1/ Good morning, #medtwitter, and happy Thursday! We’re excited to bring you our latest edition of #ReadingRoom. Dim the lights, and get ready to clinically correlate!
You’ve got two abdominal plain films below. Which one is from a patient with a SBO?
2/ Let’s take a closer look, starting with the image on the right: here, there’s no abnormal dilation and the distribution of gas is normal. This is a normal abdominal film.
3/ On the other hand, here we see an abnormally dilated small bowel with predominant small bowel gas while there is no rectal gas and scant colonic gas. This is concerning for a SBO.
4/ Let’s take a look at one more abnormal abdominal film. First, we apply the 3-6-9 rule and see the colon is dilated & likely the small bowel is, too. Then we look at the distribution of gas: absent in the rectum, evenly distributed across large & small bowel. This is an ileus.
5/ Finally, a little cheat sheet, courtesy of yours truly, to help guide you in interpretation of abdominal x-rays!
6/ Big thanks as always to the folks who put this series together:
💡Content: @TomMulveyMD
💡Graphics: @SalimNNajjar
7/ To recap:
By using the 3-6-9 rule and approaching the distribution of bowel gas systematically, you, too can read an abdominal film to evaluate for ileus or SBO.
/fin
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1/ Good morning, #MedTwitter, and happy Tuesday! We’re excited to bring you our latest installment of #ReadingRoom today. Dim the lights; it’s time to clinically correlate!
What object is labeled in the CXR below? What is it used for?
2/ That, friends, is our dear friend: the NG tube. It is our portal for tube feeds and PO meds (technically Per Nasus?), or if you put the thing down flip it and reverse it you can use the NGT to decompress the stomach.
3/ Next question: should you place that order that says “OK to use NG tube”?
The graphic below shows a systematic approach to ensure correct placement. This one is good to go!
Take a look at this ECG. Approach it systematically. What do you see?
2/ In the above ECG, you’ve got an irregular narrow complex tachycardia. What’s your final read? Reply with your reasoning!
3/ Let’s take a closer look. In the graphic below, we’ve highlighted what you would expect to see in flutter - and none of it is present here. Our patient is fibbin’ away, folks.
1/ Good morning, #medtwitter! This 1 goes out 2 everyone who hasn’t had to interpret a blood gas since Steps, prelim year or their last episode of ER (@DGlaucomflecken).
FYI: this ain’t a course on Winter’s Formula. We’re talking practical vent adjustments today. #covid4MDs
2/ There are 4 variables we might want to adjust on the vent based on our ABG results: PEEP, FiO2, RR and Vt. The first two we adjust to achieve appropriate oxygenation while the latter two we adjust to achieve adequate ventilation.
3/ Now that we’ve had that brief review, take a look at the following gases. What’s the problem, and how might you fix it?
Keep scrolling through the thread for the answers!
0/ Buongiorno, #medtwitter! We bring to you a #tweetorial on ventilator management for all those folks who don’t normally manage ARDS who have stepped up to help in this pandemic.
All credit goes to @AvrahamCooperMD; the following tweetorial is his brainchild. Thanks, Avi!
1/ Many clinicians are being/will be called to manage ARDS on the ventilator.
Imagine that your patient has just been intubated. Let's walk through the steps of vent mgmt 101:
- Initial housekeeping
- Basic vent management decisions in ARDS
- Management of refractory hypoxemia
2/ First, confirm endotracheal tube position:
- Did capnography confirm tracheal placement?
- Are breath sounds bilateral?
- Is the tube placed appropriately on CXR? (typically 2-5 cm from carina)