NR511 Week 2 CEA Exam Prep: 200 Practice
Questions with Rationales Covering
Diagnostic Reasoning, Cardiology,
Pulmonology, Endocrinology, Dermatology,
Orthopedics, Neurology, and Pharmacology
for FNP Students
Section 1: Diagnostic Test Characteristics &
Clinical Reasoning
Question 1: A diagnostic test is used in a
sample of 1000 patients. 500 of these patients
have the disease, while 500 do not. Of those
500 patients without the disease, 30 test
positive, and 470 test negative. What is the
specificity of the test?
A. 30/500
B. 470/500
,C. 500/1000
D. 30/1000
Correct ☑VERIFIED ANSWER: B. 470/500
Rationale: Specificity is the proportion of
patients without the disease who correctly test
negative. It is calculated as true negatives
divided by the total number of people without
the disease (TN / (TN + FP)) .
Question 2: The Positive Predictive Value (PPV)
of a test refers to which of the following?
A. The proportion of patients with a negative
test who do not have the disease
B. The proportion of patients with a positive
test who have the disease
C. The ability of a test to correctly identify those
without the disease
D. The consistency of a test result
,Correct ☑VERIFIED ANSWER: B. The
proportion of patients with a positive test who
have the disease
Rationale: PPV ☑VERIFIED ANSWERs the
question: "If the test is positive, what is the
likelihood the patient actually has the
disease?" .
Question 3: A low pretest probability of disease
may lead to which of the following?
A. High positive predictive value
B. Low positive predictive value and more false-
positive results
C. Fewer false-positive results
D. Increased sensitivity
Correct ☑VERIFIED ANSWER: B. Low positive
predictive value and more false-positive
results
Rationale: PPV is heavily influenced by disease
, prevalence. In a population with low disease
prevalence, even a test with good specificity
will generate more false positives, lowering the
PPV .
Section 2: Cardiovascular & Respiratory
Disorders
Question 4: A 71-year-old female patient is
seen during a post-hospital discharge visit
following a CHF exacerbation. The hospitalist
documented a "new murmur." During which
phase of the cardiac cycle would the nurse
practitioner anticipate auscultation of an S3 or
S4 heart sound in this patient?
A. Systole
B. Diastole
C. Early systole
D. Mid-systole
Questions with Rationales Covering
Diagnostic Reasoning, Cardiology,
Pulmonology, Endocrinology, Dermatology,
Orthopedics, Neurology, and Pharmacology
for FNP Students
Section 1: Diagnostic Test Characteristics &
Clinical Reasoning
Question 1: A diagnostic test is used in a
sample of 1000 patients. 500 of these patients
have the disease, while 500 do not. Of those
500 patients without the disease, 30 test
positive, and 470 test negative. What is the
specificity of the test?
A. 30/500
B. 470/500
,C. 500/1000
D. 30/1000
Correct ☑VERIFIED ANSWER: B. 470/500
Rationale: Specificity is the proportion of
patients without the disease who correctly test
negative. It is calculated as true negatives
divided by the total number of people without
the disease (TN / (TN + FP)) .
Question 2: The Positive Predictive Value (PPV)
of a test refers to which of the following?
A. The proportion of patients with a negative
test who do not have the disease
B. The proportion of patients with a positive
test who have the disease
C. The ability of a test to correctly identify those
without the disease
D. The consistency of a test result
,Correct ☑VERIFIED ANSWER: B. The
proportion of patients with a positive test who
have the disease
Rationale: PPV ☑VERIFIED ANSWERs the
question: "If the test is positive, what is the
likelihood the patient actually has the
disease?" .
Question 3: A low pretest probability of disease
may lead to which of the following?
A. High positive predictive value
B. Low positive predictive value and more false-
positive results
C. Fewer false-positive results
D. Increased sensitivity
Correct ☑VERIFIED ANSWER: B. Low positive
predictive value and more false-positive
results
Rationale: PPV is heavily influenced by disease
, prevalence. In a population with low disease
prevalence, even a test with good specificity
will generate more false positives, lowering the
PPV .
Section 2: Cardiovascular & Respiratory
Disorders
Question 4: A 71-year-old female patient is
seen during a post-hospital discharge visit
following a CHF exacerbation. The hospitalist
documented a "new murmur." During which
phase of the cardiac cycle would the nurse
practitioner anticipate auscultation of an S3 or
S4 heart sound in this patient?
A. Systole
B. Diastole
C. Early systole
D. Mid-systole
