May 16, 2012

Ottawa ankle rule: X-rays are only required if there is bony pain in the malleolar zone and any one of the following:

Bone tenderness along the distal 6 cm of the posterior edge of the tibia or tip of the medial malleolus;

Bone tenderness along the distal 6 cm of the posterior edge of the fibula or tip of the lateral malleolus;

An inability to bear weight both immediately and in the emergency department for four steps.

JAMA;269:1127-1132

May 15, 2012

According to the ACC/AHA guidelines, transient ST-segment changes (= 0.05 mV) that occur with chest pain and resolve when pain resolves are the ECG finding most predictive of ACS.

EBMedicine.net. January 2010.

May 14, 2012

Patients with prolonged QT intervals, polymorphic VPCs, or ventricular bigeminy on their ECG may develop longer runs and degenerate to VF and these patients should always be carefully monitored in telemetry units.

Journal of Emerg Med ;33(1):53-60.

May 13, 2012

Mobitz type I 2nd-degree AV block is often associated with inferior MI, sclerodegenerative disease, myocarditis, and heightened venous tone (e.g., trained athletes, vomiting patients), and may be reversible. Mobitz type II AV block typically indicates some structural damage to the conduction system.

Journal of Emerg Med ;33(1):53-60.

May 12, 2012

Common factors associated with a delayed diagnosis of posterior shoulder dislocation include a late presentation by the patient, inadequate radiologic investigation, elderly patients, and those presenting with multiple injuries.

Emerg Med Clin N Am 28 (2010) 969-996

May 11, 2012

Early ICD complications are typically procedure related, whereas generator (6%) or lead (12%) complications and inappropriate shocks (12-16%) may develop at any time.

Journal of Emerg Med;33(1):53-60.

May 10, 2012

Two decision rules guide the use of cervical spine radiography in patients with trauma: the NEXUS Low Risk Criteria (NLC) and the Canadian C-Spine Rule (CCR).

Emerg Med Clin N Am 28 (2010) 719-738

May 09, 2012

High-dose insulin euglycemic therapy (HIET) in acute Calcium Channel Blockers Overdose consists of the infusion of high-dose regular insulin as a bolus of 1 IU/kg followed by an infusion of 0.5 IU/kg per hour, along with the administration of supplemental glucose to maintain euglycemia.

Emerg Med Clin N Am 28 (2010) 149-161.

May 08, 2012

The RUSH (Rapid Ultrasound in Shock) shock ultrasound protocol focuses on 3 step approach: The pump, The tank, The Pipes.

Emerg Med Clin N Am 28 (2010) 29-56

May 07, 2012

Central cord syndrome, induced by damage to the corticospinal tract, is characterizedby weakness in the upper extremities, more so than in the lower extremities.

Emerg Med Clin N Am 28 (2010) 719-738

May 06, 2012

About half of the cases of postpartum eclampsia occur within 48 hours after delivery, and the remainder occur between 2 days and 4 weeks after delivery.

NEJM, March 12, 2009.Volume 360:1126-1137

May 05, 2012

Occult UTIs occur in 10% of febrile girls and uncircumcised boys younger than 1 year and in 5% of girls between 1 and 2 years.

Emerg Med Clin N Am 28 (2010) 67-84

May 04, 2012

Findings suggestive of lower airway aspirated foreign bodies in children include air trapping leading to asymmetric hyperinflation (38%-63%), pulmonary consolidation (8%-25%), or barotrauma (7%).

Advanced pediatric life support. 4th edition. Blackwell Publishing.

May 03, 2012

Brown-Sequard syndrome is characterized by paralysis, loss of vibration sensation,and proprioception ipsilaterally, with contralateral loss of pain and temperature sensation.

Emerg Med Clin N Am 28 (2010) 719-738

May 02, 2012

Approximately 50% of hemodialysis catheters fail within 1 year; up to two thirds of these failures are due to thrombosis.

N Engl J Med 2011; 364:303-312

May 01, 2012

Approximately 80% of femur fractures in children younger than 2 years are associated with abuse and a humeral diaphysis fracture before 3 years of age represents non-accidental trauma until proven otherwise.

Emerg Med Clin N Am 28 (2010) 85-102.