The nurse notes that which type of receptor increases in density toward the periphery of the retina and allows vision in dim light?
a. cones c. macula lutea
b. fovea d. rods
D
The two types of receptors are: rods for vision in dim light, and cones for daytime or color vision.
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A client who is a victim of a penetrating trauma has bowel loops protruding through the abdominal wall. Which of these actions should the nurse take FIRST?
a. Administer narcotics if indicated by pain level expressed by the client. b. Cover the exposed intestine with saline-soaked gauze. c. Insert a large-bore intravenous (IV) access. d. Prepare the client for a peritoneal lavage procedure.
The patient with acute myelogenous leukemia (AML) asks why he is making more WBCs when he already has so many. The nurse clarifies that the large number of leukemic white cells he al-ready has:
a. are not as effective as normal white cells would be. b. protect against infection. c. attempt to take over the functions of RBCs. d. are produced by the lymphatic system.
You need to put on a face mask. You should:
a. Let the person see your face first b. Enter the room with the mask on c. Put the mask on, and then tell the person your name d. Wash your face first
A patient who is planning a diet questions the nurse about the role of sugar in the development of heart disease. What response by the nurse is most appropriate?
A) "Salt and not sugar is a dietary culprit in the development of cardiovascular disease." B) "Sugar is associated with the development of diabetes and not cardiovascular disease." C) "Increased intake of sugar is associated with elevated cholesterol levels." D) "The only way that sugar will cause heart disease is if you gain too much weight."