NR 576 Mid Term Exam Questions with Verified Answers (Correct
Update)
Question 1: Person who has a false postivie
Answer: lead to further testing, can lead to further exposure to invasive testing, fear about having
tests and increased healthcare costs, being labeled with an inaccurate diagnosis and receiving
inappropriate treatment
Question 2: How is a negative predictive value correlated?
Answer: with prevalence
Question 3: When does a negative predictive value decrease
Answer: with prevalence and sensitivity/specificity do not vary.
Question 4: What does predictive values depend on?
Answer: prevalence of disease in population
Question 5: What is a pretest probability based on
Answer: suspected disease given the patients symptoms or clinical context
Question 6: What happens if the pretest probability is high
Answer: diagnostic testing may be warranted to clarify or confirm diagnosis.
Question 7: What test do you perform if you are concerned about bruising
Answer: CBC for the platelet count
Question 8: What test do you perform if you suspect infection for fever
Answer: CBC with ditterential to show neutrophil shift
Question 9: What test do you perform for inflammation or possible cancer if a patient has
unexplained weight loss
Answer: CBC; look at WBC
Question 10: What test would you perform if you were worried about cardaic dysrhythmias
Answer: CMP for electrolytes
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Update)
Question 1: Person who has a false postivie
Answer: lead to further testing, can lead to further exposure to invasive testing, fear about having
tests and increased healthcare costs, being labeled with an inaccurate diagnosis and receiving
inappropriate treatment
Question 2: How is a negative predictive value correlated?
Answer: with prevalence
Question 3: When does a negative predictive value decrease
Answer: with prevalence and sensitivity/specificity do not vary.
Question 4: What does predictive values depend on?
Answer: prevalence of disease in population
Question 5: What is a pretest probability based on
Answer: suspected disease given the patients symptoms or clinical context
Question 6: What happens if the pretest probability is high
Answer: diagnostic testing may be warranted to clarify or confirm diagnosis.
Question 7: What test do you perform if you are concerned about bruising
Answer: CBC for the platelet count
Question 8: What test do you perform if you suspect infection for fever
Answer: CBC with ditterential to show neutrophil shift
Question 9: What test do you perform for inflammation or possible cancer if a patient has
unexplained weight loss
Answer: CBC; look at WBC
Question 10: What test would you perform if you were worried about cardaic dysrhythmias
Answer: CMP for electrolytes
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