510(k) Report

510(k) · Cleared

Cleared

Phem-Alert

K032161510(k) TraditionalCleared Sep 30, 200377-day reviewClass I21 CFR 862.1550

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Femtek,Llc. · LNW Paper, Obstetric Ph

Cleared on Sep 30, 2003 as substantially equivalent to K012230 (Femtek,Llc., 2001) after a 77-day review. Its family tree reaches back 3 generations to 1985.

Decided
Sep 30, 2003
Review
77 days
Class
Class I
Product code
LNW
Recalls
None
Predicates
1

Its longest line of descent runs back 3 generations to K850858 (1985). No later device cites it as a predicate yet.

  1. Root · 3 generations backK850858 OB-PH - PH Test PaperUro Pharmaceuticals, Inc. · 1985
  2. 2 generations backK960648 Phem-ChekFemtek, Inc. · 1996
  3. 1 generation backK012230 Phem-AlertFemtek,Llc. · 2001
  4. This deviceK032161 Phem-AlertFemtek,Llc. · 2003
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−3K850858OB-PH - PH Test PaperUro Pharmaceuticals, Inc.1985—
−2K960648Phem-ChekFemtek, Inc.1996—
−1K012230Phem-AlertFemtek,Llc.2001—
0 (this device)K032161Phem-AlertFemtek,Llc.2003—
FIG. 1 — Lineage of K032161, 1985–2003Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in LNW? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

  • Candidate predicates for a device like this, rankedin the report
  • Recall history across each candidate’s familyin the report
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What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K012230Phem-AlertFemtek,Llc.2001—

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 18 years and passes through 3 companies; a new generation was cleared every 5.4 years on median.
  • None of the 3 ancestors has a recall.

How does its category compare?

All LNW devices

LNW Paper, Obstetric Ph: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · LNW

FDA has decided no LNW device since 2007.

Median 510(k) review, days · LNW

Too few LNW 510(k)s in any year since 2007 to give a median.

Recalls per year · LNW

No recall names LNW since 2007.

Adverse event reports per year · LNW

1in 2022

2010: 12022: 1
2007high 1 (2010) · low 0 (2007)2025

MAUDE reports naming product code LNW, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—01
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20180—00
20190—00
20200—00
20210—00
20220—01
20230—00
20240—00
20250—00
20260—0—

What is it indicated for?

The pHEM-ALERT® test measures vaginal pH and is intended for use by women who have any of the following vaginal symptoms:

Itching - Burning - Unpleasant odor - Unusual discharge

This test may help decide if these symptoms are caused by an infection that may require follow-up by your healthcare provider. This test is only intended for women who have normal menstrual periods (periodic vaginal bleeding) or who may currently be pregnant. If you are pregnant, always discuss your symptoms and the result of this test with your healthcare provider and NEVER treat yourself.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K032161: Phem-Alert.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 3, 2026. https://510kreport.com/device/K032161

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026