Sebastien Castelain
Registered Nurse
Oakland,CA
Summary
Senior Registered Nurse with 15+ years of experience in Behavioral Health and Psychiatry across inpatient, outpatient, and community settings in the U.S. and Europe.
Specialized in high-acuity psychiatric care, crisis intervention, suicide risk assessment, and de-escalation in complex and volatile environments. Known for calm clinical judgment, strong therapeutic presence, and the ability to stabilize units while supporting team safety and patient engagement.
Experienced in medication management, interdisciplinary collaboration, admission-to-discharge care, and mentoring less experienced staff. Trusted by teams and leadership for reliability, adaptability, and consistent performance in high-pressure settings.
Overview
15
15
years of professional experience
4
4
Certification
Work History
Registered Nurse, Inpatient Psychiatric Unit
County of Marin
Greenbrae, CA
09.2021 - Current
- Crisis and psychiatric emergency management, Medication management and administration, injection management and administration, counseling, vital signs monitoring, recording vital statistics and test results in electronic medical records, patients education, managing and coordinate nursing care.
- Secured controlled narcotics and distributed medication on schedule to meet patient needs and minimize misuse opportunities.
- Managed care from admission to discharge
IV Therapy Nurse
Apple Valley healthcare
Sebastopol, CA
09.2021 - Current
- Administration of medications and fluids through intravenous (IV) line, central line, or venous access port.
- Evaluated patient histories, complaints and current symptoms.
- Administered different therapies and medications in line with physician orders and treatment plan.
- Monitored patient reactions after administering medications and IV therapies.
- Accurately documented treatment, medications and IVs administered, discharge instructions and follow-up care.
- Administered medications to 12 patients and monitored response to medications
Community Psychiatric Nurse
County Of Sonoma, DHS
Santa Rosa, CA
06.2016 - 09.2021
- Medication management and administration, antipsychotic medication injection administration and management, counseling, vital signs, recording vital statistics and test results in medical records, group activity, patients education, managing and coordinate nursing care and care planning of mental health program.
- Collaborated with multidisciplinary treatment team to revise goals, objectives and interventions based on patient status and needs.
- Delivered customized care to patients, maintaining focus on individual goals and daily achievements.
- Monitored patient reactions after administering medications and IV therapies.
- Explained course of care and medication side effects to patients and caregivers in easy-to-understand terms.
- Conducted ongoing monitoring and evaluations of behaviors and conditions, and updated clinical supervisors with current information.
- Cared for patients 150 patient in community, supporting fellow case manager in delivering outstanding treatment to patients
Charge RN
Santa Rosa Convalescence hospital
Santa Rosa, CA
02.2016 - 06.2016
- Activity of daily living, vital statistics and test results in medical records, provided education to patients, medication administration, nursing care, wound care, collect and control completeness and compliance information on medical activity.
- Collaborated with physicians to quickly assess patients and deliver appropriate treatment while managing rapidly changing conditions.
- Monitored nursing care, patient assessment processes and treatment implementations.
- Educated patients and answered questions about health condition, prognosis and treatment.
- Built rapport with patients and family members to deliver exceptional care.
- Administered medications via oral, IV and intramuscular injections and monitored responses.
- Performed patient assessments and adjusted care plans accordingly.
- Cared for patients in 16 bed unit, supporting fellow nurses in delivering outstanding treatment to patients
Registered Nurse, Medical-Surgical Unit
Clinique Vitalia
Saint Omer, France
10.2014 - 10.2015
- Activity of daily living, vital statistics and test results in medical records, provided education to patients, medication administration, nursing care (perfusion, injection, NGT, urinary catheter) wound care, collect and control completeness and compliance information on medical activity.
- Ordered and analyzed diagnostic tests to identify and assess patient conditions.
- Provided direct patient care, stabilized patients and determined next course of action.
- Minimized hospital stays with recovery-centered approaches, reducing average in-patient stay length.
- Monitored hemodynamic variances to identify signs of life-threatening complications.
- Collected blood, tissue and other laboratory specimens and prepared for lab testing.
Psychiatric Nurse
Clinique de Quissac, Nîmes
Quissac, France
12.2011 - 06.2013
- Administered medication and treatments to patients to observe and record responses.
- Performed patient assessments to monitor expected response to medications and altering treatment plans.
- Explained useful coping methods to relieve depression and anxiety.
