# Venous Versus Arterial Blood Gas Sampling in Undifferentiated Emergency Patients

> **NCT04409470** · — · COMPLETED · sponsor: **University Hospital, Linkoeping** · enrollment: 250 (actual)

## Conditions studied

- Dyspnea
- Hypercapnia

## Interventions

- **DIAGNOSTIC_TEST:** Blood gas sampling from artery and vein

## Key facts

- **NCT ID:** NCT04409470
- **Lead sponsor:** University Hospital, Linkoeping
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-10-11
- **Primary completion:** 2022-03-27
- **Final completion:** 2022-03-27
- **Target enrollment:** 250 (ACTUAL)
- **Last updated:** 2022-06-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04409470

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04409470, "Venous Versus Arterial Blood Gas Sampling in Undifferentiated Emergency Patients". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT04409470. Licensed CC0.

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