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Arterial Blood Gas Sampling: 23G Versus 25G Needle - A Randomised Control Study to Compare Pain

Arterial Blood Gas Needle Study: A Randomised Control Study Comparing 23 gauge Versus 25 gauge Needle Success & Pain Score

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12609000957291
Enrollment
240
Registered
2009-11-06
Start date
2010-06-01
Completion date
2012-07-31
Last updated
2020-01-13

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

Conditions

None listed

Brief summary

The primary purpose ot the study is compare two of the commonly used needles in arterial blood gas taking and to determine the level of pain/success rate & complications. Whilst the smaller needle may be theoritically less painful, there is uncertainty whether it is more difficult to perform leading to lower success rates & complications.

Interventions

Taking small amount of blood (0.5ml) from the radial artery at the wrist with a thicker 23G needle.

Sponsors

Westmead Hospital Emergency Department
Lead SponsorHospital

Study design

Allocation
Randomised controlled trial
Primary purpose
Treatment

Eligibility

Sex/Gender
All
Age
16 Years to No maximum
Healthy volunteers
No

Inclusion criteria

All patients presenting to the emergency department who need to undergo arterial blood gas analysis as part of their diagnostic work up will be considered candidates for the study provided they do not fulfil the absolute exclusion criteria.

Exclusion criteria

1. Patients with altered mental/cognitive/medical state either acute or chronic deemed not able to convey pain score accurately. 2. Unwell patients who require urgent medical intervention which precludes informed consent such as Category 1 patients.

Outcome results

None listed

Source: ANZCTR · Data processed: Mar 8, 2026