Trick of the Trade: Crossed straight leg raise test

A 35 year old man presents with low back pain which radiates down his right leg to the level of the knee. Is this sciatica?

Low back pain is one of the most common chief complaints that we see in the Emergency Department. In addition to the examination of the back and distal neurovascular function, we also need to test for evidence of a radiculopathy (compression or inflammation of a nerve root typically from a herniated disk). Because most disk herniations occur at the L4-L5 and L5-S1 level, you should test for irritation of the L4-S1 nerve roots. This is the sciatic nerve.

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By Michelle Lin, MD|2016-11-11T18:52:17-08:00Aug 23, 2011|Orthopedic, Tricks of the Trade|

Paucis Verbis: An approach to persistent tachycardia

Tachycardia is a common clinical occurrence in the ED. Most of the time the etiology can be discerned through the history and physical exam, but sometimes it cannot. This is problematic especially when we are about to discharge a patient home but his/her heart rate is still 115 beat/min. We can’t send this patient home yet. Do we then have to admit them for work-up of persistent tachycardia?

Attached is a list of common causes of tachycardia in the ED, as well as potential diagnostic and therapeutic considerations. Rather than a shot-gun approach, a limited and thoughtful method works best.

Can you think of other potential causes?

PV Card: Approach to Persistent Tachycardia

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Go to ALiEM (PV) Cards for more resources.

This useful PV card was made by one of our new star faculty members at San Francisco General Hospital, Dr. David Thompson. Thanks, David!

By Michelle Lin, MD|2021-10-12T16:15:00-07:00Aug 19, 2011|ALiEM Cards, Cardiovascular|

Trick of the Trade: Using a funnel for NG tubes

One of the indications for nasogastric (NG) tube placement is to instill fluids or medications. This may be saline or water for NG lavages or charcoal. You can manually push fluids into the NG tube via a 60 cc syringe, but this may take a long time for large volumes.

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By Michelle Lin, MD|2016-11-11T18:52:19-08:00Aug 16, 2011|Tricks of the Trade|

The future of the ALiEM blog

It has been over 2 years now that my guest bloggers and I write blog posts 5 days a week. The process of writing, maintaining, and collaborating on ideas for the blog has completely changed my career. It has opened new doors, introduced me to new colleagues and friends worldwide, and clarified the direction of my career.

Now as I find myself involved with more projects, I need to re-structure my time (unless someone can find me an extra hour a day to work). It was a good run though. Honestly, I’m surprised that I maintained this pace for so long. The blog was meant to be my little experiment and foray into the Web 2.0 world to catalog my personal thoughts and learning.

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By Michelle Lin, MD|2019-01-28T22:37:08-08:00Aug 15, 2011|Social Media & Tech|

TED Video: A lesson from spaghetti sauce on appreciating diversity

One size does not fit all.

This is the crux of Malcolm Gladwell’s 18-minute talk. He gave this talk just before his book “Blink” went huge. He makes an eloquent argument for the nature of choice and happiness. There is no one perfect spaghetti sauce that fits everyone. There is no one perfect Pepsi which everyone likes.

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By Michelle Lin, MD|2019-09-10T14:04:15-07:00Aug 11, 2011|Life|

Trick of the Trade: Splinting the ear

One of the hardest bandages to apply well is one for auricular hematomas. After drainage, how would you apply a bandage to prevent the re-accumulation of blood in the perichondrial space?

Traditionally, one can wedge xeroform gauze or a moistened ribbon (used for I&D’s) in the antihelical fold. Behind the ear, insert several layers of gauze, which have been slit half way to allow for easier molding around the ear. Anterior to the ear, apply several layers of gauze to complete the “ear sandwich”. Finally, secure the sandwich in place with an ACE wrap, which ends up being quite challenging because of the shape of the head.

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By Michelle Lin, MD|2016-11-11T19:59:20-08:00Aug 10, 2011|ENT, Trauma, Tricks of the Trade|

EM-RAP Educator’s Podcast: How to get promoted in academic EM

Dr. Amal Mattu gives a great 47-minute lecture on “How to Get Promoted in Academic Emergency Medicine”. Catch the podcast from the talk in July’s EM-RAP Educator’s Edition. He pulls many of the lessons from his son’s kindergarten teacher.

Getting promoted in academic EM can often be a challenge and a mysterious process. Why is it some are getting promoted faster than others? What can I do to make sure I’m on track for promotion?

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By Michelle Lin, MD|2016-12-20T10:02:54-08:00Aug 9, 2011|Medical Education|

About Michelle Lin, MD

PV Card: Approach to Persistent Tachycardia