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.

High Total Protein: Dehydration, MGUS or Inflammation?

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Protein Gap Lab Interpretation 2026 Update Patient-Friendly High total protein is most often a temporary concentration effect from dehydration, especially when albumin rises too. A persistent elevation driven by globulins, a protein gap above about 4.0 g/dL, or anemia, kidney changes, bone pain, or recurrent infections deserves clinician review and often serum protein electrophoresis. 📖 […]

High Prolactin Symptoms: Headaches, Vision and Periods

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Hormone Health Lab Interpretation 2026 Update Patient-Friendly A symptom-first way to separate common medication or pregnancy-related elevations from the less common pituitary patterns that need faster assessment. As of July 17, 2026, new headache plus visual change remains the combination I take most seriously. 📖 ~11 minutes 📅 July 17, 2026 📝 Published: July 17, […]

High Creatine Kinase Symptoms: When CK Is Dangerous

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Creatine Kinase Lab Interpretation 2026 Update Patient-Friendly A patient-focused guide to elevated CK after exercise, injury, statins, heat illness or rhabdomyolysis — with practical recheck timing and ER red flags. 📖 ~11 minutes 📅 July 17, 2026 📝 Published: July 17, 2026 🩺 Medically Reviewed: July 17, 2026 ✅ Evidence-Based This guide was written under […]

Is High NT-proBNP Dangerous? Causes, Symptoms, Cutoffs

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Cardiac Biomarkers Lab Interpretation 2026 Update Patient-Friendly A high NT-proBNP result is not automatically heart failure, but it is a serious signal when symptoms, age, kidney function and rhythm are read together. 📖 ~11 minutes 📅 July 17, 2026 📝 Published: July 17, 2026 🩺 Medically Reviewed: July 17, 2026 ✅ Evidence-Based This guide was […]

High Triglycerides Symptoms: Silent Risk or Pancreatitis

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Lipids Lab Interpretation 2026 Update Patient-Friendly High triglycerides are often quiet until the number is extreme. The clinical trick is knowing when a lipid result is routine follow-up and when it is a pancreatitis-risk result. 📖 ~11 minutes 📅 July 16, 2026 📝 Published: July 16, 2026 🩺 Medically Reviewed: July 16, 2026 ✅ Evidence-Based […]

High ESR Causes: Infection, Autoimmune, Cancer Clues

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Inflammation Marker Lab Interpretation 2026 Update Patient-Friendly A high ESR usually means inflammation is present, but it cannot tell you the source by itself. The result becomes clinically useful when paired with CRP, CBC, albumin, globulin, ferritin, urinalysis and symptom timing. 📖 ~11 minutes 📅 July 16, 2026 📝 Published: July 16, 2026 🩺 Medically […]

High Vitamin B12 Causes: Supplements or Lab Clues

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Vitamin B12 Lab Interpretation 2026 Update Patient-Friendly A high B12 result is not automatically vitamin toxicity. The clinical question is whether the number fits supplements, organ stress, abnormal binding proteins, or a misleading assay. 📖 ~11 minutes 📅 July 16, 2026 📝 Published: July 16, 2026 🩺 Medically Reviewed: July 16, 2026 ✅ Evidence-Based This […]

High Vitamin D Symptoms: Toxicity Signs and Cutoffs

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Vitamin D Lab Interpretation 2026 Update Patient-Friendly True vitamin D toxicity is usually a calcium problem, not just a high 25-OH vitamin D number. The urgency changes when nausea, thirst, confusion, kidney changes, dose history, and repeat testing line up. 📖 ~11 minutes 📅 July 16, 2026 📝 Published: July 16, 2026 🩺 Medically Reviewed: […]

High Magnesium Causes: Kidney, Laxative and Dose Clues

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Electrolytes Lab Interpretation 2026 Update Patient-Friendly A raised magnesium result is rarely about food alone. The pattern usually comes from intake plus clearance: supplements, laxatives, antacids, kidney function, and sometimes hospital medication. 📖 ~11 minutes 📅 July 16, 2026 📝 Published: July 16, 2026 🩺 Medically Reviewed: July 16, 2026 ✅ Evidence-Based This guide was […]

Low Sodium Symptoms: Mild Signs vs Emergency Clues

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Electrolytes Lab Interpretation 2026 Update Patient-Friendly Hyponatremia is not judged by the sodium number alone. The same result can be quiet or life-threatening depending on how fast it falls and what the brain is doing. 📖 ~11 minutes 📅 July 15, 2026 📝 Published: July 15, 2026 🩺 Medically Reviewed: July 15, 2026 ✅ Evidence-Based […]