# FixFirst > FixFirst is a free AI-powered blood test analyzer. Upload any blood test PDF or image and get your top 3 health priorities in plain English — ranked by clinical urgency and personalised by age, sex, and lifestyle. No account required, no data stored. ## What FixFirst does FixFirst reads blood test reports (PDFs or images from any lab — LabCorp, Quest Diagnostics, NHS, private clinics) and: 1. Extracts every biomarker using AI document processing 2. Compares each value against evidence-based, sex- and age-adjusted reference ranges 3. Ranks out-of-range findings by clinical urgency 4. Returns the top 3 priorities with plain-English explanations and specific next steps (diet, lifestyle, follow-up) ## Key pages - [Homepage / analyzer](https://fixfirst.health/): Upload a blood test and get your top 3 health priorities - [Analyze](https://fixfirst.health/analyze): The main upload and analysis tool - [Blood test analyzer](https://fixfirst.health/blood-test-analyzer): Feature overview, how AI reads and interprets a report, and how to read results yourself - [Free analysis](https://fixfirst.health/free-analysis): Free tier explanation - [Sample report](https://fixfirst.health/sample-report): Example analysis output - [How it works](https://fixfirst.health/how-it-works): Step-by-step product explainer - [All guides](https://fixfirst.health/guides): Index of every biomarker, symptom, and panel guide - [Best AI blood test analyzers (2026)](https://fixfirst.health/best-ai-blood-test-analyzers): Criteria-based roundup comparing FixFirst, Docus AI, SiPhox, general AI, lab portals, Function Health, and InsideTracker - [FixFirst vs ChatGPT](https://fixfirst.health/vs-chatgpt): Why a deterministic engine beats a general chatbot for lab interpretation - [FixFirst vs InsideTracker](https://fixfirst.health/vs-insidetracker): Comparison with a paid subscription analyzer ## Trust & methodology - [About](https://fixfirst.health/about): Founder (Ankit Agarwal) and medical reviewer (Dr. Prahlad Rai Gupta, MD) - [Methodology](https://fixfirst.health/methodology): The 4-stage engine — extraction, threshold correction, ranking, recommendations — and the guidelines it anchors to (ADA, ATA, ACC/AHA, NICE CKS, NIH ODS, WHO) - [Medical review policy](https://fixfirst.health/medical-review-policy): What is and isn't clinically reviewed, and review cadence - [Editorial policy](https://fixfirst.health/editorial-policy): Authorship and correction process ## Symptom guides (which blood tests to run for…) - [Fatigue](https://fixfirst.health/blood-tests-for-fatigue) - [Normal results but still tired](https://fixfirst.health/normal-blood-test-but-feel-tired) - [Brain fog](https://fixfirst.health/brain-fog-blood-test) - [Hair loss](https://fixfirst.health/blood-tests-for-hair-loss) - [Anxiety](https://fixfirst.health/blood-tests-for-anxiety) - [Low mood](https://fixfirst.health/blood-tests-for-low-mood) - [Joint pain](https://fixfirst.health/blood-tests-for-joint-pain) - [Low libido](https://fixfirst.health/blood-tests-for-low-libido) - [Dizziness](https://fixfirst.health/blood-tests-for-dizziness) - [Muscle weakness](https://fixfirst.health/blood-tests-for-muscle-weakness) - [Cold intolerance](https://fixfirst.health/blood-tests-for-cold-intolerance) - [Frequent illness](https://fixfirst.health/blood-tests-for-frequent-illness) - [Weight loss resistance](https://fixfirst.health/blood-tests-for-weight-loss) ## Single-marker guides - [Low ferritin](https://fixfirst.health/low-ferritin) - [Low vitamin D](https://fixfirst.health/low-vitamin-d) - [Low vitamin B12](https://fixfirst.health/low-vitamin-b12) - [Low magnesium](https://fixfirst.health/low-magnesium) - [High HbA1c](https://fixfirst.health/high-hba1c) - [High LDL cholesterol](https://fixfirst.health/high-ldl-cholesterol) - [High triglycerides](https://fixfirst.health/high-triglycerides) - [High TSH](https://fixfirst.health/high-tsh) - [High creatinine](https://fixfirst.health/high-creatinine) - [CRP / hsCRP](https://fixfirst.health/crp-blood-test) - [HbA1c](https://fixfirst.health/hba1c-blood-test) - [TSH](https://fixfirst.health/tsh-blood-test) - [Fasting insulin](https://fixfirst.health/fasting-insulin-blood-test) ## Panel guides (how to read a full panel) - [CBC](https://fixfirst.health/how-to-read-cbc) · [CBC overview](https://fixfirst.health/cbc-blood-test) - [CMP](https://fixfirst.health/how-to-read-cmp) · [CMP overview](https://fixfirst.health/comprehensive-metabolic-panel) - [Lipid panel](https://fixfirst.health/how-to-read-lipid-panel) · [Lipid overview](https://fixfirst.health/lipid-panel-blood-test) - [Thyroid panel](https://fixfirst.health/how-to-read-thyroid-panel) - [Liver function](https://fixfirst.health/liver-function-blood-test) ## Multi-marker & prioritisation guides - [How to read blood test results](https://fixfirst.health/how-to-read-blood-test-results) - [Abnormal blood test results guide](https://fixfirst.health/abnormal-blood-test-results-guide) - [Multiple abnormal results](https://fixfirst.health/multiple-abnormal-blood-test-results) - [Which result to prioritise](https://fixfirst.health/blood-test-results-priority) ## Multi-marker combination guides Two-marker combinations that share a single root cause, with the mechanism, trial evidence, and which marker to treat first: - [High TSH + low ferritin](https://fixfirst.health/high-tsh-low-ferritin): Hypothyroidism impairs iron absorption; RCT evidence favours treating both together, not thyroid alone - [High TSH + high LDL](https://fixfirst.health/high-tsh-high-ldl): An underactive thyroid slows LDL clearance; check thyroid before starting a statin - [Low ferritin + high cholesterol](https://fixfirst.health/low-ferritin-high-cholesterol): Usually a shared thyroid cause, but four distinct scenarios are covered with the markers that distinguish each ## Biomarkers covered - [Hemoglobin](https://fixfirst.health/blood-test-analyzer): Red blood cell protein; sex-adjusted thresholds applied - [Ferritin](https://fixfirst.health/blood-test-analyzer): Iron storage marker; sex-adjusted thresholds applied - [Vitamin D (25-OH)](https://fixfirst.health/low-vitamin-d): Deficiency threshold at 30 ng/mL - [Vitamin B12](https://fixfirst.health/low-vitamin-b12): Functional deficiency can occur within normal lab range - [TSH](https://fixfirst.health/tsh-blood-test): Thyroid-stimulating hormone; suboptimal zone flagged - [HbA1c](https://fixfirst.health/hba1c-blood-test): Long-term blood glucose average - [LDL cholesterol](https://fixfirst.health/high-ldl-cholesterol): Cardiovascular risk marker - [Triglycerides](https://fixfirst.health/high-triglycerides): Metabolic risk marker - [ALT / AST](https://fixfirst.health/blood-test-analyzer): Liver enzymes; sex-adjusted thresholds applied - [Creatinine / eGFR](https://fixfirst.health/high-creatinine): Kidney function markers - [CRP / hsCRP](https://fixfirst.health/blood-test-analyzer): Inflammation marker - [Uric acid](https://fixfirst.health/blood-test-analyzer): Sex-adjusted thresholds applied - [Full CBC panel](https://fixfirst.health/how-to-read-cbc): WBC, neutrophils, lymphocytes, MCV, MCH, MCHC, RDW, platelets ## Clinical approach - Reference ranges sourced from AACC (American Association for Clinical Chemistry) and NHS clinical guidelines - Thresholds adjusted by sex for: hemoglobin, ferritin, HDL cholesterol, ALT, uric acid - Priority ranking considers severity, direction (high vs low), co-occurring markers, and user lifestyle context - Content reviewed by a qualified medical advisor - FixFirst is an educational tool, not a medical device. It does not diagnose conditions or replace clinical consultation. ## Privacy FixFirst does not store uploaded reports or results. Reports are processed in memory and discarded after analysis. No user account or personal data is required or retained. ## About - URL: https://fixfirst.health - Contact: via https://fixfirst.health - Last updated: 2026-06-22