- Provided direct quality care to patients by monitoring, recording and evaluating psychiatric conditions.
- Monitored vital signs, nutritional intake and signs and symptoms of complications to report deviations to supervisor.
- Responded to numerous volatile situations and violent outbreaks to restore safety and security of patients and staff.
- Advocated for and strived to protect health, safety and rights of patient.
- Communicated with healthcare team members to plan, implement and enhance treatment strategies.
Registered Nurse
universitaire de Nice
Nice, France, France
12.2010 - 11.2011
- Held psychiatric evaluations, organized therapeutic activities, draw and prepared blood for exams and administered injections, collaborated with psychiatric care team, administered prescription medications.
- Administered medications via oral, IV and intramuscular injections and monitored responses.
- Provided direct patient care, stabilized patients and determined next course of action.
- Implemented medication and IV administration, catheter insertion and airway management.
- Coordinated with medical and paramedical professionals to provide appropriate input and effectively formulate and implement treatment plans for patients.
- Oversaw care of suicidal patients and acted swiftly to reduce risk of harm to themselves or others.
- Responded to numerous volatile situations and violent outbreaks to restore safety and security of patients and staff.
Registered Nurse, Inpatient Psychiatric Unit
Crestwood Behavioral Health
Santa Rosa, CA
04.2022 - Current
- Oversaw care of suicidal patients and acted swiftly to reduce risk of harm to themselves or others.
- Provided direct quality care to patients by monitoring, recording and evaluating psychiatric conditions.
- Responded to numerous volatile situations and violent outbreaks to restore safety and security of patients and staff.
- Performed patient assessments to monitor expected response to medications and altering treatment plans.
- Administered medication and treatments to patients to observe and record responses.
- Explained useful coping methods to relieve depression and anxiety.
- Advocated for and strived to protect health, safety and rights of patient.
Education
Associate of Science -
Board of Registered Nursing
Sacramento02.2016
Associate of Science - Nursing
French Red Cross
Tourcoing, France12.2010
GED -
Universite Du Littoral
Calais, France09.2007
Associate of Arts - Culinary Arts
Lycée Vauban
France10.1997
Skills
- Procedure Assistance
- Patient Care Oversight
- Accurate Documentation
- Patient Care Assessment
- Attention to Detail
- Compassionate and Caring
- Monitoring Vital Signs
- Clear Patient Communication
- Critical Thinking
- Decision Making
- Blood Draw and Sample Collection
- Specialized Healthcare Referrals
- Creative Problem Solving
- Active listening
- Engage in meaningful questioning
- Establish client-centered goals or outcomes
Accomplishments
- Vitals Testing - Measured an average of 30 patients' weight, height, body temperature, pulse rate and blood pressure daily.
- Charting - Developed and organized 300+ charts for all new and current patients, routinely updating information for physician reference.
- Documentation - Ensured charting accuracy through precise documentation.
- Patient Advocacy - Explained treatment procedures, medication risks, special diets and physician instructions to patients.
Certification
CPI certification in 2021
Pro-ACT training
BLS/CPR certification from AHA in 2021
Nurse Coach Collective
Additional Information
- Passionate about music, experience in music industry and culinary industry in France.
Languages
French
English
Spanish
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
swipe to browse
Work Preference
Work Type
Part TimeFull TimeLocation Preference
RemoteImportant To Me
Work-life balanceCareer advancementFlexible work hoursCompany CulturePersonal development programsTeam Building / Company RetreatsTimeline
Registered Nurse, Inpatient Psychiatric Unit
Crestwood Behavioral Health
04.2022 - Current
Registered Nurse, Inpatient Psychiatric Unit
County of Marin
09.2021 - Current
IV Therapy Nurse
Apple Valley healthcare
09.2021 - Current
Community Psychiatric Nurse
County Of Sonoma, DHS
06.2016 - 09.2021
Charge RN
Santa Rosa Convalescence hospital
02.2016 - 06.2016
Registered Nurse, Medical-Surgical Unit
Clinique Vitalia
10.2014 - 10.2015
Psychiatric Nurse
Clinique de Quissac, Nîmes
12.2011 - 06.2013
Registered Nurse
universitaire de Nice
12.2010 - 11.2011
Associate of Science -
Board of Registered Nursing
Associate of Science - Nursing
French Red Cross
GED -
Universite Du Littoral
Associate of Arts - Culinary Arts
Lycée Vauban