LOINCActive

LOINC Code 33438-3: Breath rate mechanical --on ventilator

33438-3 is a LOINC code used to identify Breath rate mechanical --on ventilator in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Breaths.mechanical^on ventilator. It is commonly used with the system or sample type ^Patient.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Breaths.mechanical^on ventilator. It is commonly used with the system or sample type ^Patient.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

Breath rate mechanical --on ventilator
Breaths.mechanical^on ventilator
The number of breaths per minute the patient received with assistance of the ventilator only - Not counting the spontaneous breaths.Vents which use the settingBIRD VIP "Assisted Rate".
Count/time; Lung; nRate; Number rate; Number Rate = Count/Time; Point in time; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory; Respiratory rate

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Breath rate mechanical --on ventilatorBreaths.mechanical on ventBreaths.mechanical^on ventilatorPULMNRatPt^Patient

Frequently asked questions

Code details

Code33438-3
SystemLOINC
Display nameBreath rate mechanical --on ventilator
DescriptionBreaths.mechanical^on ventilator
Short nameBreaths.mechanical on vent
ComponentBreaths.mechanical^on ventilator
PropertyNRat
TimingPt
System (specimen)^Patient
ScaleQn
ClassPULM
Example unitsbreaths/min
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.73

Part names

Breaths.mechanical^on ventilatorNRatPt^PatientQnNumber RatePoint in time (spot)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

LOINC Code 33438-3 | HealthAssure