Best AI for Nephrology: Cited Answers on the Kidney

Which AI tools answer nephrology questions?

This guide compares the AI tools that nephrologists, renal fellows, dialysis and ward nurses, pharmacists and students weigh for kidney questions, and each one does a different job. AskMed is an AI medical reference that answers questions on acute kidney injury, chronic kidney disease, potassium and sodium disorders, glomerular disease and kidney stones from journals, guidelines and drug labels, with a link after every claim, for anyone in medicine in any country. OpenEvidence is a clinical AI search engine for verified healthcare professionals; its App Store listing says an NPI is required and lists the American Urological Association among its content agreements. UpToDate Expert AI is the AI companion to the UpToDate clinical reference and needs an UpToDate subscription with Expert AI enabled. ChatGPT is OpenAI's general chatbot. AI scribes, billing software and tools that analyze kidney images are different categories and are left out. The table shows what each tool is, where its answers come from and who can use it.

OpenEvidence

OpenEvidence describes itself as a clinical decision support platform and medical search engine for healthcare professionals. Its US App Store listing names NEJM, JAMA and its 11 specialty journals, NCCN, Nature, the Cochrane Library and Wiley as official AI partners, and lists content agreements and collaborations with medical societies, the American Urological Association among them. The listing marks an NPI as required, says users must verify their healthcare professional status, and says the app contains advertising. OpenEvidence's Terms of Use say the service is not available in the European Union, the United Kingdom or the European Economic Area, so renal teams there need another tool. AskMed vs OpenEvidence compares the two in detail.

UpToDate Expert AI

UpToDate Expert AI is an AI-powered companion to the UpToDate clinical reference. Its App Store listing says it gives evidence-based responses grounded in UpToDate content, and that access requires an UpToDate subscription with Expert AI enabled, through an enterprise account or a personal subscription. It suits clinicians whose hospital already uses UpToDate. AskMed vs UpToDate Expert AI compares the two side by side.

ChatGPT

ChatGPT is OpenAI's general AI chatbot, on the web, iPhone and Android. It helps to talk through renal physiology or draft a dialysis education leaflet, but it is not limited to medical sources, so check any clinical claim against the guideline first. OpenAI also runs ChatGPT for Clinicians, which its help center opens to verified US clinicians with an NPI and a license check. Is ChatGPT accurate for medical questions? covers what studies found.

KDIGO and NICE resources without AI chat

Many renal clinicians keep the guideline itself open next to their AI tool. KDIGO's guideline index runs from acute kidney injury to the transplant recipient, with each guideline's full text and executive summary. In the UK, NICE publishes NG203 on chronic kidney disease (August 2021, last updated November 2021), NG148 on acute kidney injury (December 2019, last updated October 2024) and NG118 on renal and ureteric stones (January 2019). These are for reading the guideline itself, which is also where an AI answer should lead you.

How does AskMed answer a nephrology question?

AskMed answers a nephrology question in four steps, and you can check each one. First, AskMed rewrites the question as a precise medical search query, and for management questions it adds "latest guideline update" so the newest guidance is found. Second, AskMed searches a fixed list of medical sites, never the open web or forums; for the kidney, that list includes KDIGO, NICE, NEJM, The Lancet, JAMA, The BMJ, PubMed, PubMed Central and the Cochrane Library, plus FDA and DailyMed drug labels. Third, AskMed ranks what it found: guidelines and health agencies first, then systematic reviews and meta-analyses, then reviews and references, then large trials, preferring work from the last 10 years. Fourth, an AI language model writes the answer with a link after every claim, gives the year of each guideline recommendation and says so when sources disagree. If no usable source turns up, AskMed says that instead of answering from memory.

Kidney journals such as Kidney International, JASN and AJKD are not on that list by name, so their papers reach AskMed as PubMed abstracts or as full text on PubMed Central, while KDIGO's guidelines are searched on kdigo.org itself. AskMed is told to give both units when countries report a measurement differently, as they do for creatinine (mg/dL or µmol/L). For evidence questions such as "Do SGLT2 inhibitors slow CKD progression in people without diabetes?", Research Mode reads the most relevant source in full before it writes the answer. How AskMed answers lists every source.

Can AI help work up acute kidney injury?

AI can help work up acute kidney injury by applying the KDIGO definition and staging to the numbers you give it and listing the causes to look for, with a source for each step, but it cannot examine the patient. The KDIGO 2012 Clinical Practice Guideline for Acute Kidney Injury defines AKI as a rise in serum creatinine of at least 0.3 mg/dL (26.5 µmol/L) within 48 hours, a rise to at least 1.5 times baseline known or presumed to have occurred within the prior 7 days, or urine output below 0.5 mL/kg/h for 6 hours. It stages severity from 1 to 3 by creatinine and urine output, and says the cause should be determined whenever possible. The 2012 guideline is still the published version: KDIGO's AKI page says a 2026 guideline on AKI and acute kidney disease has been through public review and is being prepared for publication. AskMed searches kdigo.org directly, so an answer can say which version it used.

