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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 34

Understand PALB2 mutation testing, hereditary breast, pancreatic, and ovarian cancer risks, DNA-repair biology, variant meaning, screening, and family testing.

PALB2 Mutation Test: Breast, Pancreatic, Ovarian Cancer Risk, DNA Repair, and...

Understand PDGFRA mutation testing in GIST, including exon 12, 14, and 18 variants, D842V meaning, imatinib resistance, avapritinib, and result interpretation.

PDGFRA Mutation Test: GIST, Mutation Status, Exon Variants, and Result Meaning

Understand PIK3CA mutation testing in breast cancer and solid tumors, including PI3K pathway biology, hotspot variants, liquid biopsy, and targeted treatment meaning.

PIK3CA Mutation Test: Breast Cancer, Solid Tumors, PI3K Pathway, and Mutation...

Understand PML-RARA fusion testing in acute promyelocytic leukemia, including urgent diagnosis, ATRA/ATO treatment, RT-PCR methods, molecular remission, and MRD monitoring.

PML-RARA Fusion Test: Acute Promyelocytic Leukemia, Gene Fusion, Diagnosis, and Monitoring

Understand what a PMS2 mutation test means, how it relates to Lynch syndrome and mismatch repair, why pseudogene interference matters, and what positive, VUS, or negative results may mean for cancer risk and follow-up.

PMS2 Mutation Test: Lynch Syndrome, Colon Cancer, Mismatch Repair, and Variant...

Learn how to interpret PTEN mutation testing, including germline PHTS results, tumor-only PTEN loss, PI3K-AKT-mTOR pathway effects, cancer risk, VUS findings, assay limits, and follow-up.

PTEN Mutation Test: Tumor Suppressor Gene, Cancer Risk, Pathway Alteration, and...

Learn what a RET fusion test detects in lung and thyroid cancer, how RNA and DNA testing differ, what positive or negative results mean, and how RET fusions can guide targeted therapy and resistance testing.

RET Fusion Test: Lung Cancer, Thyroid Cancer, Gene Fusion, and Result...

Understand RUNX1 mutation testing in AML and MDS, including modern WHO/ICC classification, ELN risk, prognosis, somatic versus germline findings, VAF limits, MRD context, and follow-up.

RUNX1 Mutation Test: AML, Myelodysplastic Syndrome, Mutation Status, and Prognosis

Learn how SMARCB1/INI1 loss testing is interpreted in rhabdoid tumors and sarcomas, what complete nuclear loss means, which tumors can share the pattern, when molecular or germline testing is needed, and how results may affect treatment.

SMARCB1/INI1 Loss Test: Rhabdoid Tumor, Sarcoma, IHC Loss, and Interpretation

Solid Tumor NGS Panel Test: Tumor Mutations, Gene Fusions, Copy Number...

Learn how SS18-SSX fusion testing confirms synovial sarcoma, how RNA NGS, FISH, RT-PCR, and fusion-specific IHC differ, what positive or negative results mean, and how the diagnosis affects modern treatment.

SS18-SSX Fusion Test: Synovial Sarcoma, Gene Fusion, and Molecular Diagnosis

Learn how TFE3 fusion testing classifies kidney and soft-tissue tumors, how IHC, FISH, and RNA NGS differ, what positive or negative results mean, and why the fusion partner and tumor context matter.

TFE3 Fusion Test: Kidney Cancer, Soft Tissue Tumor, Translocation Marker, and...

Understand what a TP53 mutation test means in AML and MDS, including multi-hit status, prognosis, treatment implications, transplant planning, and germline versus somatic findings.

TP53 Mutation Test in Leukemia High-Risk Blood Cancer, Mutation Status, and...

Learn what a germline TP53 mutation test means for Li-Fraumeni syndrome, including cancer risks, whole-body MRI surveillance, treatment considerations, and family testing.

TP53 Mutation Test Li-Fraumeni Syndrome, Tumor Suppressor Gene, Cancer Risk, and...

Understand a tumor mutational burden (TMB) result, including mut/Mb scoring, TMB-high meaning, the 10 mut/Mb cutoff, immunotherapy relevance, and important assay limitations.

Tumor Mutational Burden (TMB) Test Genomic Score, Mutation Load, and Immunotherapy...

BRCA1 and BRCA2 testing explained: who should test, what positive, negative, and VUS results mean, hereditary breast cancer risk, and family testing.

BRCA1 and BRCA2 Test for Breast Cancer: Hereditary Risk, Variant Meaning,...

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