WBR0015
| Author | PageAuthor::Raviteja Reddy Guddeti, Aarti Narayan |
|---|---|
| Exam Type | ExamType::USMLE Step 2 CK |
| Main Category | |
| Sub Category | |
| Prompt | [[Prompt::A 30 yr old male presents to the ER with complaints of moderate grade fever associated with severe retrosternal chest pain that is referred to the back and the left trapezius ridge. Upon further enquiry the patient states that the pain is aggravated by lying supine and relieved by sitting and leaning forward. What are the expected EKG findings in this patient?]] |
| Answer A | AnswerA::ST elevation in leads V4-V6 |
| Answer A Explanation | AnswerAExp:: |
| Answer B | AnswerB::Tall, peaked T waves |
| Answer B Explanation | AnswerBExp:: |
| Answer C | AnswerC::Inverted T waves |
| Answer C Explanation | AnswerCExp:: |
| Answer D | AnswerD::ST elevations in all EKG leads and PR depression |
| Answer D Explanation | AnswerDExp:: |
| Answer E | AnswerE::Q waves in lead aVF |
| Answer E Explanation | AnswerEExp:: |
| Right Answer | RightAnswer:: |
| Explanation | [[Explanation::The correct answer is ST elevation seen in all leads, as well as PR depression. Diffuse ST elevation is due to ventricular current of injury and PR depression is due to concomitant atrial current of injury. These findings are typically seen in stage 1 (initial days) of the disease. After several days the ST elevations return to baseline (stage 2) and T wave inversions begin to appear (stage 3). Eventually in weeks to months the EKG findings will be normal (stage 4). Educational Objective: |
| Approved | Approved::No |
| Keyword | |
| Linked Question | Linked:: |
| Order in Linked Questions | LinkedOrder:: |