Infection is a leading cause of death.  An effective means of countering infections is environmental control measures.  Which of the following actions are environmental control measures? Select all that apply.

What effect does hyponatremia have on cells in the central nervous system?

A patient who has tested positive for the human immunodeficiency virus (HIV) arrives at the clinic with a report of fever, nonproductive cough, and fatigue. The patient’s CD4 count is 56 cells/cmL. How should the healthcare provider interpret these findings?

Which of the following are examples of the first line of defense? (Select all that apply).

Which of the following statements regarding apoptosis and necrosis is true?

Which phase of wound healing is predominately characterized by the development of scar tissue?

Your patient presents to the emergency department with complaints of numbness and tingling of the lips and fingers and diarrhea.  He appears to be restless and has a medical history that includes uncontrolled diabetes mellitus, hypertension, and renal failure. An EKG demonstrates peaked T waves. Which electrolyte abnormality should you suspect first?

Low levels of protein in the blood (hypoproteinemia) is a cause of edema because of a decrease in which pressure?

Which of the following is not a true form of cellular adaption, but occurs when cells begin to lose their organization, shape, and/or structure?

Receiving a vaccination against influenza is an example of which type of immunity?