Point-of-care testing and ultrasound are bubbling

Kidney function is usually estimated with a blood test called creatinine, but that estimate can miss the real number in one patient the way a citywide weather forecast misses the storm on one block. A new 2026 study tested a bedside method that uses a fluorescent tracer and a skin sensor to measure glomerular filtration rate, which is the kidneys’ filtering speed, without repeated blood draws. (sciencedirect.com) That matters because the standard “measured” kidney test is accurate but slow and cumbersome: it usually needs an injected marker plus multiple blood samples over time. Nature Reviews Nephrology wrote in March 2025 that transdermal detection could move kidney measurement closer to real-time care, but only if validation holds up in larger studies and tougher patient groups. (nature.com) Ultrasound is going through the same shift. Point-of-care ultrasound means a clinician uses a portable scanner at the bedside to answer one immediate question, the way a flashlight helps you check one dark corner instead of lighting the whole house. (obgyn.onlinelibrary.wiley.com) One of the fastest-growing bedside ultrasound uses is venous congestion, which is pressure backing up in the veins when the heart cannot handle incoming volume. A 2024 review said physical exam signs and lab tests often miss that backup, while the Venous Excess Ultrasound method uses the inferior vena cava and Doppler patterns in the liver, portal, and kidney veins to grade how severe the congestion is. (link.springer.com) That is why recent teaching around Venous Excess Ultrasound looks more like a protocol than a gadget demo. The review spends its time on probe position, machine settings, waveform pitfalls, and troubleshooting, which tells you the bottleneck is no longer “can the machine do it” but “can the team do it the same way every time.” (link.springer.com) Obstetrics and gynecology is now moving down the same road. The International Society of Ultrasound in Obstetrics and Gynecology published practice guidelines online on November 4, 2025 saying point-of-care ultrasound is a complementary tool for focused questions and procedures, not a replacement for a full specialist ultrasound exam. (obgyn.onlinelibrary.wiley.com) The society is also turning that guidance into training products. Its June 7, 2026 livestream course is called “Point of care ultrasound in obstetrics and gynecology: from ambulatory to emergency settings,” and it adds an in-person workshop on June 12 for hands-on scanning practice. (isuog.org) Device companies are following the same playbook. Butterfly Network now markets not just a handheld probe but a full education stack that includes Butterfly Academy, Butterfly Certified, an artificial-intelligence training app called ScanLab, and assignable courses that administrators can track for clinicians. (butterflynetwork.com 1) (butterflynetwork.com 2) Once a bedside tool turns into a program, the work shifts to governance. The American Association for Clinical Chemistry guidance on point-of-care testing says these programs should be managed by interdisciplinary oversight with training, competency checks, quality assurance, and risk management rather than leaving each unit to improvise. (myadlm.org) Ultrasound programs run into the same wall. A 2024 governance paper says point-of-care ultrasound needs image capture, storage, indexing, review, workflow, and financial planning at the enterprise level, because a bedside scan that is not documented, archived, or supervised properly is hard to bill, hard to audit, and hard to trust at scale. (link.springer.com) So the story is not that a few new bedside tools appeared this week. The story is that kidney testing, venous congestion ultrasound, obstetrics courses, and handheld-device education are all converging on the same model: faster answers at the bedside only work when hospitals treat training, documentation, and oversight as part of the product. (sciencedirect.com) (link.springer.com) (isuog.org) (butterflynetwork.com)