And how to know if you need one! While it gets lost easily in the noise of the WIC, the truth is that the wedding is the ceremony, and the reception is the party that happens after the wedding. In a similar way, the rehearsal dinner has become a big deal in the American Wedding Machine, and the rehearsal itself is often an afterthought.
Residual volume (RV) is a lung volume representing the amount of air left in the lungs after a forced exhalation; this volume cannot be measured, only calculated.
Air takes up space, restricting lung expansion. Partial or complete collapse of the affected lung. Spontaneous: an air-filled blister on the lung ruptures. Traumatic: air enters through chest injuries. Tension: air enters pleural cavity through the wound on inhalation but cannot leave on exhalation. Open: air enters pleural cavity through the wound on inhalation and leaves on exhalation.