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.
A common strategy is to combine SIMV with an additional ventilator mode known as pressure support ventilation (PSV) (Fig. 4). In this situation, inspiratory pressure is added to spontaneous breaths to overcome the resistance of the endotracheal tube or to increase the volume of spontaneous breaths.
Diastolic pressure (DBP), on the other hand, refers to the residual pressure generated by the recoil of the walls of the arteries, in the split second when the heart is not squeezing, but rather filling (reloading) with blood. (SBP-DBP) = pulse pressure.