What study design flaw may lead to a failure to achieve statistical significance?
A) Variables precisely defined
B) Adequate exposure to the intervention
C) Small sample size
D) Cross-sectional data collection
C
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With small samples, statistical power tends to be low, and the analyses may fail to show that the independent variable and the outcome are related—even when they are. Variables that are precisely defined and have adequate exposure to the intervention and cross-sectional data collection lead to statistical significance.
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The nurse is implementing a teaching plan for a client diagnosed with diabetes and his caregiver. Which of the following actions by the nurse reflects the cognitive domain? Select all that apply
A) Instruction on the correct administration of insulin B) Review of complications associated with diabetes C) Review of adverse reactions associated with insulin D) Review of how frequently to administer insulin E) Instruction on how to use a glucometer
Legal blindness is most commonly considered to be
a. blurred or double vision that cannot be corrected. b. corrected vision that is 20/100 or worse. c. corrected vision that is 20/200 or worse. d. inability to perceive any light.
A long-term care resident has limited use of the right side of his body, but is coherent at intervals. If this patient develops decubiti, which factor might the facility plead to prevent liability?
1. The resident must be confined to bed for prolonged periods of time because of his condition. 2. The resident is unable to obtain proper nutrition because of his refusal to eat. 3. Understaffing prevents the nurses from performing necessary passive range of motion exercises to the patient's affected side. 4. Nursing notes reveal that the patient is repositioned frequently, but somehow manages to return to the back-lying position.
A nurse is assisting in the preprocedure care of a patient scheduled for ECT (electroconvulsive therapy). Which nursing action must be taken immediately before the procedure?
a. The electrode sites are shaved and cleaned with a soap and water. b. A blood pressure cuff and the oxygen saturation probe are applied. c. A 12-lead electrocardiogram (ECG) is run and the strip placed in the chart. d. The patient signs an informed consent form allowing for the treatment.