The lung is divided into anatomical regions. The right lung has ____ lobes and the left lung has _____ lobes

You are assessing a 70-year-old male who complains of pain in both of his legs. He is conscious and alert, has a blood pressure of 160/90 mm Hg, a pulse rate of 110 beats/min, and respirations of 14 breaths/min and unlabored. Further assessment reveals edema to both of his feet and legs and jugular venous distention. This patient's primary problem is MOST likely:

A) left heart failure. B) right heart failure. C) pulmonary edema. D) chronic hypertension.

Apneic episodes in a premature neonate can be caused by all of the following EXCEPT:

a. epiglottitis. b. immature central nervous system. c. immature airway receptors. d. immature chemoreceptors.