Adenosine in reactive airway disease
A 44-year old woman presents via EMS with a chief complaint of a racing heartbeat. She is placed on a cardiac monitor, which displays a heart rate of 192, and a subsequent EKG reveals she is in SVT. She also complains of chest discomfort and shortness of breath. Her blood pressure is stable, and you decide to treat her with adenosine. As you take a more thorough past medical history, you learn your patient has a history of asthma. One of the EM residents mentions that he thought adenosine should not be given to patients with reactive airway disease. [+]
Diagnose on Sight: Swollen gums
Case: A 19 year old male with no past medical history presented with 4 days of painful oral lesions, swollen gums that bled easily, and fever. His temperature was 38.5C. Which of the following is true regarding this patient’s diagnosis? [+]
Author Insight: Ultrasonography versus CT for suspected nephrolithiasis | NEJM
Are you getting a CT or bedside ultrasound as your first-line diagnostic approach to patients with undifferentiated abdominal or flank pain in whom you suspect kidney stones? In a landmark 15-center, multidisciplinary study published in the New England Journal of Medicine in September 2014, Dr. Rebecca Smith-Bindman (UCSF Department of Radiology) and her research team looked at exactly this question for emergency department patients. In the paper, “Ultrasonography versus CT for suspected nephrolithiasis,” Dr. Smith-Bindman and Dr. Ralph Wang (UCSF Department of Emergency Medicine) kindly joined us on a quick discussion about her paper. [+]
AIR Series: Ob/Gyn Module 2015
Welcome to the seventh ALiEM Approved Instructional Resources (AIR) Module! In an effort to reward our residents for the reading and learning they are already doing online we have created an Individual Interactive Instruction (III) opportunity utilizing FOAM resources for U.S. Emergency Medicine residents. For each module, the AIR board curates and scores a list of blogs and podcasts. A quiz is available to complete after each module to obtain residency conference credit. Once completed, your name and institution will be logged into our private database, which participating residency program directors can access to provide proof of completion. [+]
The Art of Syringe Labeling in the ED
The ‘look-alike, sound-alike’ nature of many drug appearances and names is problematic. In high-stress environments such as the Emergency Department (ED), potential disasters can arise if “drug swap” or other medication errors occur. Drug swap is the accidental injection of the wrong drug.1 The anesthesiology literature contains several published reports presenting various ideas on how to properly label syringes used in the operating room to reduce medication errors. Techniques include color-coding the labels,2 labeling of the plunger,3 double-labeling,4,5 and specific placement of the labels on the syringe.6 [+]
PV Card: Focused Deep Vein Thrombosis (DVT) Ultrasound
Deep vein thrombosis (DVT) is always a consideration when patients with asymmetric lower extremity swelling. Why is one leg. Two-point focused DVT ultrasonography of the femoral and popliteal veins can be incredibly useful in the Emergency Department when trying to narrow the differential diagnosis. Drs. Margaret Greenwood-Ericksen, Joshua Rempell, and Mike Stone provide a clear, image-based clinical reference tool on this ultrasound technique. PV Card: Focused DVT Ultrasound Assessment Adapted from [1, 2] References Kline J, O’Malley P, Tayal V, Snead G, Mitchell A. Emergency clinician-performed compression ultrasonography for deep venous thrombosis of the lower extremity. Ann Emerg Med. 2008;52(4):437-445. [PubMed] Bernardi [+]
Diagnose on Sight: Lower extremity numbness and pain
Case: An 18 year old male presents after a single gunshot wound to his left calf. He complains of pressure-like pain near the wound and sensory numbness below his left knee. On examination, the left leg is tense. He has no dorsalis pedis pulse. Based on the history, exam, and findings in the image, which of the following is true regarding this diagnosis? [+]
Drug interactions with warfarin: Don’t bleed me out!
Warfarin is one of those drugs that always sends off little red warning lights when I see it on a patient’s medication list. Am I going to do something that will make this patient bleed out? Which drugs interact with warfarin? [+]
PV Card: Focused 1st Trimester Pregnancy Transvaginal Ultrasound
Early 1st trimester pregnancies can be challenging to risk stratify when patient present with bleeding or pain. The pregnancy may be still too early for transabdominal ultrasonography, which was covered in last week's PV card. The same authors, Drs. Matt Lipton, Mike Mallon, and Mike Stone provide a great bedside clinical reference tool on performing the focused transvaginal ultrasound in pregnancy. PV: Focused 1st Trimester Pregnancy Transvaginal Ultrasound Adapted from [1, 2] References Tayal V, Cohen H, Norton H. Outcome of patients with an indeterminate emergency department first-trimester pelvic ultrasound to rule out ectopic pregnancy. Acad Emerg Med. [+]
Ultrasound for Verification of Endotracheal Tube Location
In patients undergoing emergent tracheal intubation, there is currently no universally accepted gold-standard test to confirm the location of the endotracheal tube (ETT).1 End-tidal carbon dioxide (CO2) detection is the best of the tests that are routinely utilized to confirm ETT placement, however, it has been shown to have an error rate as high as 1/10 for proper determination of ETT location in emergency intubations.2 As a result, multiple modalities are necessary to confirm ETT location, which can delay mechanical ventilation and other treatments. The lack of a single, reliable test to confirm ETT placement can potentially lead to confusion regarding [+]
Director of Growth, Strategic Alliance Initiative, Center for Innovation and Digital Health
Massachusetts General Hospital;
Chief Scientific Officer, Conductscience.com
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