Which type of mechanical hazard occurs when rapidly released gases create a shock wave that travels outward from the center of the blast?

What is the most common cause of elevated levels of antidiuretic hormone (ADH) secretion?

a. Autoimmune disease b. Cancer c. Pregnancy d. Heart failure

Before inspiration and actuation of a metered dose inhaler, the patient should exhale to which of the following?

a. Total lung capacity b. Residual volume c. Functional residual capacity d. Expiratory reserve volume