Learn what central venous pressure (CVP) means, how it is measured, and how it helps assess preload, fluid status, and right heart function.
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.
Lung Capacities: Measurements in Pulmonary Function Testing
Learn about lung capacities in pulmonary function testing, their normal values, and how they help identify respiratory disease patterns.
Lung Volumes: Measurements in Pulmonary Function Testing
Learn about lung volumes in pulmonary function testing, their normal values, and how they help identify respiratory disease patterns.
Cricoid Pressure During Intubation and Airway Management
Learn how cricoid pressure is used during intubation, including its purpose, technique, risks, and role in airway management.
Rapid Sequence Intubation (RSI): Procedure and Key Concepts
Learn about rapid sequence intubation (RSI), including indications, steps, medications, risks, and the role of respiratory therapists.
Pulmonary Contusion: Respiratory Care and Management
Learn about pulmonary contusion, including causes, symptoms, diagnosis, complications, and respiratory care management.
Tactile Fremitus: Assessment, Findings, and Clinical Meaning
Learn what tactile fremitus is, how it is assessed, and what increased or decreased findings mean in respiratory care.
Tracheostomy Button: Clinical Uses, Benefits, and Risks
Learn what a tracheostomy button is, how it maintains the stoma, supports airway access, and helps patients breathe and speak.
Peak Flow: Measurement, Interpretation, and Clinical Uses
Learn what peak flow measures, how PEFR testing works, and why it helps monitor asthma, airflow obstruction, and bronchodilator response.
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, FiO₂ 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.