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Optimal Length for Nasal Mid-turbinate and Nasopharyngeal Swabs

Optimal Insertion Length for Nasal Mid-turbinate and Nasopharyngeal Swabs for Respiratory Virus Infection Diagnostic Testing - a Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04840082
Enrollment
109
Registered
2021-04-09
Start date
2021-03-07
Completion date
2021-03-08
Last updated
2021-04-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Covid19

Brief summary

This study aim to explore the optimal swap insertion length for mid-turbinate and nasopharyngeal samples. Our clinical trial took place at a Covid-19 test center in Copenhagen. Participants consisted of voluntary citizens who were at the test center for a nasopharyngeal antigen quicktest. An endoscopic examination was performed simultaneous with the swap to measure the length from the vestibulum nasi to the posterior wall of the nasopharynx and the mid-turbinate.

Interventions

DIAGNOSTIC_TESTNasopharyngeal swab for COVID-19 testing

A nasopharyngeal swab was performed endoscopically video guided to measure the actual length from to the mid turbinate and the posterior nasopharyngeal wall

Sponsors

Rigshospitalet, Denmark
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
16 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Referred for COVID-19 testing

Exclusion criteria

* Nose patology

Design outcomes

Primary

MeasureTime frameDescription
Length from the vestibulum nasi to the posterior wall of the nasopharynx.From inclusion at the testcenter until the COVID-19 testing was completed.Endoscopic measurement of the length from the vestibulum nasi to the posterior wall of the nasopharynx.
Length from the vestibulum nasi to the mid-turbinate.From inclusion at the testcenter until the endoscopic examination was completedEndoscopic measurement of the length from the vestibulum nasi to the mid-turbinate.

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026