Forced expiratory effort against a closed airway, such as when an individual holds his/her breath and tightens the muscles in a concerted, strenuous effort is:

Injury to primary motor cortex on one side of the brain could cause:

a. Contralateral paralysis b. Ipsilateral paralysis c. Bilateral paralysis

You have run a 12-lead ECG on Ms. Reilly, a patient in the cardiac care unit of the hospital where you work. A portion of the V1 tracing is shown here. What cardiac condition would you suspect based on this tracing? 

A. Left bundle branch block  B. Left ventricular hypertrophy  C. Right bundle branch block  D. Complete AV block