Which type of research is often referred to as a causal research because it attempts to answer what causes certain things to happen and to find a cause?

You have arrived on a scene in which one person has been shot in the head. As you approach the patient, you note that he is sitting up and talking with the police. He is holding a blood-soaked towel over the left temporal area of his head. Which one of the following is your initial action in caring for this patient?

A) Determine the need for a nasal or oral airway. B) Remove the towel to assess the gunshot wound. C) Take manual inline spinal stabilization. D) Obtain a pulse rate, respiratory rate, and blood pressure.

Which of the following chemical mediators are mostly involved with allergies and asthma?

A) histamines B) serotonin C) leukotrienes D) A and C