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Which is not true of complement?

The emergence of new infectious diseases is probably due to all of the following except:

What type of acquired immunity is obtained after receiving the hepatitis B vaccine?

Which white blood cell phagocytizes necrotic tissue and is the most abundant in the blood?

The nurse is caring for a client admitted with a diagnosis of acute kidney injury. The nurse reviews the client’s most recent lab reports and finds that the client’s magnesium level is high. What is the priority assessment finding for this client?  

A nurse is caring for a client who is ambulating for the first time after surgery. Upon standing, the client reports dizziness and faintness. The client’s blood pressure is 90/50 mmHg. What is the name for this condition?

The nurse is preparing to administer 20 mEq of potassium chloride to a client who has been vomiting. What should the nurse explain to the client about the role of potassium in the human body?

The nurse is caring for a client who is experiencing an increased level of aldosterone secretion. The nurse anticipates that the client may develop:

A nursing student is studying the physiology of the thirst mechanism. Which structure has chemoreceptors that respond to changes in extracellular fluid, directly affecting the sensation of thirst?

A student is performing a physical assessment with the instructor. The instructor asks “what pulse is located in the groove between the medial malleolus and the Achilles tendon?” Which is the correct response?