6/14 - bit.ly/3gR3UbQ#cpsvmrpearls Both TTP and HUS can p/w kidney injury + neurological Sx. To differentiate b/w them based on clinical Sx, remember that in TTP, the neuro Sx > renal Sx and in HUS, the renal Sx > neuro Sx
6/15 - bit.ly/3ql5IOU#cpsvmrpearls Consider CV & neuro causes when evaluating unwitnessed LOC. Presence & location of tongue bites can help differentiate b/w them: Bites on the a) lateral aspect of the tongue - seizure b) tip of the tongue - syncope c) lips/cheek - PNES
6/16 - bit.ly/35CthJt#cpsvmrpearls CNS involvement is infrequent in small & medium vessel vasculitis which commonly p/w << systemic manifestations, but when present, CNS involvement is a predictor of poor prognosis & indication for aggressive immunosuppressive Tx. (1/2)
However, in large-vessel vasculitis, CNS involvement may benefit from vascular interventions > intensification of immunosuppressive Tx. (2/2) ncbi.nlm.nih.gov/pmc/articles/P…
6/17- bit.ly/35AXWa2#cpsvmrpearls A nodule indicates deep dermal involvement which makes a systemic disease more likely, often a granulomatous pulmonary disease such as TB, NTM, or fungal infections.
6/18 - bit.ly/3vH3ydu#cpsvmrpearls The MC cause of tricuspid regurg = functional regurg 2/2 to R-sided dilation. In the presence of severe regurg w/o RV dilation, think about primary valve disease (eg. ischemia, vegetation, trauma, congenital, rheumatic, CTD, Carcinoid)
6/19 - bit.ly/3gKf4Ag#cpsvmrpearls In a patient presenting with high-risk chest pain, if the EKG and troponin are not diagnostic of ACS, do not delay getting a CT chest. The CT chest can help diagnose emergent causes such as aortic dissection and pulmonary embolism.
6/20 - #cpsvmrpearls A physical exam is helpful in differentiating b/w the ulcers of Leishmaniasis vs Sporotrichosis:
Cutaneous leishmaniasis - well-defined ulcers w/ elevated border
Sporotrichosis - nodules and ulcers along the lymphatic channels
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32F presents with fevers, chills, & malaise x 5 days. Pt is somnolent and accompanied by her husband who denies localizing symptoms.
VS T 39C BP 120/60 HR 100 RR 14 100% RA
2/ While the RN is out of the room, the telemetry alarms for V-tach. When the RN returns, the monitor shows sinus rhythm.
Husband reports that the patient appeared to yell out and then was shivering violently for ~2 minutes.
What in this telemetry strip suggests artifact?
3/ You notice that although at quick first glance, the morphology in lead I and II might resemble a wide complex rhythm, lead III shows sinus tachycardia.
Therefore the limb leads I and II are capturing artifact (probably from movement of the patient).
1/ #MedTwitter, thanks for joining us last week for our case #tweetorial (bit.ly/38rGrZs)! We have more clinical reasoning practice for you today!
67F w/ HTN, HFpEF & RA (on chronic prednisone & PCP PPx) p/w 3 days of progressive dyspnea, malaise & productive cough.
2/ As you get more information, what clinical reasoning tool can you use to determine how the data you gather increases or decreases the probability of the diseases you’re considering?
3/ ANS: Likelihood ratio. LRs help us decide how much each test result increases or decreases the probability of a specific disease.
For example, her history of HF has an LR of ~5 for HF as the cause of her dyspnea, increasing the probability of a HF exacerbation by ~30%.