NR576-Differential Diagnosis in Adult-Gerontology Primary Care Midterm Exam Quiz

Question Reasoning
A nurse practitioner discovers a urinary tract infection in an older adult presenting with confusion and stops the
workup, later learning the patient had a subdural hematoma. Which bias best describes this error?
A. Search satisficing
B. Framing effect
C. Confirmation bias
D. Hindsight bias

Question 16 Analysis
Which of the following best defines pretest probability?
A. The proportion of positive tests that are true positives
B. The likelihood of disease before the test result is known, based on prevalence and clinical findings
C. The proportion of patients with disease who test positive
D. The number of new cases arising during a defined period

Question 17 Analysis
A test yields the same result on repeated administration but consistently reports values 15 units above the true
value. This test is best described as:
A. Reliable but not valid
B. Valid but not reliable
C. Both reliable and valid
D. Neither reliable nor valid