Why would a researcher need to be concerned about the administration of a pretest and posttest in a research study?
a. It is a threat to external validity.
b. It is a threat to internal validity.
c. It is a form of selection bias.
d. It is a form of maturation
b. It is a threat to internal validity.
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Family members should participate in cardiac rehabilitation because they will
A) be solely responsible for preparing low fat, low calorie meals. B) have to take the patient's blood pressure at home. C) have to convince the patient to stop smoking. D) learn psychological interventions to help the patient get well.
A patient who has been diagnosed with gestational hypertension asks the nurse what caused it. The nurse explains that there are many theories, but the cause is:
a. too much salt. b. a toxin. c. unknown. d. diabetes.
What is definition of a toxoid that can be used for vaccination?
a. A vaccine containing antibodies that were produced by other animals in response to the administration of human white blood cells. b. A vaccine that contains a modified toxin that an organism produces or a small part of the actual organism. c. A vaccine designed to be toxic to or inhibit the excessive functioning of the immune system. d. A vaccine that contains artificially created antibodies that will generate passive immunity.
In an attempt at reducing risk in the workplace, the nurse manager emphasizes which of the following nursing interventions to the staff?
1. Assess vital signs only once daily. 2. Raise the temperature in the client's room. 3. Wash hands. 4. Wear a mask for all client care.