________ Although sprains can occur in both the upper and lower parts of the body, the most common site is the wrist

Why is a small pneumothorax in the chest of a supine, mechanically ventilated patient sometimes difficult to detect via chest radiography?

A. because most of the pulmonary perfusion accumulates in the bases B. because the patient generally cannot take a deep breath in the supine position C. because the air often accumulates over the anterior surface of the chest D. because the air tends to collect in the apices of the lungs

__________________________ is a collection of 40 databases maintained by the National Library of Medicine. Some of the databases in the collection are MEDLINE and SDILINE

A. MEDCOM B. MEDLARS C. MED40 D. MEDONLINE