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Gel nails may fool oxygen monitors, study warns

NCT ID NCT06101628

Knowledge-focused Sponsor: Tarsus University Source: ClinicalTrials.gov ↗

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Registered, but not yet taking participants.
By invitation only
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Running, but no longer taking on new participants.
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Cancelled before anyone took part.

Expanded access (not trials)

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When the status isn't known

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Status unknown
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First seen Jun 27, 2026 · Last updated Aug 05, 2026 · Updated 2 times

Summary

This study looked at whether gel nail polish changes the accuracy of pulse oximeters, which measure oxygen levels in the blood. 162 healthy women had gel polish applied to one finger and left the other finger bare. Oxygen and heart rate readings were then compared between the two fingers. The goal is to help nurses and doctors get correct readings, especially before surgery.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

162 people

The number who actually took part.

Started

Jul 2023

Finished

Jul 2024

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * No communication problems, * With full left-hand fingernails, * No structural problems such as clubbing, * Body temperature ≥ 36- \<37.5 ºc, * SpO2 value ≥ 95%, * Capillary refill ≤ 2 seconds, * Who volunteered to participate in the research, * No psychiatric or physical illness that prevents communication, * Without circulatory problems such as Reynauld syndrome and peripheral arterial disease, * Without anaemia, * No respiratory diseases such as chronic obstructive pulmonary disease and asthma * Becoming a woman Exclusion Criteria: * Communication problems, * Incomplete left fingernails, * Structural problems like sticky fingers, * Body temperature ≥ 36- \< 37.5 ºc, * SpO2 value \<95%, * Capillary refill \>2 seconds, * Not volunteering to participate in the research, * Psychiatric or physical illness that prevents communication, * With circulatory problems such as Reynauld syndrome and peripheral arterial disease, * Anaemia * Respiratory diseases such as chronic obstructive pulmonary disease and asthma * Not being of the female gender

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Gel nail Healthy individuals Nursing Oxygen saturation Perioperative care

Contacts and locations

Locations

  • Gamze Bozkul

    Mersin, Turkey, 33400, Turkey (Türkiye)

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