Latest

Understand the 1-mg low-dose dexamethasone suppression test, the common cortisol cutoff of 1.8 mcg/dL, causes of nonsuppression, and the follow-up used for Cushing screening.

Low-Dose Dexamethasone Suppression Test: Cushing Syndrome Screening and Results

Learn how an 8–9 a.m. cortisol test screens for adrenal insufficiency, what low and intermediate results mean, how ACTH helps identify the cause, and when stimulation testing is needed.

Morning Cortisol Test: Low Levels, Adrenal Insufficiency, and Results

Learn how a pheochromocytoma and paraganglioma panel uses plasma or urine metanephrines, normetanephrine, catecholamines, and controlled collection to interpret abnormal results.

Pheochromocytoma and Paraganglioma Test Panel: Metanephrines, Normetanephrine, Catecholamines, and Results

Learn what plasma epinephrine, norepinephrine, and dopamine results mean, why collection posture matters, common causes of high values, and when metanephrine testing is preferred.

Plasma Catecholamines Test: Epinephrine, Norepinephrine, Dopamine, and Results

Learn how plasma free metanephrine and normetanephrine testing screens for pheochromocytoma and paraganglioma, why supine rest matters, and how high or borderline results are evaluated.

Plasma Free Metanephrines Test: Pheochromocytoma and Paraganglioma Screening, High Levels, and Results

Learn what a high plasma normetanephrine result means, why supine rest matters, common false-positive causes, when clonidine testing is used, and how PPGL evaluation proceeds.

Plasma Normetanephrine Test: High Levels, Pheochromocytoma Screening, and Results

Diagnostics

Home Diagnostics Page 12

Understand autosomal recessive genetic tests, carrier results, 25% pregnancy risk, partner testing, residual risk after a negative result, and reproductive options.

Autosomal Recessive Genetic Test: Carrier Risk and Results

Learn what carrier screening tests show, how positive and negative results affect genetic disease risk, why partner testing matters, and what options follow an at-risk result.

Carrier Screening Test: Genetic Disease Risk, Results, and What It Means

Learn what a chromosome analysis and karyotype can detect, how abnormal, balanced, mosaic, and normal results are reported, and when microarray or FISH is needed.

Chromosome Analysis Test: Karyotype, Abnormal Chromosomes, Genetic Disorders, and Results

Learn what DNA tests can show, how sequencing and genotyping work, what positive, negative, and VUS results mean, and which limitations matter before acting.

DNA Test: What It Shows, How It Works, and Results Explained

Understand positive, negative, and uncertain genetic diagnostic test results, including variant classifications, test limits, family implications, and follow-up.

Genetic Diagnostic Test: Positive, Negative, Variant, and Results Explained

Learn how genetic panel tests analyze multiple genes, when panels are useful, how positive, negative, and uncertain results are interpreted, and what limits to consider.

Genetic Panel Test: Multiple Genes, Disease Risk, and Results

Understand genetic screening tests, disease-risk estimates, positive and negative results, false results, residual risk, and the follow-up needed for confirmation.

Genetic Screening Test: Disease Risk, Results, and What It Means

Explore genetic testing types, benefits, risks, accuracy, positive and negative results, uncertain variants, privacy issues, and how to choose appropriate follow-up.

Genetic Testing: Types, Benefits, Risks, Results, and What They Mean

Understand pathogenic, likely pathogenic, benign, likely benign, and VUS genetic test results, including classification evidence, family testing, and reclassification.

Genetic Variant Test: Pathogenic, Benign, VUS, and Results Explained

Learn how germline genetic testing identifies inherited variants, explains family risk, distinguishes positive and negative results, and guides cascade testing and follow-up.

Germline Genetic Testing: Inherited Mutations, Family Risk, and Results

Understand what an mtDNA test detects, how heteroplasmy and tissue choice affect results, what maternal inheritance means, and what to do after a positive, uncertain, or negative finding.

Mitochondrial DNA (mtDNA) Test: Mutations, Inheritance, and Results

Learn how newborn genetic screening works, which conditions it checks, what abnormal and normal results mean, and how repeat testing and urgent follow-up protect a baby’s health.

Newborn Genetic Screening Test: Conditions, Results, and Follow-Up

Understand how pharmacogenetic testing links gene variants to medication response, how metabolizer results are interpreted, which gene–drug pairs are actionable, and how to use results safely.

Pharmacogenetic Testing: Medication Response, Gene Variants, and Results

Learn how a polygenic risk score combines DNA markers, what percentiles and absolute risk mean, where PRS testing may help, and why ancestry, calibration, and clinical context matter.

Polygenic Risk Score (PRS) Test: Disease Risk, DNA Markers, and Results

Understand predictive genetic testing, including who may benefit, why an affected relative is usually tested first, what positive and negative results mean, and how results affect care and family.

Predictive Genetic Testing: Disease Risk, Results, and What It Means

Compare prenatal genetic screening with CVS and amniocentesis, understand cell-free DNA and diagnostic results, and learn how timing, test scope, false positives, and follow-up affect care.

Prenatal Genetic Testing: Screening, Diagnosis, Risk, and Results

Understand presymptomatic genetic testing, who may consider it, how positive and negative results affect inherited disease risk, and what happens next.

Presymptomatic Genetic Testing: Inherited Disease Risk and Results

Learn how single-gene genetic tests work, what pathogenic, negative, and VUS results mean, how they affect disease risk, and why test method matters.

Single-Gene Genetic Test: Mutation Results, Disease Risk, and Meaning

Learn how somatic genetic testing finds tumor mutations, guides cancer treatment, uses tissue or liquid biopsy, and distinguishes actionable from uncertain results.

Somatic Genetic Testing: Tumor Mutations, Cancer Treatment, and Results

Understand tumor genomic testing, how cancer mutations are matched to targeted therapy, what result categories mean, and why an actionable target may not work.

Tumor Genomic Testing: Cancer Mutations, Targeted Therapy, and Results

1...111213...57 Page 12 of 57