510(k) Report

510(k) · Cleared

Cleared

Modification to: Diazyme Potassium Enzymatic Assay, Model DZ113A

K053566510(k) SpecialCleared Feb 15, 200655-day reviewClass II21 CFR 862.1600

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

Diazyme Laboratories · MZV Test, System, Potassium, Enzymatic Method

Cleared on Feb 15, 2006 after a 55-day review. The FDA summary names no predicate by number.

Decided
Feb 15, 2006
Review
55 days
Class
Class II
Product code
MZV
Recalls
None
Predicates
0

The FDA summary names no predicate by number.

FIG. 1 — Lineage of K053566Source: FDA 510(k) database · 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 MZV? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new MZV device

  1. #1 K200865 Piccolo Potassium Test Systemscore 2.5 · 2 generations · no Class I recall
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What was it cleared against?

The FDA summary names no predicate by number.

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.

How does its category compare?

All MZV devices

MZV Test, System, Potassium, Enzymatic Method: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · MZV

1in 2021

2009: 12021: 1
2007high 1 (2009) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · MZV

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

Recalls per year · MZV

No recall names MZV since 2007.

Adverse event reports per year · MZV

1in 2015

2007: 12008: 32009: 82010: 82011: 572012: 322013: 632014: 222015: 1
2007high 63 (2013) · low 0 (2016)2025

MAUDE reports naming product code MZV, 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—01
20080—03
20091—08
20100—08
20110—057
20120—032
20130—063
20140—022
20150—01
20160—00
20170—00
20180—00
20190—00
20200—00
20211—00
20220—00
20230—00
20240—00
20250—00
20260—0—

What is it indicated for?

Diazyme Potassium Enzymatic Assay Kit in conjunction with Diazyme Potassium Low and High Calibrators, are intended for the quantitative in vitro determination of potassium in human serum. Measurements obtained by this assay are used to monitor electrolyte balance.

Diazyme Potassium Enzymatic Assay has controls for normal serum potassium level and abnormal serum potassium level. The controls are used as reference samples for checking the functionality of the Diazyme Potassium Enzymatic Assay.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K053566: Modification to: Diazyme Potassium Enzymatic Assay, Model DZ113A.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K053566

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