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.

Normal Range for Sodium: Hydration, Highs, and Urgent Lows

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Electrolytes Lab Interpretation 2026 Update Patient-Friendly Sodium is often treated like a salt test, but clinically it is mostly a water-balance clue. We interpret it through symptoms, glucose, kidney markers, and medications before deciding whether a result is routine, same-day, or urgent. 📖 ~11 minutes 📅 April 7, 2026 📝 Published: April 7, 2026 🩺 […]

What Does Low Potassium Mean? Causes, Symptoms, Next Steps

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Electrolytes Lab Interpretation 2026 Update Patient-Friendly Low potassium usually means your body is losing potassium through urine, vomiting, diarrhea, or certain medicines faster than you are replacing it. A result around 3.4 mmol/L is often mild; below 3.0 mmol/L, or any weakness, palpitations, or fainting, deserves prompt medical review. 📖 ~11 minutes 📅 April 7, […]

PTH Blood Test: High, Low, and Calcium Pattern Clues

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Endocrinology Lab Interpretation 2026 Update Patient-Friendly A single PTH number rarely answers the real question. The pattern with calcium, vitamin D, kidney function, phosphate, and urine calcium usually tells the story. 📖 ~11 minutes 📅 April 7, 2026 📝 Published: April 7, 2026 🩺 Medically Reviewed: April 7, 2026 ✅ Evidence-Based This guide was written […]

Blodprøve for prolaktin: høye verdier og hva du bør gjøre videre

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Endocrinology Lab Interpretation 2026 Update Patient-Friendly A single high prolactin result is often less dramatic than it looks. The real job is sorting out lab timing, stress, medications, thyroid patterns, and the smaller group of true pituitary causes. 📖 ~11 minutes 📅 April 6, 2026 📝 Published: April 6, 2026 🩺 Medically Reviewed: April 6, […]

High Monocytes in Blood Test: Causes and What Next

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Hematology Lab Interpretation 2026 Update Patient-Friendly Most monocytosis is reactive and short-lived. The useful question is whether the rise fits recent recovery, chronic inflammation, or a pattern that deserves hematology review. 📖 ~11 minutes 📅 April 6, 2026 📝 Published: April 6, 2026 🩺 Medically Reviewed: April 6, 2026 ✅ Evidence-Based This guide was written […]

Hematokritnivåer: Slik leser du lave og høye resultater

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Hematology Lab Interpretation 2026 Update Patient-Friendly Hematocrit measures the percentage of your blood made up by red cells. Low hematocrit usually points to anemia, dilution, pregnancy, or reduced kidney-driven red-cell production; high hematocrit more often reflects dehydration, altitude, smoking, sleep apnea, testosterone therapy, or—less commonly—a marrow disorder. 📖 ~11 minutes 📅 April 6, 2026 📝 […]

CMP-blodprøve vs BMP: forskjeller, markører og bruksområder

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Metabolic Panels Lab Interpretation 2026 Update Patient-Friendly BMP answers the kidney-electrolyte question quickly. CMP asks the same question and adds liver plus protein clues that often change what I do next. 📖 ~11 minutes 📅 April 6, 2026 📝 Published: April 6, 2026 🩺 Medically Reviewed: April 6, 2026 ✅ Evidence-Based This guide was written […]

Liver Function Test: Reading ALT, AST, ALP and GGT

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Liver Health Lab Interpretation 2026 Update Patient-Friendly Most people are told one enzyme is high. Real interpretation starts when you compare the whole panel, the printed upper limits, symptoms, and trend over time. 📖 ~10-12 minutes 📅 April 6, 2026 📝 Published: April 6, 2026 🩺 Medically Reviewed: April 6, 2026 ✅ Evidence-Based This guide […]

Fasting Blood Sugar Range: Why Morning Levels Rise

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Glucose Control Lab Interpretation 2026 Update Patient-Friendly A fasting glucose of 102-112 mg/dL with an HbA1c of 5.4%-5.6% is a pattern we see often. As of April 6, 2026, it usually points to timing, dawn hormones, sleep, stress, or early insulin resistance rather than a mysterious lab error. 📖 ~11 minutes 📅 April 6, 2026 […]

TSH Normal Range in Children: Age Chart and Red Flags

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Pediatric Thyroid Lab Interpretation 2026 Update Patient-Friendly A thyroid result that looks high on an adult lab sheet may be normal for a toddler. This pediatric guide shows where the age cutoffs shift, what a full thyroid panel means, and which patterns truly need fast follow-up. 📖 ~11 minutes 📅 April 5, 2026 📝 Published: […]