:does not smokedrinks one glass of bourbon every nightPhysical ExaminationTemp Pulse Resp BP O2 Sat Ht Wt BMI36.7C98F75min 17min 12475 mm Hg 163 cm5 ft 4 in54 kg120 lb20 kgm2Appearance: sitting forward at the edge of a hospital bed, uncomfortableNeck: no jugular venous distensionPulmonary: clear to auscultationCardiac: regular rate and rhythm; normal S1 and S2; no murmurs; a scratching sound is best heard over the left sternal border; pain is not reproducible on palpation; pain is worse when the patient is lying back and improved by leaning forwardAbdominal: no tenderness, guarding, masses, bruits, or hepatosplenomegalyExtremities: tenderness to palpation, stiffness, and swelling of the metacarpophalangeal and proximal interphalangeal joints of the fingers; swan neck deformities and ulnar deviation of several fingers; firm, nontender nodules on the extensor aspects of the left forearm; no edemaNeurologic: alert and oriented; cranial nerves grossly intact; no focal neurologic deficits? A: S waves in lead I, Q waves in lead III, and inverted T waves in lead III, B: Diffuse, concave ST-segment elevations, C: Sawtooth-appearance of P waves, D: Peaked T waves and ST-segment elevations in leads V1-V6, E: Alternating high and low amplitude QRS complexes,  <response>: This is a multiple choice question asking about ECG findings in a patient with chest pain. Based on the patient information provided, this is likely a patient with acute pericarditis given the sharp chest pain worsened by lying back and improved by leaning forward. The choices describe various ECG abnormalities. Choice A describes ECG findings of inferior MI. Choice B describes diffuse ST elevations seen in pericarditis. Choice C describes P mitrale seen in mitral stenosis. Choice D describes ECG findings of anterior STEMI. Choice E describes electrical alternans which can be seen with pericardial effusion or cardiac tamponade.Based on the clinical presentation, the ECG finding most likely to be seen is diffuse concave ST elevations, which is choice B. This is a classic ECG finding in acute pericarditis.B: Diffuse, concave ST-segment elevations 