Oxygen Therapy for the Treatment of Undifferentiated Headache in the Emergency Department

Exclusion Criteria

• •patients who need immediate oxygen after triage: Recent fire or carbon monoxide exposure\_\_\_\_\_\_\_ O2 saturation 94% or less on room air on triage vitals \_\_\_\_\_\_ patient arrives on supplemental oxygen\_\_\_\_\_\_\_ patient reports shortness of breath\_\_\_\_\_\_\_
• •patients in whom 100% oxygen is contraindicated, potentially undesirable, or controversial: history of COPD\_\_\_\_\_\_\_ possible cardiac ischemia (mouth / jaw / neck / shoulder / chest / abdomen pain or pressure)\_\_\_\_\_\_\_ possible stroke (new focal weakness or numbness, speech, hearing or vision deficit, bowel or bladder incontinence or retention)\_\_\_\_\_
• •patients unable to tolerate the gas treatment: patient not able to tolerate a face mask\_\_\_\_\_\_\_ patient requests immediate treatment with another preferred therapeutic agent\_\_\_\_\_\_\_
• •treating physician or nurse request to discontinue the study at any point\_\_\_\_\_\_\_
• •patients who have diminished decision-making capacity history of mental retardation or pervasive developmental disorder\_\_\_\_\_\_\_ patient not awake and alert\_\_\_\_\_\_\_ patient not oriented to self, month and year, and current location\_\_\_\_\_\_\_ patient unwilling or unable to fully participate in the research associate interview and consent process\_\_\_\_\_\_\_
• •patients who are at risk for intracranial hemorrhage history of intracranial aneurythm, hemorrhage, surgery, or tumor\_\_\_\_\_\_\_ current headache began after trauma\_\_\_\_\_\_\_ current headache began after using elicit drugs\_\_\_\_\_\_\_
• •patients who are at high risk for intracranial infection fever \> 100.4 F on triage vitals\_\_\_\_\_\_\_ complaining of recent onset neck stiffness\_\_\_\_\_\_\_
• •patients who are at high risk for extracranial head pathology ear pain or drainage\_\_\_\_\_\_\_ tooth or gum pain\_\_\_\_\_\_\_ headache localized to a skin lesion on the head\_\_\_\_\_\_
• •patient is potentially critically ill active bleeding from any source\_\_\_\_\_\_\_ heart rate \<60 or \>130 on triage vitals\_\_\_\_\_\_\_ systolic blood pressure \<90 or \>180 on triage vitals\_\_\_\_\_\_\_ respiratory rate \< 10 or \>30 on triage vitals\_\_\_\_\_\_\_
• •patient is younger than 21\_\_\_\_\_\_\_
• •patients who know or suspect they are pregnant \_\_\_\_\_