Nathaniel Reisinger

Kidney doc: St Louis Kidney Consultants
Adjunct Assistant Professor of Medicine University of Pennsylvania
#POCUS #renal #stones #gn #htn #electrolyte #acidbase

[Nathaniel Reisinger @nephrothaniel]

Clinical Ultrasound Fellowship @PennUltrasound

⚡️ A Tweetorial ⚡️

🧠 1 year fellowship
🫁 for the IM, EM, FM trained (yes nephrologists!)
🫀 training leaders in #pocus research & education
👁️ instructor position

more: https://t.co/Cc0g1nUllh
apply: https://t.co/NAfujmSHtd

[Nathaniel Reisinger @nephrothaniel]

I'm not saying it usually sells out within 48 hours, but be sure to sign up early for the @ASNKidney #POCUS for Nephrologists early program featuring the quadruply-boarded course chair @NephroP! 🧠🥇😀 #kidneyweek2026

https://t.co/xLCYe0CPqf

[Jay R. Seltzer @jrseltzer]

RBC cast - brightfield and oblique/darkfield, with SM stain - from patient with AKI in the setting of MSSA MV endocarditis and vertebral osteomyelitis - #UrinarySediment #UrineMicroscopy

[Jay R. Seltzer @jrseltzer]

Some amazing uric acid crystals - incidental finding in a case of mild AKI - #UrinarySediment #UrineMicroscopy

[Nathaniel Reisinger @nephrothaniel]

Quadruple boarded #pocus guru @NephroP warming up the crowd as we wait for more to arrive for the sold out #pocus early session @nkf #scm26

[NephroPOCUS @NephroP]

Nice to see our #POCUS perspective featured in @asnpublications "In The Loop". Encouraging to see POCUS getting more thoughtful attention in #nephrology; still a lot of work ahead on developing training standards. @AmirKazory @nephrothaniel
🔗https://t.co/UnKzJEEeKH

[NephroPOCUS @NephroP]

A milestone moment for #Nephrology‼️
For the first time, a multi-organ #POCUS chapter finds its place in Brenner & Rector’s "The Kidney", the book many of us grew up calling the bible of nephrology.
Truly special to be part of this moment with @ArgaizR and @nephrothaniel. Couldn’t have asked for better colleagues to share this journey with 🎉
Feels like an inflection point. #POCUS in nephrology is no longer confined to kidney #ultrasound.
Grateful to @AlanYuNeph, @valerie_luyckx and the entire editorial team for the trust in us.

[NephroPOCUS @NephroP]

Excited for the #NKFClinicals #POCUS precourse - less than a month to go.
@NKF_NephPros @nephrothaniel
If you’re looking to build solid fundamentals and get the hand–eye coordination right, this is a great place to start, with hands-on teaching from experienced faculty.
It’s also one of the most accessible courses from a pricing standpoint. Have no financial COI here - just sharing because it’s impossible to find a one-day course at this value.
Advanced echo, #VExUS are not covered but that foundation makes everything else much easier to learn later.
Registration: https://t.co/7TZvr55riK

[NephroPOCUS @NephroP]

Right in time for #NephMadness, here’s our Kidney360 perspective on a trend we’ve been noticing - early labeling of #POCUS 'expertise', particularly in #Nephrology.
@nephrothaniel @AmirKazory
🔗https://t.co/KWCuNgDttU
No one learned the physical exam in a day, so why do we expect POCUS competency to happen that fast, particularly when the scope is all over the place, from just IVC checks to full-on hemodynamic assessment?

We’re big believers in the value of POCUS but to help it reach its full potential, we need better standardization in both training and competency assessment so the field continues to grow in the right direction.

[NephroPOCUS @NephroP]

.@nephrothaniel emphasizes that #POCUS courses are just the starting point, not a substitute for longitudinal deliberate practice. #SWNC2026 #Nephmadness

[Nathaniel Reisinger @nephrothaniel]

Thank you Jack for helping demonstrate #POCUS for nephrologists! #SWNC2026

As we discussed I'm posting your story to help you finds a donor! Please see the link on the image attached

@NephroP

[Nathaniel Reisinger @nephrothaniel]

Consummate angler @NephroP (and world-leading #POCUS in nephrology expert) presenting another beautiful slide on the basics of Doppler US

Marking the 10th year since the inception of the annual #POCUS in Nephrology Immersion Course at the #SWNC nephrology conference @nkf of AZ!

[NephroPOCUS @NephroP]

Happy to contribute a guest post to the @AJKDonline Blog this #NephMadness season, discussing the #POCUS region and the shift from guessing about volume status/hemodynamics to visualizing physiology at the bedside.
Thanks @jrkott27 and team.
🔗 https://t.co/9RKc3Ic1ba

[NEJM @NEJM]

In adults with type 1 diabetes and chronic kidney disease with albuminuria, the decrease in the urinary albumin-to-creatinine ratio was significantly greater with finerenone than with placebo. Full phase 3 FINE-ONE trial results: https://t.co/E2ThxUUtfX

Editorial: Finerenone for Diabetic Kidney Disease in Type 1 Diabetes — A Fine Answer? https://t.co/xUQ07dMJwt

[Jay R. Seltzer @jrseltzer]

Lipid casts and oval fat bodies - darkfield with SM stain, and under polarized light - in patient with worsening nephrotic proteinuria and prior bx dx of ANCA negative pauci-immune GN - repeat biopsy planned - #UrineMicroscopy #UrinarySediment

[NephroPOCUS @NephroP]

Delighted to contribute the renal and bladder ultrasound chapter for this excellent advanced #POCUS textbook with @ArgaizR and Dr. Beaubien Souligny. Grateful to the editors for the opportunity.

[Jay R. Seltzer @jrseltzer]

Bilirubin crystals under polarized light #UrineMicroscopy #UrinarySediment

[POCUS Journal @POCUSJournal]

⚡️ The November issue of POCUS Journal, Vol 10 Issue 2, is out now! We invite you to visit our website (https://t.co/UlDOFX3DUX) to read articles of interest! 📷 https://t.co/ncZ0h0Pb9K #POCUSJournal #POCUS #FOAMed #FOAMus #MedEd #MedTwitter #echofirst #echo #ultrasound

[NephroPOCUS @NephroP]

From knobology to #VExUS, from basics to advanced hemodynamics - it’s all happening at the @nkf Arizona #POCUS Immersion Course, March 12-13 2026!
Perfect for nephrologists ready to level up their bedside skills 🎯Led by @nephrothaniel, featuring eminent experts in the field.
#Nephrology #SWNC2026
Register here 🔗https://t.co/U4tD99KIjZ

[Nathaniel Reisinger @nephrothaniel]

Great proof of concept poster @DallasRenal OP #POCUS in kidney transplant clinic identified hydronephrosis, perinephric collections, vascular flow abnormalities, volume status issues, and bladder outlet problems, obviating hospitalization or ED referral in 90% #kidneywk

[Nathaniel Reisinger @nephrothaniel]

Baxdrostat in CKD + HTN: ~8 mmHg lower SBP and ~55% lower albuminuria vs placebo & consistent across subgroups. Aldosterone synthase inhibition looks promising. #Kidneywk #hypertension