Which will the researcher use to display the concepts and relationships in a theoretical framework?
a. Construct
b. Graph
c. Model
d. Theory
ANS: C
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Oxygen saturation of left atrial blood is normally between 96% and 99%. What is the explanation for less than 100% saturation?
a. As blood passes to the alveolar–capillary membrane, a predicted percentage of hemoglobin will not bind with oxygen. b. During normal respiration, the majority of alveoli are not expanded. c. Venous blood from the bronchial circulation is returned to the left atrium. d. A small amount of blood leaks from the right atrium to the left atrium with each ventricular contraction.
A patient will have an incision in the lower left abdomen. Which intervention by the nurse will help decrease discomfort in the incisional area when she coughs postoperatively?
a. Apply a splint directly over the lower abdomen. b. Keep the patient flat with feet flexed. c. Turn her on her right side. d. Apply a splint above and below the incision.
The client will be using transcutaneous electrical nerve stimulation (TENS) for the treatment of lower back pain. What does the nurse explain to the client that this will do for his back pain?
A) Deliver a burst of electricity to the skin and underlying nerves, decreasing pain B) Causes decrease in vasodilation to decrease swelling C) Applies heat to the skin and subcutaneous tissues D) Interrupts the pain pathways in the spinal cord
When selecting appropriate nursing interventions, which of the following should the nurse consider?
a. Reduce costs. b. Select interventions that follow written physician orders. c. Select interventions that take into consideration the client's values or beliefs. d. Chose interventions that are difficult for the client while ill but will aid in enhancing the client's abilities.