You are called for a 72-year-old widower who lives with his grandson in a nice middle-class neighborhood. He is bleeding from a head wound, and he tells you that he fell in the shower. You notice multiple bruises of various colors on his arms and that the room where he stays is messy and has a foul smell. His grandson tells you that he does not need to go to the hospital. You should suspect he:

A 6-year-old male is in severe respiratory distress with inspiratory stridor. He has pale, moist skin, with cyanosis noted around his mouth. The patient is very lethargic and cannot hold his head up. His mother is panicked and reports that he has a history of asthma. Breath sounds are diminished and his vital signs are pulse, 162 beats/min; respirations, 40 breaths/min; blood pressure, 122/66 mmHg; and SpO2, 81%. What would your immediate action be?

A) Apply a nonrebreather mask with 15 lpm oxygen B) Insert an oral airway and ventilate with a bag-valve mask C) Start positive pressure ventilation D) Administer the patient's albuterol MDI and provide immediate transport

Also known as the visceral peritoneum, the ________ of the alimentary canal wall secretes serous fluid to keep other organs from sticking to the structures of the alimentary canal.

A. muscular layer B. serosa C. alimentary layer D. submucosa E. mucosa