MedForge / Apps / Acid-Base Solver
Renal · Lab puzzle
Acid-Base Solver
Work the blood gas, step by step.
Cases from DKA to toxic alcohols, tubular acidoses and mixed disorders. Walk the analyzer ticket through pH, primary process, compensation, anion gap and delta ratio.
Free preview: the first two cases. Unlock the full library. $2.99/month or $19.99/year
Live demo of Acid-Base Solver
Try it: a live blood gas workup
Pick a case or move the sliders. The five-step reasoning updates instantly.
In the app
A real screen from Acid-Base Solver
From the iPhone app, in a pre-release build. The Android app follows the same design, and the text size can be changed from 40% to 300% on every screen.
Sources
Every fact in this app is cited
These are the references this app draws on. Inside the app, each answer links to its source in a reading window that keeps your place.
- Metformin hydrochloride extended-release tablets prescribing informationNLM DailyMed (FDA-approved prescribing information) · FDA label / NLM DailyMed
- Acidosis (encyclopedia)NLM MedlinePlus · NIH / NLM MedlinePlus
- Alcoholic ketoacidosis (encyclopedia)NLM MedlinePlus · NIH / NLM MedlinePlus
- Alkalosis (encyclopedia)NLM MedlinePlus · NIH / NLM MedlinePlus
- Cardiac arrest (encyclopedia)NLM MedlinePlus · NIH / NLM MedlinePlus
- Ethylene glycol poisoning (encyclopedia)NLM MedlinePlus · NIH / NLM MedlinePlus
- High potassium level (encyclopedia)NLM MedlinePlus · NIH / NLM MedlinePlus
- Metformin: drug informationNLM MedlinePlus · NIH / NLM MedlinePlus
- Methanol poisoning (encyclopedia)NLM MedlinePlus · NIH / NLM MedlinePlus
- Opioid intoxication (encyclopedia)NLM MedlinePlus · NIH / NLM MedlinePlus
- Respiratory acidosis (encyclopedia)NLM MedlinePlus · NIH / NLM MedlinePlus
- Respiratory alkalosis (encyclopedia)NLM MedlinePlus · NIH / NLM MedlinePlus
- What is chronic kidney disease?National Institute of Diabetes and Digestive and Kidney Diseases · NIDDK / NIH
- Breathing and balance: Clinical insights and management strategies of respiratory acid-base disordersPubMed Central (Nutrition in Clinical Practice, 2025) · PMC peer-reviewed review
- AlkalosisStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Chronic Kidney DiseaseStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Ethylene Glycol ToxicityStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- HypercapniaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- HyperkalemiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- KetoacidosisStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Metformin-Associated Lactic Acidosis (MALA)StatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Methanol ToxicityStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Opioid ToxicityStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Renal Tubular AcidosisStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Recognising and managing albuterol-induced lactic acidosisBMJ Case Reports, via PubMed Central · Peer-reviewed case report (PMC)
- Pulmonary care for ALS: Progress, gaps, and paths forwardMuscle and Nerve, via PubMed Central · Peer-reviewed review (PMC)
- Time course and magnitude of ventilatory and renal acid-base acclimatization following rapid ascent to and residence at 3,800 m over nine daysJournal of Applied Physiology, via PubMed Central · Peer-reviewed study (PMC)
- Clinical review: severe asthmaCritical Care, via PubMed Central · Peer-reviewed review (PMC)
- D-Lactic Acidosis: An Underrecognized Complication of Short Bowel SyndromeGastroenterology Research and Practice, via PubMed Central · Peer-reviewed review (PMC)
- Metabolic acidosis in short bowel syndrome: think D-lactic acid acidosisBMJ Case Reports, via PubMed Central · Peer-reviewed case report (PMC)
- Pivotal role of venous blood gas analysis in the detection of metabolic acidosis due to laxative abuse in an anorexia nervosa patient: A case reportPCN Reports, via PubMed Central · Peer-reviewed case report (PMC)
- Milk-Alkali SyndromeMayo Clinic Proceedings, via PubMed Central · Peer-reviewed review (PMC)
- Differential diagnosis of nongap metabolic acidosis: value of a systematic approachClinical Journal of the American Society of Nephrology, via PubMed Central · Peer-reviewed review (PMC)
- The Expanding Spectrum of Primary Aldosteronism: Implications for Diagnosis, Pathogenesis, and TreatmentEndocrine Reviews, via PubMed Central · Peer-reviewed review (PMC)
- Unexplained Metabolic Acidosis: Alcoholic Ketoacidosis or Propylene Glycol ToxicityJournal of Medical Toxicology, via PubMed Central · Peer-reviewed case report (PMC)
