lateral flow test

Quick home screening

A lateral flow test is a simple diagnostic device that detects substances—typically proteins or genetic material—by drawing a liquid sample across a reactive strip.

The technology became widely familiar during the COVID-19 pandemic as rapid at-home tests: I took a lateral flow test before visiting my grandmother.

Results appear within minutes as visible lines, similar to pregnancy tests.

specimen

swab

Absorbent cleaning implement

mucus · sample · buffer · extraction · throat swab · urine · blood · serum · fluid

mechanism

antibody

Protein targeting foreign substances

membrane · conjugate · wicking · binding · reagent · analyte

screening

surveillance

Systematic observation of subjects

contact tracing · prevalence · incidence · epidemiology · early detection

applications

COVID-19

WHO-named 2019 coronavirus

  • pregnancyCarrying developing offspring
  • HIVAIDS-causing retrovirus
  • influenzaAcute viral respiratory infection

strep · malaria · hCG · drug screening · RSV · hepatitis · food safety · veterinary · fertility · ovulation

results

positive

Affirming or certain

specificity · false positive · false negative · accuracy · reading · interpretation · window · threshold · viral load

format

cassette

Magnetic audio cartridge

single-use · kit · handheld · compact · portable · self-contained · point-of-care · pocket-sized · reader · dipstick

Categories
Opposites
diagnostic methodology

lateral flow testPCR test

DNA amplification diagnostic method

blood culture · genetic sequencing · sequencing · mass spectrometry

testing location/accessibility

lateral flow testclinical testing

Systematic evaluation of treatments

Family

lateral, laterally, bilateral, bilaterally, unilateral, unilaterally, collateral, equilateral, flow

Familiarity
Top 500,000
Profile
Used worldwide · Concrete · Rated G