Continuing the theme of mandibular dislocation tricks (protecting your thumbs, post-reduction stabilization), Dr. Daniel Gromis from Advocate Christ Medical Center describes a novel reduction technique, based on the Cunningham shoulder reduction technique using muscle relaxation.
D-Dimer: To order or not to order?That’s the question when it comes to risk stratifying a patient for a pulmonary embolism with a low pretest probability. One should consider confounding conditions which may cause an elevated D-Dimer level. There’s always confusion about what may cause an elevated D-Dimer besides venous thromboemboli. So I thought I would make a pocket card as a reminder.
Adapted from [1]
Go to ALiEM (PV) Cards for more resources.
How do you capture the image of the eye on slit lamp exam either for the patient or your ophthalmology consult? It’s often easier to show someone a photo rather than trying to describe that atypical dendritic lesion, degree of corneal edema, or pattern of corneal abrasion.
You, however, don’t have the expensive camera attachment (nor a SLR camera for that matter).
Medication error is something that we all fear in Emergency Medicine and do our best to avoid. Here’s a scenario and simple approach for you, provided by Zlatan Coralic, PharmD (Assistant Clinical Professor in the UCSF School of Pharmacy).
You are an emergency physician working in an underserved country. You are presented with an asthmatic kid with severe retractions and tight wheezes. Multiple nebulizers and corticosteroids have failed. You want to try some magnesium sulfate before risking intubation in a place with no reliable access to ventilator equipment. You know the dose should be 1 gm IV over 20 minutes.
Do you always get a troponin for patients who sustain blunt chest trauma?
Hopefully your answer is no. Of note, it is also NOT indicated as a screening test for those in whom you suspect a blunt cardiac injury (BCI). It can be normal in the setting of arrhythmias and it can be falsely elevated in the setting of catecholamine release or reperfusion injury from hypovolemic shock.
The initial screening test should include an ECG and a FAST ultrasound exam. If you have abnormal ECG findings, then a troponin is warranted (in addition to hospital admission).
Below summarizes a suggested algorithm from the recent EM Clinics of North America publication series. Definitive statements are challenging because there is no gold standard to diagnose BCI.
Adapted from [1]
Go to the ALiEM (PV) Cards for more resources.
Continuing on the theme of Toxic Alcohols (osmolal gap, ethylene glycol, methanol), this Paucis Verbis card focuses on isopropyl alcohol toxicity, which is commonly found in rubbing alcohols. In this toxic alcohol, fomipezole is actually NOT indicated because you want to have alcohol dehydrogenase convert the toxic parent compound (isopropyl alcohol) into the nontoxic metabolite (acetone).
Note that these are merely guidelines and you should tailor management plans with your toxicologist and nephrologist.
Adapted from [1, 2]
Go to ALiEM (PV) Cards for more resources.
Continuing on the theme of Toxic Alcohols (osmolal gap, ethylene glycol), this Paucis Verbis card focuses on methanol toxicity. Useful are the American Academy of Clinical Toxicologists recommendations on when to administer an antidote (fomipezole) and when to perform hemodialysis. I redrew the flowchart based on what’s relevant to the ED in the initial stages.