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|

Paucis Verbis: Assessing patients with suicidality in the ED

SuicidalTennisBallDr. Rob Orman emailed me last week about creating a pocket card on Suicide Risk Stratification. In many community ED’s, risk assessment is done by the emergency physician. I’m lucky where I work, because we have a 24/7 psychiatric ED, which consults on suicidal patients in the “medical ED”.

In the end, assessment is primarily based on physician judgment, because there’s no great clinical decision tool, rules, or scores to assess risk. Rob has created his own mnemonic to help you ask the right questions in assessing a suicidal patient. This is a sneak peek into a larger article that Rob is planning to unleash on the world on suicide assessment. Based on his review of the literature and own clinical experience, the mnemonic is: TRAAPPED SILO SAFE.

TRAAPPED SILO

  • “Risk factors” which increase a patient’s risk for committing suicide in the near future.

SAFE

  • “Protective factors”which decrease a patient’s risk for committing suicide in the near future.

PV Card: Risk Stratification of Suicide


Go to ALiEM (PV) Cards for more resources.

 

By |2021-10-16T19:32:00-07:00Feb 18, 2011|ALiEM Cards, Psychiatry|
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