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Learn how antibiotic-resistant UTI testing identifies ESBL, CRE, resistance genes, and antibiotic susceptibility, and how culture results guide treatment and follow-up.

Antibiotic-Resistant UTI Test: ESBL, CRE, Resistance Markers, and Culture Meaning

Learn what asymptomatic bacteriuria means, how a positive urine culture without UTI symptoms is interpreted, and when screening, treatment, or follow-up matters.

Asymptomatic Bacteriuria Test: Positive Culture Without Symptoms and When It Matters

Learn how bacteria in urine are interpreted using urinalysis, culture, colony count, symptoms, and sample quality, including when contamination or follow-up testing matters.

Bacteria in Urine Test: UTI, Contamination, Colony Count, and Culture Follow-Up

Learn how a catheter urine culture helps diagnose catheter-associated UTI, how samples are collected, and what colony counts, pyuria, resistance, and positive results mean.

Catheter Urine Culture Test: Catheter-Associated UTI and Culture Meaning

Learn how a chlamydia and gonorrhea urine NAAT works, how to collect first-catch urine, what positive or negative results mean, and when follow-up testing is needed.

Chlamydia and Gonorrhea Urine NAAT Test: STI Screening, Positive Result, and Meaning

Learn how to collect a clean-catch urine culture, reduce contamination, handle the sample correctly, and understand mixed flora, colony counts, repeat testing, and accurate results.

Clean-Catch Urine Culture Test: Sample Collection, Contamination, and Accurate Results

Diagnostics

Home Diagnostics Page 75

Microsatellite instability testing evaluates mismatch repair in tumors for treatment and Lynch syndrome screening; learn about MSI-high, MSS, IHC, and follow-up.

Microsatellite Instability (MSI) Test: DNA Repair, Cancer Risk, and Results

Mitochondrial DNA sequencing detects mtDNA variants and heteroplasmy; learn how tissue choice, maternal inheritance, deletions, VUS findings, and negative results affect interpretation.

Mitochondrial DNA Sequencing Test: mtDNA Mutations and Results

Multigene panel testing analyzes inherited disease and cancer genes together; learn how panel selection, coverage, pathogenic variants, VUS findings, and negative results are interpreted.

Multigene Panel Test: Inherited Disease Genes, Cancer Genes, and Results

MLPA testing detects targeted gene deletions and duplications; learn how the assay works, how results are interpreted, why findings need confirmation, and what a negative result means.

Multiplex Ligation-Dependent Probe Amplification (MLPA) Test: Gene Deletions, Duplications, and Results

Understand how next-generation sequencing tests analyze gene panels, exomes, and genomes, what pathogenic, negative, and VUS results mean, and where NGS can miss variants.

Next-Generation Sequencing (NGS) Test: Gene Panels, Variants, and Results

Learn how PCR tests amplify DNA or RNA, what positive, negative, Ct, and invalid results mean, and why sample quality, timing, and assay design affect accuracy.

Polymerase Chain Reaction (PCR) Test: DNA Amplification, Variants, and Results

Understand how real-time PCR detects genetic variants and viral DNA, how Ct, Cq, and viral-load values are interpreted, and why assay design and sample quality affect results.

Real-Time PCR (qPCR) Test: Genetic Variants, Viral DNA, and Results

Learn how CAG, CGG, CTG, and other repeat expansion tests work, how repeat counts are classified, and what positive, intermediate, premutation, and negative results mean.

Repeat Expansion Test: CAG, CGG, CTG Repeats, and Results

Understand how RNA expression panels measure tumor gene activity, create recurrence or risk scores, and guide selected cancer-treatment decisions while accounting for sample quality and limitations.

RNA Expression Panel Test: Gene Activity, Cancer Risk, and Results

Sanger sequencing reads targeted gene regions to find or confirm small DNA variants. Understand chromatograms, result categories, limitations, and follow-up testing.

Sanger Sequencing Test: Single-Gene Variants and Results

Single-gene sequencing searches one selected gene for DNA variants. Learn when focused testing is useful, what results mean, what may be missed, and next steps.

Single-Gene Sequencing Test: DNA Variants, Diagnosis, and Results

SNP genotyping tests selected DNA markers for traits, medication response, and disease risk. Learn how genotypes and polygenic scores work, their limits, and follow-up.

SNP Genotyping Test: DNA Variants, Risk Markers, and Results

Structural variant tests detect inversions, translocations, and complex chromosome changes. Learn which methods find balanced and unbalanced events and what results mean.

Structural Variant Genetic Test: Inversions, Translocations, and Results

Targeted variant testing checks relatives for a known family mutation. Learn who should test, what positive and true-negative results mean, and how to follow up.

Targeted Variant Test: Known Mutation, Family Testing, and Results

Genetic variant classification labels findings as pathogenic, likely pathogenic, VUS, likely benign, or benign. Learn the evidence behind each category and reclassification.

Variant Classification in Genetic Testing: Pathogenic, Benign, VUS, and Results

Whole-exome sequencing examines most coding DNA for rare disease variants. Learn how WES works, what trio results mean, what it can miss, and when reanalysis helps.

Whole-Exome Sequencing (WES) Method: Coding DNA, Variants, and Results

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