Forehead sparing, partial dual innervation, HSV, VZV, Ramsay Hunt, geniculate ganglion, zoster oticus, zoster opthalmicus, Hutchinson’s sign, nasociliary nerve, dendritic ulcers, topical steroids – it’s a lot of buzzwords. Let’s clarify. From the top…
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Paced EKGs
Not all “Paced” EKGs are the same. Let’s look at some of the differences among them.
Continue readingWhich length dialysis catheter should I use?
Your patient needs emergent dialysis. To expedite the proceedings, you agree place the dialysis catheter. You look on the shelf, but there is more than one length of catheter. Which one do you grab? Do you know?
Why do ‘bicarb amps’ come in such a weird concentration?
We have a handful of medicines that we administer by the “amp” (sodium bicarbonate, epinephrine, calcium chloride, and dextrose, for example). Clearly this is for simplicity as these are medications we use in emergent situations. That being the case, you may not spend much time thinking about the amount of medicine you are actually giving. Most have nice round numbers: D50 (50% dextrose), 10% calcium chloride, and although we don’t push this medicine by the “amp,” lidocaine comes in 1%, 2%, or 4%. But sodium bicarbonate comes as 8.4%. Weird. Why? Do you know?
What’s an odds ratio and when is it used?
Some research papers report their results as Risk Ratios. Others report Odds Ratios. What’s the difference and why would someone pick one or the other to report? Read on.
Continue readingECG brain buster
Here we see 5 electrocardiograms. All were done on the same person (a brilliant and handsome 41 year old EM physician) at the same time. There are clearly differences among them. One of them is ‘correct.’ To get you started, these are lead reversals.
- Which one is correct?
- Which of the others represents which lead reversals.
New member
Dr. Parsley, good to have you in the club.
Is this a STEMI? – answer
Is this a STEMI?
There is clearly ST elevation in leads V1-V3. Are we activating the cath lab based on this EKG?
Unity Reunion in Boston
Reunited and it feels so good. It’s great to see some of our graduates crossing paths at the ACEP Scientific Assembly. Don’t forget us little people as you move around the country doing bigger and better things. Keep in touch, guys!!
Searcy EM 