Learn what oxygen saturation (SpOâ‚‚) means, how pulse oximetry works, normal ranges, and key limitations in respiratory care.
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.
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.
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.
Static Compliance: Formula, Interpretation, and Clinical Use
Learn about static compliance, including the formula, normal values, causes of low compliance, and how it helps assess ventilator patients.
Mean Arterial Pressure (MAP): Calculation and Key Concepts
Learn what mean arterial pressure (MAP) is, how to calculate it, normal values, and why it matters for perfusion and respiratory care.
Delivery Room Management for Newborn Respiratory Care
Learn about delivery room management, including newborn assessment, stabilization, airway support, oxygen therapy, and respiratory care.
Infant Respiratory Disorders: Types and Management (2026)
Learn about infant respiratory disorders, including common causes, signs of distress, diagnosis, treatment, and respiratory care.
Foreign Body Aspiration: Causes, Signs, and Treatment
Learn about foreign body aspiration, including causes, symptoms, diagnosis, emergency treatment, and key facts for respiratory care.
Sudden Infant Death Syndrome: Risk Factors and Prevention
Learn about sudden infant death syndrome (SIDS), including key risk factors, prevention tips, and what caregivers should know.