can anyone tell me why there is depression in lead I and aVL | Figure 1

mfd229

Paramedic

can anyone tell me why there is depression in lead I and aVL, but elevation in V5 and V6? It was my understanding that these 4 leads all look at the same part of the heart.


Similar cases



FU for 43 yo male with AMI/STEMI. The first 12-lead shows ST-elevations septal, anterior & lateral leads. The 2nd 12-lead was taken after Stent placements in LAD & LCx and confirms Anteroseptal Infarct. The last 12-lead was taken the day after reperfusion. Apologies for the poor Dx quality of the last EKG.](https://app.figure1.com/case-detail/23eb054f-cada-46c0-8e75-03f8def35a1a)



12 lead from earlier patient](https://app.figure1.com/case-detail/40ce1721-a1d0-418f-8611-93b276a05509)



STEMI in evolution (Precordial leads). Each ECG done 1 hour apart. #4 was post cardioversion at 200J.](https://app.figure1.com/case-detail/531396ec-01a2-463c-a2f9-d68141793a2b)



anyone tell me what is special about this 12 lead? Hint lead I and AVL](https://app.figure1.com/case-detail/5830c9bc-982d-46aa-8915-876b128ce3ce)

A 52-year-old man presented with a 20-minute history of chest pain radiating to the left shoulder and neck, associated with dyspnea and diaphoresis. He had a history of hypertension, long-term smoking, and a sedentary lifestyle. On physical examination, bibasilar crackles were noted on lung auscultation. An electrocardiogram (ECG) was performed in the primary care setting, and the patient was promptly referred to the emergency department.



A 52-year-old man presented with a 20-minute history of chest pain radiating to the left shoulder and neck, associated with dyspnea and diaphoresis.](https://app.figure1.com/case-detail/ae0fe999-6875-4474-94f0-ad823dbb9b3a)

A 28-year-old woman presented with a 3-day history of intense pruritus over the lower back. She reported no recent travel or exposure to new environments. She cares for a small kennel with approximately eight dogs rescued from the streets. Physical examination revealed multiple small vesicles, some clustered and others scattered, predominantly involving the lumbar region and the left gluteal area.



A 28-year-old woman presented with a 3-day history of intense pruritus over the lower back.](https://app.figure1.com/case-detail/c271070f-2bc7-4052-9895-635277e1a7d5)

A 4-month-old male infant presented with skin lesions localized to the chin for the past 3 days. Physical examination revealed multiple small pustules with surrounding inflammatory signs on the chin, along with a few scattered papules on the chest.



A 4-month-old male infant presented with skin lesions localized to the chin for the past 3 days.](https://app.figure1.com/case-detail/48f41642-b9db-4089-b120-a94ee52328de)

patient in late teens presenting after a collapse, no chest pain, no previous cardiac history, no history of sudden death in family, are there any features in this ekg that would warrant further work-up or is this just a pediatric ekg?



patient in late teens presenting after a collapse, no chest pain, no previous cardiac history, no history of sudden death in family, are there any features in this ekg that would warrant further work-up or is this just a pediatric ekg?](https://app.figure1.com/case-detail/2af390e1-ace8-40ed-ba1c-98fb2d72f4c5)