Sensitivity and specificity are important criteria for screening and diagnostic instruments. What is specificity?
A) Different method of measuring the same attributes yielding similar results
B) Ability to differentiate the construct being measured from other similar concepts
C) Instrument's ability to identify a case correctly
D) Instrument's ability to identify noncases correctly.
D
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The nurse learns that an elderly patient with ill-fitting dentures has been using an over-the-counter preparation for a gum sore over the last month. What instruction should the nurse give this patient?
1. Make an appointment to see the physician. 2. Continue to use the preparation. 3. Change the preparation. 4. Stop wearing the dentures.
Which of the following statements comparing childhood cancer with adult cancer is true?
a. There is no difference in childhood cancer and adult cancer. b. Childhood cancers usually arise from primitive embryonic tissue and adult malignancies are of epithelial origin. c. Routine screens catch childhood cancers more often than adult cancers. d. Exposure to carcinogens is related in a stronger way to childhood cancers than to adult cancers.
The research method based on documentation of sources used to retroactively study events or people is
a. ethnography. b. phenomenology. c. historical. d. grounded theory
The speed with which defibrillation is performed in cardiac arrest is the key to success.
Answer the following statement true (T) or false (F)