I’ve written posts before about times that the cardiac monitor disagrees with the pulse oximeter as to how many times the heart is beating. In the prior post, it was due to PVC’s. This time it is something different…
Cardiac monitored fooled again…
ultrasound
The Color Doppler Box
While scanning a patient’s heart the other day, I noticed an artifact in the cine clips after adjusting the size of the color Doppler box. Let’s take a look.
Continue readingIs the probe backwards?
Learners get confused sometimes about which direction the probe is facing. Let’s look at how to know if you have it right or not.
Continue readingHow Gain Settings Affect Vitreous Imaging
Indulge me in a few more thoughts and images about posterior vitreous detachments.
Continue readingRetinal detachment; my white whale
After years of searching, I finally came across a few cases of retinal detachment. They are usually simple, but one similar diagnosis shows up when we learn about these things. There is an easy way to tell them apart, but you have to know what you are doing. Let’s have a look.
Continue readingE-waves? A-waves?
I saw a 51-year-old man recently with hypotension and tachycardia. It got interesting.
Continue readingUltrasound Image Depth
Learners often make the same same mistakes. One of the most common is not setting the depth properly. It’s not hard to fix, but it does need to pointed out. Let’s do that.
The Cylinder Tangent Effect
Sometimes we measure cylindrical(ish) structures on a bedside ultrasound. On some occasions, the patient later gets a radiology performed scan and our measurements don’t match. This could be why.
Continue readingX-rays or Ultrasounds for fractures?
Bones are very echogenic, which makes their ultrasound appearance a bright white line that is often easy to see – particularly in the case of superficial long bones. That’s what makes ultrasound a great way to find fractures. Let’s look at some examples.
Continue readingProbe Orientation in Cardiac Ultrasound
Learners often struggle with which direction to point the probe marker when scanning the heart. Hopefully this is a quick fix.
Continue reading
Searcy EM 