• Which stage? Give the baseline and current creatinine with their dates, and the urine output. In KDIGO 2012, stage 2 is 2.0–2.9 times baseline, and stage 3 is 3.0 times baseline, a creatinine of 4.0 mg/dL (353.6 µmol/L) or more, the start of kidney replacement therapy, or urine output below 0.3 mL/kg/h for 24 hours or anuria for 12 hours.
• Which cause? KDIGO asks for prompt evaluation with special attention to reversible causes. Ask for the prerenal, intrinsic and postrenal causes that fit your findings, and paste the medicine list to see which drug classes can harm the kidney.
• Why not eGFR? Creatinine-based eGFR assumes stable kidney function, so it does not reflect GFR while creatinine is still rising or falling, as the eGFR calculator explains.
• After discharge. KDIGO 2012 says to evaluate patients 3 months after AKI for resolution, new CKD or worsening of existing CKD. In the UK, NICE NG148 covers prevention, detection and management.

Can AI stage chronic kidney disease by KDIGO?

AI can stage chronic kidney disease by KDIGO when it is given the GFR, the urine albumin-to-creatinine ratio (ACR) and how long they have been abnormal, and it should name the 2024 guideline it uses. The KDIGO 2024 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease, published in Kidney International, defines CKD as abnormalities of kidney structure or function present for a minimum of 3 months, with implications for health. It classifies CKD by Cause, GFR category (G1 to G5) and Albuminuria category (A1 to A3), abbreviated CGA. A1 is an ACR below 30 mg/g (3 mg/mmol), A2 is 30 to 300 mg/g (3 to 30 mg/mmol) and A3 is above 300 mg/g (30 mg/mmol). The guideline recommends creatinine-based eGFR in adults at risk for CKD, combined with cystatin C when it is available, and an externally validated equation to estimate the absolute risk of kidney failure in CKD G3 to G5.

• GFR category. The eGFR calculator uses the CKD-EPI 2021 equation without a race term and shows the KDIGO G category; CKD-EPI vs MDRD explains why the older equations were replaced.
• When to refer. KDIGO 2024 says a 5-year kidney failure risk of 3% to 5% from a validated equation can be used, with eGFR and ACR criteria, to decide on nephrology referral.
• Which drug classes. Ask what KDIGO 2024 recommends by class, for example renin-angiotensin system inhibitors in CKD with diabetes and A2 or A3 albuminuria, and SGLT2 inhibitors in type 2 diabetes with CKD and an eGFR of 20 or more. AskMed gives the class and the evidence, never the dose.
• Creatinine after starting an ACE inhibitor or ARB. KDIGO 2024 says to continue it unless serum creatinine rises by more than 30% within 4 weeks of starting or of a dose increase.
• Mineral and bone. The corrected calcium calculator and the guide to the calcium phosphate product in CKD cover two common lab questions.

Can AI help manage hyperkalemia and other electrolyte problems?

AI can help with hyperkalemia and other electrolyte problems by grading the result, listing what to check and ordering the treatment steps by drug class with a citation for each, but it should give no doses, which come from your local protocol. KDIGO has no stand-alone potassium guideline; its 2018 Controversies Conference on potassium, published in Kidney International in 2020, covers chronic hyperkalemia and its treatment in the emergency department and on the ward. The UK Kidney Association's guideline on hyperkalaemia in adults, updated in July 2026, grades hyperkalaemia as mild at 5.5 to 5.9 mmol/L, moderate at 6.0 to 6.4 mmol/L and severe at 6.5 mmol/L or above, and covers the community, hospital and resuscitation settings. That update lowered the evidence grade for IV calcium after a 2025 ILCOR systematic review found no evidence for or against its use. In CKD, KDIGO 2024 says hyperkalemia on renin-angiotensin system inhibitors can often be managed by lowering potassium rather than reducing or stopping the inhibitor.

• Hyperkalemia. Ask how treatment is ordered by drug class (protecting the heart, shifting potassium into cells, removing it from the body) and which drugs on the list raise potassium. The KDIGO potassium conference report is on PubMed; the UKKA guideline sits on ukkidney.org, which is not on AskMed's source list, so open it directly.
• Acid–base. Work out the gap with the anion gap calculator, which corrects it for a low albumin, then use the delta gap and delta ratio to look for a mixed disorder before asking AskMed for the causes that fit.
• Sodium. For hyponatremia, the 2014 European clinical practice guideline on hyponatraemia in Nephrology Dialysis Transplantation sets out the diagnostic steps; give the serum and urine values and ask which category fits.
• Calcium. Correct a total calcium for albumin with the corrected calcium calculator before asking about hypercalcemia or hypocalcemia.

