Learn what oxygen saturation (SpOâ‚‚) means, how pulse oximetry works, normal ranges, and key limitations in respiratory care.
Vital Signs
Blood Pressure: Physiology and Clinical Implications
Learn blood pressure basics, including physiology, regulation, causes of hypo and hypertension, and its role in perfusion and patient care.
Respiratory Rate: Clinical Relevance in Patient Assessment
Learn how respiratory rate reflects ventilation, guides care, and signals early deterioration in patients across clinical settings.
Heart Rate: Physiology and Assessment in Respiratory Care
Learn what heart rate is, normal ranges, causes of tachycardia and bradycardia, and how it impacts oxygen delivery and patient care.
Vital Signs: Overview and Practice Questions (2026)
Learn what vital signs are, the different types, and why they are essential for patient assessment and respiratory care.