Learn the fundamentals of respiratory care, including assessment, oxygen therapy, airway management, ventilation, and patient education.
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.
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.
Oxygen Saturation (SpOâ‚‚): What It Means and Why It Matters
Learn what oxygen saturation (SpOâ‚‚) means, how pulse oximetry works, normal ranges, and key limitations in respiratory care.
Pulmonary Capillary Wedge Pressure (PCWP): An Overview
Learn what pulmonary capillary wedge pressure (PCWP) means, how it is measured, normal values, and why it matters in respiratory care.
Peak Inspiratory Pressure (PIP) in Mechanical Ventilation
Learn what peak inspiratory pressure (PIP) means, what causes high PIP, and how it helps assess airway resistance and lung compliance.
Inspiratory Time: Key Concepts in Mechanical Ventilation
Learn what inspiratory time means, how it affects I:E ratio, tidal volume, oxygenation, auto-PEEP, and mechanical ventilation.
Bag-Valve-Mask (BVM): Overview and Clinical Uses
Learn how a bag-valve-mask (BVM) works, when it is used, and why proper technique is essential for safe manual ventilation.
Point-of-Care Testing (POCT): Blood Gas Analysis at Bedside
Learn how point-of-care testing (POCT) supports blood gas analysis, faster clinical decisions, and safer respiratory care at the bedside.
Lab Values in Respiratory Care: Key Clinical Insights
Learn the key lab values in respiratory care, including ABGs, CBC, electrolytes, lactate, cardiac markers, and clinical interpretation.
Medical Gas Therapy: Key Concepts for Respiratory Care
Learn about medical gas therapy, including oxygen delivery systems, specialty gases, safety risks, and respiratory care basics.
Fenestrated vs. Non-Fenestrated Tracheostomy Tube (2026)
Compare fenestrated vs. non-fenestrated tracheostomy tubes, including uses, benefits, risks, speech, suctioning, and airway care.
Oxygen Therapy: Uses, Devices, Benefits, and Risks
Learn what oxygen therapy is, when it’s used, how delivery devices work, and key risks, safety tips, and monitoring goals.
Ventilator Weaning: Steps, Criteria, and Key Concepts
Learn how ventilator weaning works, including readiness criteria, SBTs, extubation assessment, and common signs of weaning failure.
Asthma: Causes, Symptoms, Diagnosis, and Treatment
Learn about asthma, including its causes, symptoms, triggers, diagnosis, treatment options, and key concepts for respiratory care.
Do You Need a Prescription for a Nebulizer? (2026)
Learn if you need a prescription for a nebulizer, how coverage works, and why nebulized medications require medical guidance.
Static Compliance (Cstat) vs. Dynamic Compliance (Cdyn)
Learn the difference between static and dynamic compliance, including formulas, pressure trends, causes, and ventilator assessment tips.
Dynamic Compliance: Formula, Interpretation, and Clinical Use
Learn about dynamic compliance, including the formula, normal values, causes of low compliance, and how it helps assess ventilator patients.