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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 74

Learn how methylation, chromosomal microarray, maternal UPD testing, and imprinting-center analysis diagnose Prader-Willi syndrome and clarify recurrence risk.

Prader-Willi Syndrome Genetic Test: Methylation, Deletion, UPD, and Results

Learn what psychiatric pharmacogenetic tests can reveal about CYP2D6, CYP2C19, and antidepressant metabolism, why color bins have limits, and how to use results safely.

Psychiatric Pharmacogenetic Test: Depression, Anxiety, Medication Response, and Results

Learn how MECP2 sequencing, deletion testing, mosaicism, and result categories support a Rett syndrome diagnosis, family counseling, and care planning.

Rett Syndrome Genetic Test: MECP2 Gene Mutations and Results

Understand SMA genetic testing, including SMN1 and SMN2 copy number, silent-carrier risk, newborn screening, diagnostic results, and family next steps.

Spinal Muscular Atrophy (SMA) Genetic Test: SMN1, SMN2 Copy Number, and...

Learn how spinocerebellar ataxia CAG repeat testing works, what repeat ranges mean, why assay methods matter, and how results guide care and families.

Spinocerebellar Ataxia Genetic Test: CAG Repeat Expansions and Results

Learn how cell-free DNA testing is used for prenatal screening, cancer mutation analysis, and transplant monitoring, including result meanings, limitations, and follow-up.

Cell-Free DNA (cfDNA) Test: Prenatal Screening, Cancer, and Transplant Results

Understand how chromosomal microarray detects deletions and duplications, what pathogenic and uncertain CNV results mean, what CMA misses, and when follow-up testing is needed.

Chromosomal Microarray Test: Copy Number Variants, Deletions, and Duplications

Learn how copy number variant tests detect deletions and duplications, how methods differ, what pathogenic and uncertain CNV results mean, and which follow-up tests may be needed.

Copy Number Variant (CNV) Test: Deletions, Duplications, and Results

Learn how deletion/duplication genetic testing finds missing or extra exons, how MLPA and NGS dosage analysis work, and what positive, negative, and uncertain results mean.

Deletion/Duplication Genetic Test: Copy Number Variants and Results

Learn how digital PCR detects rare mutations and measures copy number, including partition counting, detection limits, result units, false signals, and follow-up.

Digital PCR (dPCR) Test: Low-Level Mutations, Copy Number, and Results

Learn how FISH testing uses fluorescent probes to detect gene deletions, duplications, amplifications, and fusions, including signal patterns, cutoffs, and limitations.

Fluorescence In Situ Hybridization (FISH) Test: Gene Deletions, Duplications, Fusions, and...

Gene fusion testing detects cancer-related rearrangements that can clarify diagnosis and guide targeted therapy; learn how RNA, DNA, FISH, PCR, and results differ.

Gene Fusion Test: Cancer Rearrangements, Fusion Genes, and Results

Karyotype testing counts chromosomes and detects large structural changes; understand balanced rearrangements, mosaicism, notation, limitations, and next steps.

Karyotype Test: Chromosome Number, Structure, and Results

Liquid biopsy testing analyzes circulating tumor DNA for cancer mutations, treatment targets, resistance, and residual disease; learn how positive and negative results differ.

Liquid Biopsy Test: Circulating Tumor DNA, Cancer Mutations, and Results

Loss of heterozygosity testing identifies locus-specific or genome-wide allelic loss in tumors; learn about copy-neutral LOH, HRD scores, limitations, and results.

Loss of Heterozygosity (LOH) Test: Tumor Genetics and Results

Methylation genetic testing detects imprinting abnormalities, constitutional episignatures, and cancer profiles; learn how methods, mosaicism, and result types differ.

Methylation Genetic Test: Imprinting Disorders, Cancer, and Results

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