About Michelle Lin, MD

ALiEM Founder and CEO
Professor and Digital Innovation Lab Director
Department of Emergency Medicine
University of California, San Francisco

Paucis Verbis: Right and posterior ECG leads

ECG EKG machine

A standard 12-lead ECG can be very telling for patients with chest pain or shortness of breath. A right ventricular (RV) and posterior wall infarct, however, can present very subtly. You can obtain special right-sided (V1R-V6R) and posterior leads (V7-V9), if you are concerned. What are the indications for obtaining right-sided and posterior ECG leads?


Go to the ALiEM Cards for more resources.

Addendum 3/11/11:

Right sided ECG leads (V1R-V6R) are positioned in a mirror image fashion from the standard 12-lead precordial leads.
Right-Sided
Posterior ECG leads (V7-V9) are applied by moving V4-V6 in the posterior positions.
ecg08_f9c

By |2021-10-16T19:28:52-07:00Mar 11, 2011|ALiEM Cards, ECG|

Paucis Verbis: Pneumonia risk stratification tools

Pneumonia RUL CXR

Pneumonia is a common cause for ED visits. How do you decide on whether the patient can be managed as an outpatient or inpatient? To supplement your clinical judgment, many clinicians use the Pneumonia Severity Index (PSI) score.

Have you heard of CURB-65, supported by the British Thoracic Society? What about SMART-COP, which is meant to help you predict if your patient will need Intensive Respiratory or Vasopressor Support (IRVS)?

PV Card: Risk Stratification Scoring Tools in Pneumonia


Go to the ALiEM Cards for more resources.

By |2021-10-16T19:31:04-07:00Feb 25, 2011|ALiEM Cards, Pulmonary|

Article Review: Professionalism of physicians on Twitter

 

In a Research Letter in JAMA, Dr. Chretien et al describe the profile of physicians in the Twitter universe, specifically focusing on professionalism.

Inclusion criteria:

  • Self identified physician
  • At least 500 followers during May 1-31, 2010 (Whew, I only have 309 followers.)
  • English tweets
  • Posted a tweet within last 6 months
By |2016-11-11T18:59:20-08:00Feb 21, 2011|Education Articles, Social Media & Tech|
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