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.

Hepatitis Blood Test Results: Antibodies vs Infection

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Viral Hepatitis Lab Interpretation 2026 Update Patient-Friendly A screening result can mean you met the virus once, responded to a vaccine, or still carry a current infection. The trick is knowing which marker answers which question. 📖 ~11 minutes 📅 April 22, 2026 📝 Published: April 22, 2026 🩺 Medically Reviewed: April 22, 2026 ✅ […]

Prediabetes Blood Test: Which Borderline Results Matter?

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Prediabetes Lab Interpretation 2026 Update Patient-Friendly A fasting glucose of 101 mg/dL and an HbA1c of 5.6% do not mean the same thing as a 2-hour OGTT of 167 mg/dL. This is how I decide which borderline sugar pattern needs follow-up now. 📖 ~11 minutes 📅 April 22, 2026 📝 Published: April 22, 2026 🩺 […]

Normal Range for Cholesterol: Total, LDL, HDL Explained

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Cholesterol Lab Interpretation 2026 Update Patient-Friendly Most adults should aim for total cholesterol below 200 mg/dL, but the real story sits in LDL, HDL, triglycerides, and overall risk. A routine lipid panel can look reassuring on paper and still miss something clinically meaningful. 📖 ~11 minutes 📅 April 22, 2026 📝 Published: April 22, 2026 […]

What Does Low Sodium Mean on a Blood Test? Key Causes

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Electrolytes Lab Interpretation 2026 Update Patient-Friendly A sodium flag on routine labs usually points to water balance, not just salt intake. This patient-first guide explains the real low sodium blood test meaning, common hyponatremia blood test causes, and the follow-up questions that change care. 📖 ~11 minutes 📅 April 22, 2026 📝 Published: April 22, […]

Low Vitamin D on a Blood Test: Meaning, Causes, Next Steps

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Vitamin D Lab Interpretation 2026 Update Patient-Friendly A low result often reflects sunlight, body weight, medications, or absorption—not diet alone. Here is how to tell routine deficiency from a clue to gut, liver, or kidney issues. 📖 ~10-12 minutes 📅 April 22, 2026 📝 Published: April 22, 2026 🩺 Medically Reviewed: April 22, 2026 ✅ […]

Cortisol Blood Test Timing: Why Morning and Evening Differ

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Endocrinology Lab Interpretation 2026 Update Patient-Friendly One cortisol number can look low, normal, or high simply because the sample was collected at the wrong time of day. We explain when a morning cortisol test is useful, when evening testing matters more, and when a single value should not drive decisions. 📖 ~10-12 minutes 📅 April […]

Low Neutrophils on a Blood Test: Causes and Next Steps

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Hematology Lab Interpretation 2026 Update Patient-Friendly Most low neutrophil results are temporary. The number that changes management is the absolute neutrophil count, not just the percentage shown on the CBC. 📖 ~11 minutes 📅 April 22, 2026 📝 Published: April 22, 2026 🩺 Medically Reviewed: April 22, 2026 ✅ Evidence-Based This guide was written under […]

High Platelet Count: Causes, Cancer Risk, Next Steps

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Hematology Lab Interpretation 2026 Update Patient-Friendly Most elevated platelet results are reactive, not dangerous. The real question is whether the number fits iron deficiency, inflammation, recovery from illness, or a bone marrow disorder. 📖 ~11 minutes 📅 April 21, 2026 📝 Published: April 21, 2026 🩺 Medically Reviewed: April 21, 2026 ✅ Evidence-Based This guide […]

BMP Blood Test: Why ER Doctors Order It First and Fast

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Emergency Labs Lab Interpretation 2026 Update Patient-Friendly ER doctors order a BMP blood test early because eight fast numbers can reveal dehydration, kidney stress, dangerous electrolyte shifts, or glucose problems within minutes. In real practice, that can change IV fluids, medications, CT contrast decisions, monitoring, and whether someone goes home or stays. 📖 ~11 minutes […]

High Creatinine Levels: Causes, Clues, and Next Steps

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Kidney Health Lab Interpretation 2026 Update Patient-Friendly A mildly high creatinine often comes from dehydration, recent hard exercise, larger muscle mass, cooked meat, creatine, or medications that change tubular secretion—not always kidney disease. The next step is to compare it with your baseline, eGFR, BUN, potassium, urine protein, and symptoms. 📖 ~10-12 minutes 📅 April […]