Can AI help with glomerulonephritis and nephrotic syndrome?

AI can help with glomerulonephritis and nephrotic syndrome by sorting a nephritic from a nephrotic picture, listing the serology and urine tests that narrow the cause, and pointing to the right KDIGO guideline, but the diagnosis often rests on a kidney biopsy that no chatbot can read. The KDIGO 2021 Clinical Practice Guideline for the Management of Glomerular Diseases covers the main glomerular diseases, and KDIGO has since published separate guidelines on lupus nephritis (2024), ANCA-associated vasculitis (2024), nephrotic syndrome in children (2025) and IgA nephropathy and IgA vasculitis (2025). The 2025 IgA guideline says IgA nephropathy can be diagnosed only with a kidney biopsy, says a biopsy should be considered in adults with proteinuria of 0.5 g/day or more in whom IgA nephropathy is possible, and says proteinuria should be kept below 0.5 g/day and ideally below 0.3 g/day. AskMed searches kdigo.org, so an answer can cite the guideline that applies and give its year.

• Nephritic or nephrotic? Give the urinalysis, the protein measure, the albumin and the blood pressure, and ask which tests come next and why.
• Biopsy reports. Paste the pathology report's text and ask what the guideline does with that finding; AskMed reads text, not slides or images, and attachments explains what is read.
• Treatment questions. Ask by guideline and year, for example what the KDIGO 2024 lupus nephritis guideline, the 2024 ANCA vasculitis guideline or the 2025 IgA guideline says about drug classes and response targets. AskMed names the classes and never the doses.

What should renal fellows, nurses, pharmacists and students look for in an AI?

Renal fellows, nurses, pharmacists and students need an AI tool whose answers can be checked in seconds and that names the guideline edition it quotes. Four checks matter. First, citations: each claim should link to the guideline, trial or drug label behind it, not to a reading list at the end. Second, the edition: KDIGO has published new guidelines on CKD, lupus nephritis, ANCA vasculitis and IgA nephropathy since 2024 and has an AKI update on the way, so an answer should give the year. Third, units and doses: AskMed gives creatinine in both units where countries differ, and explains how dosing is adjusted for kidney function without giving numbers. Fourth, access: OpenEvidence's App Store listing says an NPI is required and its Terms exclude the UK, EU and EEA, and UpToDate Expert AI needs an UpToDate subscription with Expert AI enabled. AskMed needs no NPI or license, works in any country and carries no pharma advertising.

• Fellows and residents. Research Mode for journal club and for "what changed in the 2024 CKD guideline?" questions on rounds.
• Dialysis and ward nurses. Fluid balance, what to monitor on a nephrotoxic drug, and what a potassium or creatinine result means for the next check, with sources.
• Pharmacists. Which drugs need adjustment in reduced kidney function and why, and which combinations raise potassium or harm the kidney, by class and without doses.
• Students. Paste an exam-style question with its options: the first sentence names the correct option and the answer explains why each other option is wrong.
• Stones and urology. NICE NG118 covers the assessment and management of renal and ureteric stones, and AskMed searches nice.org.uk directly.

What are the limits of AI for nephrology?

The main limit of AI for nephrology is that an answer can only be as good as its sources and the numbers it was given, and kidney guidance keeps changing, with several new KDIGO guidelines since 2024 and an AKI update in preparation. AskMed searches a fixed list of medical sites, so a society guideline published elsewhere, such as the UK Kidney Association's, may reach AskMed only as a PubMed abstract, and every AskMed answer is written by an AI language model that can misread a source; no person reviews it first. Open the citation behind any sentence you act on and check that it covers the same patients, since evidence in stable CKD does not answer a question about AKI in intensive care. AskMed reads text, not biopsy slides, ultrasound images or dialysis machine data, and it gives no doses. AskMed is for education and reference by healthcare professionals and students, not for emergencies or for patients' self-diagnosis.

• Check the source. Every AskMed claim has its own link, so you check one sentence against one page.
• Check the numbers. Staging depends on a true baseline creatinine and on timing; a wrong baseline gives a wrong AKI stage, whoever does the sum.
• Report what looks wrong. Tap the thumbs down under an AskMed answer and pick a reason, such as Inaccurate or Sources don't match.

Best AI for pharmacists covers drug information tools, and best AI for nurses covers tools for nursing questions.