Respiratory Therapy Blog

Calculate heart rate from an electrocardiogram (ECG) strip using large or small boxes to assess cardiac rhythm and rate quickly.

Calculate dynamic lung compliance (Cdyn) using tidal volume, peak pressure, and PEEP to assess ventilator mechanics and airway resistance.

Calculate corrected tidal volume (VT) to account for circuit compression and estimate the volume actually delivered to the patient.

Estimate child medication dosage from an adult dose using age or weight-based formulas for educational reference.

Calculate cerebral perfusion pressure (CPP) using MAP and ICP to assess brain blood flow and neurologic perfusion status.

Calculate cardiac output using Fick’s method with oxygen consumption and arterial-venous oxygen content difference.

Calculate cardiac output (QT) using heart rate and stroke volume to assess blood flow, heart function, and tissue perfusion.

Calculate cardiac index (CI) using cardiac output and body surface area to assess heart function and tissue perfusion.

Calculate body surface area (BSA) using height and weight to help estimate for clinical formulas, dosing, and patient assessment.

Estimate arterial oxygen saturation using PaO2 to help assess oxygenation and interpret ABG results in respiratory care.

Calculate arterial oxygen content (CaO2) using hemoglobin, SaO2, and PaO2 to assess oxygen-carrying capacity in the blood.

Calculate alveolar minute ventilation using tidal volume, dead space, and respiratory rate to assess effective gas exchange.

Calculate vital capacity to assess lung volume, ventilatory function, and respiratory muscle strength using a simple VC calculator.

Calculate work of breathing to assess respiratory effort, ventilatory load, and changes in lung mechanics during breathing.

Calculate vital capacity to assess lung volume, respiratory muscle strength, and ventilatory function using VC measurements.

Calculate venous blood gas (VBG) values to assess pH, CO₂, bicarbonate, and acid-base status using this simple VBG calculator tool.

Calculate the VD/VT ratio to assess dead space ventilation and evaluate gas exchange efficiency in respiratory care.

Calculate the A-a gradient to assess oxygen transfer and help evaluate causes of hypoxemia using ABG and oxygen data.

Calculate airway resistance using peak pressure, plateau pressure, and flow to assess ventilator mechanics and airflow obstruction.