Dr. Thomas Klein is a board-certified clinical hematologist serving as Chief Medical Officer at Kantesti AI. With over 15 years of experience in laboratory medicine and a strong interest in AI-supported interpretation of blood test results, he works to connect new technology with everyday clinical practice. His areas of interest include biomarker analysis, clinical decision support research and population-specific reference range optimization. As CMO, he contributes clinical input to the platform's internal benchmarking and provides clinical oversight for the medical quality of Kantesti's educational reports.

Procalcitonin Normal Range: Sepsis Risk and Trends

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Infection Biomarker Lab Interpretation 2026 Update Patient-Friendly A procalcitonin result is most useful as a moving signal, not a standalone verdict. Here is how clinicians separate low-level inflammation from bacterial infection patterns and act quickly when sepsis is possible. 📖 ~11 minutes 📅 September 29, 2026 📝 Published: September 29, 2026 🩺 Medically Reviewed: September 29, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is […]

Factor V Leiden Test Positive: Clot Risk and Next Steps

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Inherited Thrombophilia Lab Interpretation 2026 Update Patient-Friendly A positive inherited-thrombophilia result describes a tendency, not a diagnosis. The decisions that matter depend on your variant, clot history, hormones, pregnancy plans, and upcoming risks. 📖 ~11 minutes 📅 September 28, 2026 📝 Published: September 28, 2026 🩺 Medically Reviewed: September 28, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a board-certified clinical hematologist and internist […]

Anti-Smith Antibody Positive: Lupus Meaning and Next Steps

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Autoimmune Health Lab Interpretation 2026 Update Patient-Friendly Anti-Sm is one of the most lupus-specific antibodies, but a laboratory result never replaces a clinical diagnosis. The useful question is whether the result fits your symptoms and the rest of your testing. 📖 ~11 minutes 📅 September 28, 2026 📝 Published: September 28, 2026 🩺 Medically Reviewed: September 28, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein […]

Methemoglobin Test Results: High Levels and Care

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Co-Oximetry Lab Interpretation 2026 Update Patient-Friendly A co-oximetry result can identify an oxygen-carrying problem that a pulse oximeter may miss. Here is how to read the percentage, identify likely triggers, and know when emergency care is needed. 📖 ~11 minutes 📅 September 28, 2026 📝 Published: September 28, 2026 🩺 Medically Reviewed: September 28, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a board-certified […]

FibroScan Results: kPa, CAP Scores and Next Steps

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Liver Health Lab Interpretation 2026 Update Patient-Friendly FibroScan results estimate liver stiffness in kPa and liver fat with a CAP score; they do not diagnose fibrosis or cirrhosis alone. As of September 28, 2026, the most useful report combines the number, scan quality, fasting status, liver blood tests, and the reason you were scanned. 📖 ~11 minutes 📅 September 28, 2026 📝 Published: September 28, 2026 🩺 Medically Reviewed: September 28, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, […]

Immunofixation Electrophoresis Results: Bands and Next Steps

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Hematology Lab Interpretation 2026 Update Patient-Friendly Immunofixation clarifies whether an abnormal SPEP pattern represents one clone of antibodies or a broad immune response. The band type, its persistence, and your kidney, blood-count, calcium, and symptom profile determine what happens next. 📖 ~11 minutes 📅 September 28, 2026 📝 Published: September 28, 2026 🩺 Medically Reviewed: September 28, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein […]

High PDW Blood Test: Platelet Size Variation Explained

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Hematology Lab Interpretation 2026 Update Patient-Friendly A raised platelet distribution width usually reflects mixed platelet sizes, not a diagnosis. The useful question is whether the platelet count, MPV, symptoms, and test trend point toward increased platelet turnover or simply normal variation. 📖 ~11 minutes 📅 September 27, 2026 📝 Published: September 27, 2026 🩺 Medically Reviewed: September 27, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas […]

High Hemolysis Index: Which Blood Results Can Mislead

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Laboratory Quality Lab Interpretation 2026 Update Patient-Friendly A high hemolysis index usually describes damage to cells after collection, not a diagnosis in you. The useful question is which reported results remain trustworthy and which need repeating. 📖 ~11 minutes 📅 September 27, 2026 📝 Published: September 27, 2026 🩺 Medically Reviewed: September 27, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a board-certified clinical […]

ELF Test for Liver Fibrosis: Scores and Next Steps

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Liver Health Lab Interpretation 2026 Update Patient-Friendly The Enhanced Liver Fibrosis test estimates the likelihood of significant liver scarring from three blood markers. Its value lies in how it changes the next clinical decision—not in treating one score as a diagnosis. 📖 ~11 minutes 📅 September 27, 2026 📝 Published: September 27, 2026 🩺 Medically Reviewed: September 27, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas […]

HLA-B27 Positive: Back Pain, Uveitis and Next Steps

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Rheumatology Lab Interpretation 2026 Update Patient-Friendly An HLA-B27 positive result identifies an inherited immune-system marker, not a diagnosis. It matters most when it accompanies back pain beginning before age 45, recurrent sudden-onset eye inflammation, psoriasis, bowel inflammation, or a close family history of spondyloarthritis. 📖 ~11 minutes 📅 September 27, 2026 📝 Published: September 27, 2026 🩺 Medically Reviewed: September 27, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti […]