for people ages 18-89 (full criteria)
at Fresno, California
study started
estimated completion
Susan J Dempsey



The primary objective of this prospective, blinded observational study is to correlate assessment of sedation and respiratory status with capnography and pulse oximetry monitoring in hospitalized adult medical and trauma patients receiving patient-controlled analgesia (PCA) or nurse administered intravenous opioids for acute pain. Nursing assessment of respiratory status and sedation level will be correlated with capnography and pulse oximetry values as technology-supported monitoring to identify respiratory depression and opioid-induced sedation. The secondary objective is to identify capnography and pulse oximetry values that correlate with respiratory decompensation and opioid-induced sedation in medical and trauma patients on the general care floor.

Official Title

Incidence of OIRD in Medical and Trauma Patients on the General Care Floor Receiving PCA or Nurse Administered Intravenous Opioids Monitored by Capnography and Pulse Oximetry: A Prospective, Blinded Observational Study


Respiratory Depression Sedation Respiratory Insufficiency


You can join if…

Open to people ages 18-89

  1. Spontaneously breathing adults 18 to 89 years of age
  2. Receiving PCA or nurse administered IV opioids for medical or trauma-related pain
  3. Admitted to the general care floor from the emergency department
  4. Able to provide written informed consent

You CAN'T join if...

  1. Age is less than 18 years or greater than 89 years
  2. Transfer to the general care floor from the ICU
  3. Provider order for respiratory monitoring using continuous capnography
  4. Receiving intrathecal or epidural opioids
  5. Trauma patient with a nerve block
  6. Inability or unwillingness to wear the EtCO2 sampling line nasal cannula or pulse oximetry sensor
  7. History or diagnosis of a sleep disordered breathing syndrome
  8. Use of CPAP or BIPAP non-invasive ventilation as home regime
  9. Pre-existing co-morbidity that impacts respiration or ventilation (e.g. COPD or pulmonary fibrosis) (for the purpose of this study a trauma patient with rib fractures is not considered having a pre-existing condition)
  10. . Receiving non-invasive ventilation
  11. . Unable or unwilling to participate
  12. . Member of a vulnerable population such as pregnant women or prisoners


  • Community Regional Medical Center
    Fresno California 93621 United States

Lead Scientist


accepting new patients by invitation only
Start Date
Completion Date
Fresno Community Hospital and Medical Center
Study Type
Last Updated