Latest

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 73

Learn what the osteocalcin blood test measures, common adult reference ranges, why high or low results happen, and which related tests help explain bone turnover.

Osteocalcin Blood Test Normal Range: Reference Values and Meaning

Learn the normal phosphorus blood test range, what high or low phosphate can mean, and how doctors interpret results with calcium, kidney function, PTH, and vitamin D.

Phosphorus Blood Test Normal Range: Reference Values and Meaning

Learn what the PIVKA-II test measures, why levels rise with vitamin K deficiency, cholestasis, warfarin, liver disease, and liver cancer, and how results relate to PT, INR, and bleeding risk.

PIVKA-II Test: Vitamin K Deficiency, Liver Disease, Bleeding Risk, and Results

Understand the RBC folate test, normal ranges, low and high results, folate deficiency causes, B12 concerns, preparation tips, and follow-up tests.

Red Blood Cell (RBC) Folate Test: Low RBC Folate, Normal Range,...

Learn what the RBC magnesium test measures, common normal ranges, causes of low or high RBC magnesium, deficiency symptoms, serum vs RBC testing, and follow-up steps.

Red Blood Cell (RBC) Magnesium Test: Low RBC Magnesium, Normal Range,...

Learn what the reticulocyte hemoglobin content test measures, what low RET-He or CHr means, how it relates to iron deficiency and anemia, and which follow-up tests help explain results.

Reticulocyte Hemoglobin Content (CHr or RET-He) Test: Low RET-He, Iron Deficiency,...

Understand selenium blood test normal ranges, low and high selenium results, deficiency and toxicity causes, thyroid links, preparation, and safe follow-up steps.

Selenium Blood Test Normal Range: Reference Values and Meaning

Serum folate reflects recent folate intake, while RBC folate reflects longer-term folate status. Learn how the tests differ, what low or high results can mean, and how to interpret folate results with B12, CBC, MMA, homocysteine, diet, medications, and pregnancy needs.

Serum Folate vs RBC Folate: What Is the Difference?

Serum iron normal range, low and high result meanings, iron panel context, preparation tips, and when abnormal iron levels need medical follow-up.

Serum Iron Test Normal Range: Reference Values and Meaning

Serum magnesium is usually the first and most useful magnesium test, while RBC magnesium can add context in selected chronic cases. Learn how to interpret both tests, common result patterns, and when follow-up matters.

Serum Magnesium vs RBC Magnesium: Which Magnesium Test Matters More?

Understand the soluble transferrin receptor test, what high sTfR can mean, how it helps detect iron deficiency, and how results compare with ferritin, TSAT, and CBC findings.

Soluble Transferrin Receptor (sTfR) Test: High sTfR, Iron Deficiency, Anemia, and...

TIBC and transferrin both help interpret iron panels, but they measure different things. Learn how high or low results relate to iron deficiency, inflammation, liver disease, and iron overload.

TIBC vs Transferrin: What Is the Difference in an Iron Panel?

Learn the normal range for the TIBC blood test, what high and low total iron-binding capacity mean, and how TIBC fits with ferritin, serum iron, and transferrin saturation.

Total Iron-Binding Capacity (TIBC) Test Normal Range: Reference Values and Meaning

Learn the normal transferrin blood test range, what high and low transferrin mean, and how transferrin fits with ferritin, TIBC, serum iron, and TSAT.

Transferrin Blood Test Normal Range: Reference Values and Meaning

Learn the normal transferrin saturation range, what low or high TSAT means, how it is calculated, and how TSAT fits with ferritin, serum iron, TIBC, and anemia testing.

Transferrin Saturation (TSAT) Normal Range: Reference Values and Meaning

Learn what the UIBC blood test measures, the common normal range, and how high or low UIBC results relate to iron deficiency, iron overload, ferritin, TIBC, and transferrin saturation.

Unsaturated Iron-Binding Capacity (UIBC) Test Normal Range: Reference Values and Meaning

Learn what a vitamin A retinol blood test measures, common normal ranges, low and high result meanings, deficiency cutoffs, toxicity concerns, preparation tips, and follow-up tests.

Vitamin A (Retinol) Test Normal Range: Reference Values and Meaning

Learn what a vitamin and mineral blood test panel measures, how to interpret low or high nutrient levels, which markers matter, and when follow-up testing is needed.

Vitamin and Mineral Blood Test Panel: Deficiency, Toxicity, Nutrient Levels, and...

Learn what a vitamin B1 thiamine test measures, common normal ranges, low and high result meanings, deficiency symptoms, causes, preparation, and follow-up steps.

Vitamin B1 (Thiamine) Test: Low Thiamine, Deficiency, Normal Range, and Results

Learn what a vitamin B2 riboflavin test measures, normal ranges for plasma, whole blood, and EGRAC, causes of low riboflavin, deficiency symptoms, and follow-up testing.

Vitamin B2 (Riboflavin) Test: Low Riboflavin, Deficiency, Normal Range, and Results

1...727374...93 Page 73 of 93