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 Sodium Causes: Dehydration, DI and Medication Clues

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Electrolytes Lab Interpretation 2026 Update Patient-Friendly A high sodium result is usually a water-balance problem, not someone eating one salty meal. The clinical trick is deciding whether water loss is simple, kidney-driven, medication-related, or urgent. 📖 ~11 minutes 📅 June 26, 2026 📝 Published: June 26, 2026 🩺 Medically Reviewed: June 26, 2026 ✅ Evidence-Based […]

Slow Wound Healing: Blood Tests Doctors Often Check

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Wound Healing Lab Interpretation 2026 Update Patient-Friendly When a cut, ulcer, or surgical incision refuses to close, doctors look for patterns rather than one magic result. The useful clues usually sit across glucose control, oxygen-carrying capacity, protein status, inflammation, and immune risk. 📖 ~11 minutes 📅 June 26, 2026 📝 Published: June 26, 2026 🩺 […]

Blood Test for Diarrhea: Dehydration and Infection Clues

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Diarrhea Labs Lab Interpretation 2026 Update Patient-Friendly Most short episodes of diarrhea do not need lab work. Blood tests become useful when the story suggests fluid loss, invasive infection, inflammatory bowel disease, medication injury, kidney strain or sepsis. 📖 ~11 minutes 📅 June 26, 2026 📝 Published: June 26, 2026 🩺 Medically Reviewed: June 26, […]

Slightly Elevated Vitamin D Meaning: Safe or Toxic?

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Vitamin D Lab Interpretation 2026 Update Patient-Friendly A mildly high 25-OH vitamin D result is usually safe if calcium is normal, symptoms are absent, and supplement doses are modest. Toxicity is mainly a calcium problem, not a number problem. 📖 ~11 minutes 📅 June 26, 2026 📝 Published: June 26, 2026 🩺 Medically Reviewed: June […]

Borderline LDL Cholesterol Meaning: Worry or Recheck?

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LDL Cholesterol Lab Interpretation 2026 Update Patient-Friendly A borderline LDL result is not a diagnosis by itself. The decision to worry, recheck, or treat depends on total heart risk, repeatability, non-HDL cholesterol, ApoB, triglycerides, and personal history. 📖 ~12 minutes 📅 June 26, 2026 📝 Published: June 26, 2026 🩺 Medically Reviewed: June 26, 2026 […]

FIT vs FOBT: Which Stool Test Finds Cancer Better?

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Colon Screening Stool Test Accuracy 2026 Update Patient-Friendly FIT usually beats old guaiac FOBT for practical home screening because it is more specific for human lower-gut bleeding and usually needs only one sample. The bigger issue is what you do after the result. 📖 ~11 minutes 📅 June 25, 2026 📝 Published: June 25, 2026 […]

Free T4 vs Total T4: Which Result Guides Care?

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Thyroid Testing Lab Interpretation 2026 Update Patient-Friendly Free T4 is usually the more clinically useful thyroxine result, but total T4 still matters when binding proteins change. The disagreement is often not a lab error — it is physiology showing up on paper. 📖 ~11 minutes 📅 June 25, 2026 📝 Published: June 25, 2026 🩺 […]

What Does Within Normal Limits Mean on Lab Results?

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WNL Meaning Lab Interpretation 2026 Update Patient-Friendly A WNL flag usually means your result sits inside the lab’s expected reference interval. The useful question is whether that result fits your symptoms, risk profile, and previous results. 📖 ~11 minutes 📅 June 25, 2026 📝 Published: June 25, 2026 🩺 Medically Reviewed: June 25, 2026 ✅ […]

What Does U&E Stand For? UK Kidney Results Guide

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UK Blood Tests Kidney Function 2026 Update Patient-Friendly U&E is one of the commonest blood test abbreviations on NHS forms, but the results can look cryptic. Here is how UK clinicians read urea, salts and kidney function together. 📖 ~11 minutes 📅 June 25, 2026 📝 Published: June 25, 2026 🩺 Medically Reviewed: June 25, […]

Beta hCG Levels in Pregnancy: Week-by-Week Guide

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Pregnancy Testing Lab Interpretation 2026 Update Patient-Friendly Quantitative beta hCG is best read as a trend, not a verdict. The same number can be reassuring, uncertain, or concerning depending on dates, symptoms, and ultrasound findings. 📖 ~11 minutes 📅 June 25, 2026 📝 Published: June 25, 2026 🩺 Medically Reviewed: June 25, 2026 ✅ Evidence-Based […]