- Development and Evaluation of a Guideline for Monitoring Propylene Glycol Toxicity in Pediatric Intensive Care Unit Patients Receiving Continuous Infusion LorazepamJournal of Pediatric Pharmacology and Therapeutics, via PubMed Central · Peer-reviewed study (PMC)
- Post-Hypercapnic Alkalosis: A Brief ReviewElectrolyte and Blood Pressure, via PubMed Central · Peer-reviewed review (PMC)
- Cerebrospinal fluid and arterial acid-base equilibria in spontaneously breathing third-trimester pregnant womenBritish Journal of Anaesthesia, via PubMed Central · Peer-reviewed study (PMC)
- Evaluating acid-base status and perfusion: arterial and venous blood gases during pregnancyPubMed Central · Peer-reviewed review (PMC)
- Proximal renal tubular acidosis: a not so rare disorder of multiple etiologiesNephrology Dialysis Transplantation, via PubMed Central · Peer-reviewed review (PMC)
- Pseudo-Bartter syndrome as the initial presentation of cystic fibrosis in children: an important diagnosis not to be missedBMJ Case Reports, via PubMed Central · Peer-reviewed case report (PMC)
- Balanced Crystalloid SolutionsAmerican Journal of Respiratory and Critical Care Medicine, via PubMed Central · Peer-reviewed review (PMC)
- Acute metabolic effects of tonic-clonic seizuresEpilepsia Open, via PubMed Central · Peer-reviewed study (PMC)
- Metabolic Acidosis or Respiratory Alkalosis? Evaluation of a Low Plasma Bicarbonate Using the Urine Anion GapAmerican Journal of Kidney Diseases, via PubMed Central · Peer-reviewed review (PMC)
- High-Altitude OxygenationStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Status AsthmaticusStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Cystic FibrosisStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- HyperaldosteronismStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Milk-Alkali SyndromeStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Acetazolamide tablets prescribing informationNLM DailyMed (FDA-approved prescribing information) · FDA label / NLM DailyMed
- Lasix (furosemide) prescribing informationNLM DailyMed (FDA-approved prescribing information) · FDA label / NLM DailyMed
- Arterial Blood Gas (ABG) TestNational Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Anion Gap Blood TestNational Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Diabetic ketoacidosis (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Lactate TestNational Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Lactic acidosis (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Metabolic acidosis (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Obesity hypoventilation syndrome (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Aspirin overdose (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Cardiac ArrestNational Heart, Lung, and Blood Institute (NIH) · NHLBI / NIH
- Obesity Hypoventilation SyndromeNational Heart, Lung, and Blood Institute (NIH) · NHLBI / NIH
- Venous Thromboembolism: Pulmonary EmbolismNational Heart, Lung, and Blood Institute (NIH) · NHLBI / NIH
- Gitelman syndrome (MedlinePlus Genetics)National Library of Medicine, MedlinePlus Genetics · NIH / NLM MedlinePlus
- Bartter- and Gitelman-like syndromes: salt-losing tubulopathies with loop or DCT defectsPubMed Central · Peer-reviewed review (PMC)
- Gitelman SyndromeStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Acid-Base BalanceOpenStax, Rice University (peer-reviewed open textbook) · OpenStax (Rice University)
- Arterial Blood Gas Analysis: Fundamentals, Interpretation, and Clinical UtilityStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- AcetazolamideStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Physiology, Acid Base BalanceStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Biochemistry, Anion GapStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Anion Gap and Non-Anion Gap Metabolic AcidosisStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Salicylic Acid (Aspirin)StatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Adult Diabetic KetoacidosisStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Lactic AcidosisStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Loop DiureticsStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Physiology, Metabolic AlkalosisStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Obesity-Hypoventilation SyndromeStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Acute Pulmonary EmbolismStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Respiratory AcidosisStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
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