Learn what peak flow measures, how PEFR testing works, and why it helps monitor asthma, airflow obstruction, and bronchodilator response.
John Landry, BS, RRT
John Landry is a registered respiratory therapist from Memphis, TN, and has a bachelor’s degree in kinesiology. He enjoys using evidence-based research to help others breathe easier, live healthier, and improve their overall quality of life.
Intubation: Purpose, Procedure, Risks, and Management
Learn what intubation is, why it’s performed, how tube placement is confirmed, and what complications clinicians must monitor.
Endotracheal Tube: Purpose, Placement, and Complications
Learn what an endotracheal tube is, why it is used, how placement is confirmed, and what complications clinicians must monitor.
Pleural Drainage System: Key Concepts for Respiratory Care
Learn how a pleural drainage system works, including chest tube setup, water seal function, suction control, monitoring, and safety.
Mechanical Insufflation-Exsufflation (MIE) for Cough Assist
Learn how mechanical insufflation-exsufflation (MIE) helps clear secretions by simulating a cough with positive and negative pressure.
Nasal Cannula: Overview, Uses, Flow Rates, and Limitations
Learn about nasal cannula oxygen therapy, including flow rates, FiOâ‚‚ estimates, humidification, safety, and uses in respiratory care.
Burns and Smoke Inhalation: Respiratory Care Guide
Learn about burns and smoke inhalation, including airway risks, toxic gas exposure, oxygen therapy, ventilation, and emergency care.
Tenacious Secretions: Causes, Risks, and Management
Learn what tenacious secretions are, why they affect breathing, and how respiratory therapists assess, prevent, and manage them.
Oxygen Concentrator: Uses, Types, Safety, and Setup
Learn how an oxygen concentrator works, including uses, types, flow rates, safety tips, maintenance, and home oxygen setup.
Trigger Variable in Mechanical Ventilation: A Complete Guide
Learn what the trigger variable means in mechanical ventilation, including how it starts inspiration and affects breath delivery.
Ultrasound in Respiratory Care and Bedside Imaging
Learn how ultrasound is used in respiratory care, critical care, lung assessment, cardiac imaging, and bedside procedures.
Exhaled Nitric Oxide (FeNO): Uses, Procedure, and Results
Learn about exhaled nitric oxide (FeNO), how the test works, and how it helps assess asthma-related airway inflammation.
AD109 for Sleep Apnea: A Potential New Pill for OSA Patients
Learn how AD109 may help treat sleep apnea, how it works, what trials show, and what patients should know before FDA approval.
Continuous Pulse Oximetry for Monitoring Oxygen Saturation
Learn how continuous pulse oximetry monitors SpOâ‚‚, supports oxygen therapy, and helps detect changes in patient oxygenation.
Emergency and Critical Care for Respiratory Therapists
Learn the essentials of emergency and critical care, including respiratory failure, airway management, oxygenation, and ventilation.
Fundamentals of Respiratory Care and Key Concepts
Learn the fundamentals of respiratory care, including assessment, oxygen therapy, airway management, ventilation, and patient education.
Stroke Volume: Why It Matters in Respiratory Care
Learn what stroke volume is, how it affects cardiac output, and why it matters in respiratory care, ventilation, and perfusion.
Stroke: Airway Management and Respiratory Care
Learn how stroke affects airway protection, breathing, aspiration risk, ventilation, and respiratory care decisions.
Early Warning Signs of a Stroke You Should Never Ignore
Learn the early warning signs of a stroke, including FAST symptoms, vision changes, weakness, speech trouble, and when to call 911.
Partial Pressure of Oxygen in Arterial Blood (PaOâ‚‚)
Learn what partial pressure of oxygen in arterial blood (PaOâ‚‚) means and how it helps assess oxygenation and hypoxemia.