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Understand ALK fusion testing in lung cancer, including what a positive or negative result means, tissue and ctDNA methods, limitations, and treatment relevance.

ALK Fusion Test for Lung Cancer: Gene Fusion, Positive Result, and Molecular Meaning

Understand BRAF V600E testing in lung cancer, including what a positive or negative result means, tissue and ctDNA methods, limitations, and treatment relevance.

BRAF V600E Test for Lung Cancer: Mutation Status, Positive Result, and Molecular Meaning

Learn how the carcinoembryonic antigen (CEA) test is used in lung cancer, what high levels can mean, common non-cancer causes, reference ranges, and why serial trends matter.

CEA Test for Lung Cancer: Tumor Marker Monitoring, High Levels, and Result Meaning

Learn how the cytokeratin 19 fragment 21-1 (CYFRA 21-1) test is used in lung cancer, what high levels can mean, common non-cancer causes, reference ranges, and why serial trends matter.

CYFRA 21-1 Test for Lung Cancer: Tumor Marker Levels and Disease Monitoring

Understand EGFR exon 20 insertion testing in lung cancer, including what a positive or negative result means, tissue and ctDNA methods, limitations, and treatment relevance.

EGFR Exon 20 Insertion Test: Lung Cancer Mutation Status and Molecular Meaning

Understand EGFR mutation testing in lung cancer, including what a positive or negative result means, tissue and ctDNA methods, limitations, and treatment relevance.

EGFR Mutation Test for Lung Cancer: Exon 19, L858R, T790M, Mutation Status, and...

Diagnostics

Home Diagnostics Page 70

High ferritin with normal iron often points to inflammation, liver stress, metabolic dysfunction, or iron overload. Learn how TSAT and follow-up tests clarify results.

High Ferritin and Normal Iron: Inflammation, Liver, and Iron Overload Patterns

Learn what a high ferritin blood test means, including common causes, inflammation patterns, iron overload, hemochromatosis, related tests, and when follow-up matters.

High Ferritin Blood Test: Causes, Inflammation, Iron Overload, and Meaning

Learn what a high folate blood test means, including common supplement causes, folic acid intake, B12 masking risk, follow-up tests, and when symptoms need medical review.

High Folate Blood Test: Causes, Supplements, B12 Masking, and Meaning

Learn what a high hepcidin blood test means, including inflammation, iron restriction, anemia patterns, ferritin and iron panel results, causes, and follow-up steps.

High Hepcidin Blood Test: Causes, Inflammation, Iron Restriction, and Meaning

Learn what a high iodine blood test means, common causes such as kelp, contrast dye, and amiodarone, thyroid risks, ranges, follow-up tests, and safe next steps.

High Iodine Blood Test: Causes, Excess Intake, Thyroid Risk, and Meaning

Learn what a high magnesium blood test means, including normal ranges, kidney disease risk, magnesium toxicity symptoms, common causes, treatment, and when to seek urgent care.

High Magnesium Blood Test: Causes, Kidney Disease, Toxicity, and Meaning

High manganese blood test results can point to excess exposure, liver clearance problems, parenteral nutrition, supplements, or contamination. Learn ranges, symptoms, toxicity risks, and follow-up steps.

High Manganese Blood Test: Causes, Exposure, Toxicity, and Meaning

Learn what a high molybdenum blood test means, including normal ranges, supplement causes, metal exposure, implant wear, toxicity symptoms, and follow-up tests.

High Molybdenum Blood Test: Causes, Excess Intake, and Meaning

Learn what a high osteocalcin blood test means, including common causes, bone turnover patterns, normal ranges, test preparation, follow-up labs, and when results need medical review.

High Osteocalcin Blood Test: Causes, Bone Turnover, and Meaning

Learn what a high phosphorus blood test means, including adult ranges, kidney disease causes, calcium and PTH links, bone health risks, symptoms, follow-up tests, and treatment options.

High Phosphorus Blood Test: Causes, Kidney Disease, Bone Health, and Meaning

Learn what a high selenium blood test means, including common causes, selenium toxicity symptoms, excess intake sources, blood ranges, follow-up testing, and when to seek care.

High Selenium Blood Test: Causes, Toxicity, Excess Intake, and Meaning

High serum iron can come from supplements, timing, liver disease, hemolysis, transfusions, or iron overload. Learn how to interpret serum iron with ferritin, TIBC, and transferrin saturation.

High Serum Iron Test: Causes, Iron Overload, Liver Disease, and Meaning

High TIBC usually points to low iron stores, iron deficiency anemia, pregnancy-related transferrin changes, or estrogen effects. Learn how to interpret TIBC with ferritin, serum iron, transferrin saturation, symptoms, causes, and follow-up testing.

High Total Iron-Binding Capacity (TIBC) Test: Causes, Iron Deficiency, Pregnancy, and...

Learn what a high transferrin blood test means, including iron deficiency patterns, pregnancy effects, symptoms, follow-up tests, and how transferrin fits into an iron panel.

High Transferrin Blood Test: Causes, Iron Deficiency, Pregnancy, and Meaning

Learn what a high transferrin saturation test means, including TSAT ranges, iron overload, hemochromatosis, ferritin patterns, common causes, repeat testing, and follow-up care.

High Transferrin Saturation (TSAT) Test: Causes, Iron Overload, Hemochromatosis, and Meaning

High UIBC usually means unused iron-binding capacity is elevated, often from iron deficiency. Learn causes, iron panel patterns, symptoms, follow-up tests, and next steps.

High Unsaturated Iron-Binding Capacity (UIBC) Test: Causes, Iron Deficiency, and Meaning

Learn what a high vitamin A retinol test means, including normal and toxic ranges, supplement and medication causes, toxicity symptoms, pregnancy risks, and follow-up tests.

High Vitamin A (Retinol) Test: Causes, Toxicity, Symptoms, and Meaning

High vitamin B6 PLP results are usually caused by supplements and can raise neuropathy risk. Learn ranges, toxicity symptoms, causes, preparation, and next steps.

High Vitamin B6 (Pyridoxal-5-Phosphate/PLP) Test: Causes, Toxicity, Neuropathy, and Meaning

High vitamin B12 blood test results can come from supplements, injections, liver disease, kidney disease, inflammation, or blood disorders. Learn what high B12 means and what to check next.

High Vitamin B12 Blood Test: Causes, Supplements, Liver Disease, and Meaning

High vitamin E blood test results usually come from supplements. Learn what high alpha-tocopherol means, normal ranges, bleeding risk, causes, and follow-up steps.

High Vitamin E (Alpha-Tocopherol) Test: Causes, Excess Intake, Bleeding Risk, and...

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