Learn the difference between a lung mass and nodule, including size, causes, cancer risk, diagnosis, testing, and follow-up.
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.
Popcorn Lung: Causes, Symptoms, Diagnosis, and Treatment
Learn about popcorn lung, including its causes, symptoms, diagnosis, treatment options, prevention, and long-term outlook.
What Does a Man Screaming With No Lungs Sound Like?
What does a man screaming with no lungs sound like? Learn why a true scream requires airflow and what could realistically be heard.
Parietal Pleura: Anatomy, Function, and Clinical Significance
Learn about the parietal pleura, including its anatomy, function, pain sensitivity, fluid drainage, and role in pleural disorders.
Visceral Pleura: Anatomy, Function, and Clinical Significance
Learn about the visceral pleura, including its anatomy, function, role in breathing, and involvement in common pleural disorders.
Pleura: Anatomy, Function, and Clinical Significance
Learn the anatomy and function of the pleura, including pleural pressure, fluid balance, common disorders, diagnosis, and treatment.
Oxygen Toxicity: Causes, Symptoms, and Clinical Management
Learn how oxygen toxicity causes lung injury, its signs, risk factors, complications, monitoring, treatment, and prevention.
Oxygen Extraction Ratio: Calculation and Clinical Meaning
Learn how to calculate the oxygen extraction ratio, interpret normal and abnormal values, and understand its role in tissue oxygenation.
Retractions: Causes, Types, Assessment, and Treatment
Learn what retractions are, their causes and types, how they are assessed, and which treatments may help reduce breathing difficulty.
Eupnea: Normal Breathing Pattern and Clinical Assessment
Learn what eupnea means, including normal breathing rate, rhythm, depth, effort, sighing, assessment, and signs of abnormal breathing.
Nosocomial Pneumonia: Symptoms, Diagnosis, and Treatment
Learn the causes, symptoms, diagnosis, treatment, risk factors, and prevention strategies for nosocomial pneumonia in hospitalized patients.
Noninvasive Positive Pressure Ventilation (NPPV)
Learn how noninvasive positive pressure ventilation (NPPV) works, including indications, settings, monitoring, benefits, and risks.
Noninvasive Ventilation (NIV): Types, Uses, and Monitoring
Learn about noninvasive ventilation (NIV), its types, benefits, applications, and how it supports patients with respiratory conditions.
National Board for Respiratory Care (NBRC)
Learn about the National Board for Respiratory Care (NBRC), its credentials, exams, and standards for respiratory care.
Nasal Flaring: Causes, Clinical Signs, and Assessment
Learn what nasal flaring means, what causes it, and how it helps identify increased work of breathing and respiratory distress.
Mixed Venous Oxygen Saturation (SvOâ‚‚): Key Clinical Insights
Learn how mixed venous oxygen saturation (SvOâ‚‚) reflects oxygen delivery, tissue demand, cardiac output, and overall perfusion.
Modified Borg Dyspnea Scale (MBS): Scoring and Clinical Use
Learn how the Modified Borg Dyspnea Scale (MBS) measures breathlessness, including scoring, clinical uses, and interpretation.
When to Worry About Lung Nodules: Key Warning Signs
Learn when to worry about lung nodules, which warning signs matter, and what tests or follow-up your doctor may recommend.
Spiculated Lung Nodule: What It Means and What Happens Next
Learn what a spiculated lung nodule means, possible causes, cancer risk, symptoms, testing, and when to seek medical care.
Ground Glass Lung Nodule: Causes, Risks, and Treatment
Learn what a ground glass lung nodule means, possible causes, cancer risk, symptoms, testing, and follow-up options.