When preparing to provide positive pressure ventilation to a child, what will be an acceptable tidal volume if the child weighs 22 kg?

What is the earliest sign of a left-sided pleural effusion on an upright chest radiograph?

a. An increased distance between the inferior margin of the left lung and the stomach gas bubble b. Inability to see small pulmonary blood vessels over the left lower lung c. A widened mediastinum d. Elevation of the right hemidiaphragm

The amount of money one needs to invest to reach a target amount of money at a future date is known as the ____________________ of a single sum.

Fill in the blank(s) with the appropriate word(s).