Speaking roughly, normal levels of thyroid-stimulating hormone (TSH) are in the range of 0.4 to 4.0 mIU/L. However, each laboratory and test manufacturer identifies its own normal TSH range.
This pressure is typically set slightly higher than atmospheric pressure to prevent atelectasis, decrease inspiratory work of breathing, or improve gas exchange depending on the clinical scenario. This positive end-expiratory pressure (PEEP) is generated by a resistor in the exhalation port of the ventilator (Fig. 2).
Peak Inspiratory Pressure(PIP) is a combination of the driving pressure and plateau Pressure. Plateau pressure reading includes PEEP, but not the driving pressure required to deliver the breath. Static Compliance of the Lung is Tidal Volume/P plateau-PEEP.