NR 511 MIDTERM EXAM LATEST UPDATE 2026 /
NR511 MIDTERM EXAM STUDY GUIDE
CHAMBERLAIN
In the table above, what is the sensitivity of the Prostate Specific
Antigen (PSA) for detecting prostate cancer? -ANS>>
Sensitivity is the proportion of client with the disease that have a
positive result; it is the number of true positives divided by the total
number of clients who have the disease.
A diagnostic test is used in a sample of 1000 clients. 500 of these
clients have the disease, while 500 do not. Of those 500 clients
without the disease, 30 tests positive, and 470 tests negative.
What is the specificity of the test? -ANS>>
Specificity: proportion of 'test negative' of total without the disease;
the number of true negatives over all negatives. In this example,
500/1000 clients have the disease; 30 test positive, and 470 test
negative.
The Positive Predictive Value (PPV) of a test refers to which of the
following? -ANS>>Test PPV refers to the proportion of clients with
a positive test who have the disease
,Which of the following depends on the prevalence of the disease?
-ANS>>Predictive values depend on the prevalence of disease in
the population whereas sensitivity and specificity are intrinsic
properties of the test. Reliability refers to the consistency or
stability of a measure.
A low pretest probability of disease may lead to which of the
following? -ANS>>Low positive predictive value and more false-
positive results
Positive predictive value increases with prevalence; thus, low
prevalence value yields a low positive predictive value and implies
a high false-positive rate. Negative predictive value decreases
with prevalence, and sensitivity/specificity do not vary.
If you strongly suspect that a client is positive for a specific
condition but tests negative, the negative result may be: -
ANS>>False-negative test results due to a low negative
predictive value.
Your clinical suspicion is equivalent to pre-test probability and
high prevalence of a population. Negative predictive value is
,inversely correlated with prevalence. Your clinical suspicion is a
low negative predictive value, suggesting a false-negative.
A client has a positive rapid strep test. Knowing nothing else, how
likely is it that the client has strep pharyngitis? -ANS>>Cannot be
determined from this information.
Without a pre-test probability the test result cannot be interpreted
accurately.
Which test(s) provide data relevant to the chief complaint: Fever -
ANS>>CBC
Which test(s) provide data relevant to the chief complaint:
Unexplained bruising -ANS>>CBC
hich test(s) provide data relevant to the chief complaint: Fatigue -
ANS>>CBC, CMP
Which test(s) provide data relevant to the chief complaint: Cardiac
dysrhythmias -ANS>>CMP, electrolyte abnormalities
, Which test(s) provide data relevant to the chief complaint:
Unexplained weight loss -ANS>>CBC, CMP Check WBC for
inflammation or possible cancer, CMP for glucose, liver or kidney
abnormalities
Which test(s) provide data relevant to the chief complaint: Edema
-ANS>>CMP
SNAPPS -ANS>>Summarize the history and findings
Narrow the differential diagnosis to two or three possibilities
Analyze the differential by comparing and contrasting the
possibilities
Probe the preceptor by asking questions about alternative
approaches or uncertainties
Plan the management of the client's health issues
Select an issue from the case for self-directed learning
Pruritis -ANS>>-Pruritus is the sensation of itching accompanied
by the urge to scratch and can be considered as acute or chronic.
It can be a symptom of an actual dermatological issue or it can be
a symptom of another disease or
NR511 MIDTERM EXAM STUDY GUIDE
CHAMBERLAIN
In the table above, what is the sensitivity of the Prostate Specific
Antigen (PSA) for detecting prostate cancer? -ANS>>
Sensitivity is the proportion of client with the disease that have a
positive result; it is the number of true positives divided by the total
number of clients who have the disease.
A diagnostic test is used in a sample of 1000 clients. 500 of these
clients have the disease, while 500 do not. Of those 500 clients
without the disease, 30 tests positive, and 470 tests negative.
What is the specificity of the test? -ANS>>
Specificity: proportion of 'test negative' of total without the disease;
the number of true negatives over all negatives. In this example,
500/1000 clients have the disease; 30 test positive, and 470 test
negative.
The Positive Predictive Value (PPV) of a test refers to which of the
following? -ANS>>Test PPV refers to the proportion of clients with
a positive test who have the disease
,Which of the following depends on the prevalence of the disease?
-ANS>>Predictive values depend on the prevalence of disease in
the population whereas sensitivity and specificity are intrinsic
properties of the test. Reliability refers to the consistency or
stability of a measure.
A low pretest probability of disease may lead to which of the
following? -ANS>>Low positive predictive value and more false-
positive results
Positive predictive value increases with prevalence; thus, low
prevalence value yields a low positive predictive value and implies
a high false-positive rate. Negative predictive value decreases
with prevalence, and sensitivity/specificity do not vary.
If you strongly suspect that a client is positive for a specific
condition but tests negative, the negative result may be: -
ANS>>False-negative test results due to a low negative
predictive value.
Your clinical suspicion is equivalent to pre-test probability and
high prevalence of a population. Negative predictive value is
,inversely correlated with prevalence. Your clinical suspicion is a
low negative predictive value, suggesting a false-negative.
A client has a positive rapid strep test. Knowing nothing else, how
likely is it that the client has strep pharyngitis? -ANS>>Cannot be
determined from this information.
Without a pre-test probability the test result cannot be interpreted
accurately.
Which test(s) provide data relevant to the chief complaint: Fever -
ANS>>CBC
Which test(s) provide data relevant to the chief complaint:
Unexplained bruising -ANS>>CBC
hich test(s) provide data relevant to the chief complaint: Fatigue -
ANS>>CBC, CMP
Which test(s) provide data relevant to the chief complaint: Cardiac
dysrhythmias -ANS>>CMP, electrolyte abnormalities
, Which test(s) provide data relevant to the chief complaint:
Unexplained weight loss -ANS>>CBC, CMP Check WBC for
inflammation or possible cancer, CMP for glucose, liver or kidney
abnormalities
Which test(s) provide data relevant to the chief complaint: Edema
-ANS>>CMP
SNAPPS -ANS>>Summarize the history and findings
Narrow the differential diagnosis to two or three possibilities
Analyze the differential by comparing and contrasting the
possibilities
Probe the preceptor by asking questions about alternative
approaches or uncertainties
Plan the management of the client's health issues
Select an issue from the case for self-directed learning
Pruritis -ANS>>-Pruritus is the sensation of itching accompanied
by the urge to scratch and can be considered as acute or chronic.
It can be a symptom of an actual dermatological issue or it can be
a symptom of another disease or
