Final Exam: NR 511/ NR511 (Latest 2026/ 2027 Update)
Differential Diagnosis and Primary Care Practicum Guide|
Questions & Answers| Grade A| 100% Correct (Verified
Solutions)- Chamberlain
THIS DOCUMENT CONTAINS:
NR 511/ NR511
Final Exam: NR 511/ NR511
Latest 2026/ 2027 Update
Differential Diagnosis
Primary Care Practicum Guide
Questions & Answers
,Question 1
The most cost-effective screening test for determining HIV status is which of the
following?
A. Western blot
B. Enzyme-linked immunosorbent assay
C. Viral load
D. Rapid blood test
Correct Answer: B. Enzyme-linked immunosorbent assay
Rationale: The ELISA (enzyme-linked immunosorbent assay) is the most cost-effective
and widely used screening test for HIV. It has high sensitivity and is used as the initial
screening test. If positive, it is confirmed with a Western blot or other confirmatory
testing. Viral load is used for monitoring disease progression, not initial screening.
Question 2
Which blood test is a nonspecific method and most helpful for evaluating the
severity and course of an inflammatory process?
A. Erythrocyte sedimentation rate (ESR)
B. C-reactive protein (CRP)
C. Complete blood count (CBC)
D. Procalcitonin
Correct Answer: B. C-reactive protein (CRP)
Rationale: CRP is an acute-phase reactant produced by the liver in response to
inflammation. It rises and falls more rapidly than ESR, making it more helpful for
evaluating the severity and course of an inflammatory process. It is nonspecific because
it does not indicate the source or cause of inflammation.
,Question 3
Cocaine acts as a stimulant by blocking the reuptake of which neurotransmitter?
A. Serotonin
B. Norepinephrine
C. Dopamine
D. Acetylcholine
Correct Answer: C. Dopamine
Rationale: Cocaine blocks the reuptake of dopamine, norepinephrine, and serotonin,
but its stimulant and addictive effects are primarily attributed to dopamine reuptake
inhibition in the reward pathway (mesolimbic system). This leads to increased
dopamine in the synaptic cleft, causing euphoria and stimulation.
Question 4
Mrs. Thomas was seen in the office complaining of pain and point tenderness in the
area of her elbow. The pain has increased following a day of gardening one week
ago. A physical finding that differentiates the diagnosis and is most consistent with
lateral epicondylitis (tennis elbow) is:
A. Pain at the elbow with resisted movements at the wrist and forearm
B. Pain with passive extension of the elbow
C. Swelling over the olecranon bursa
D. Decreased sensation in the ulnar nerve distribution
Correct Answer: A. Pain at the elbow with resisted movements at the wrist and
forearm
Rationale: Lateral epicondylitis (tennis elbow) is an overuse injury of the extensor
tendons at the lateral epicondyle. The classic finding is pain reproduced with resisted
wrist extension and forearm supination. Passive extension is typically not painful, and
swelling over the olecranon bursa suggests bursitis, not epicondylitis.
, Question 5
Which of the following statements concerning the musculoskeletal examination is
true?
A. The involved side should be examined first to compare with the uninvolved side
B. The uninvolved side should be examined initially and then compared to the involved
side
C. Only active range of motion needs to be assessed
D. Crepitus is a normal finding
Correct Answer: B. The uninvolved side should be examined initially and then
compared to the involved side
Rationale: Examining the uninvolved (normal) side first establishes a baseline for
normal range of motion, strength, and anatomy. This allows the clinician to compare
and identify abnormalities on the involved side. This approach is standard practice in
musculoskeletal examination.
Question 6
Which of the following signs or symptoms indicate an inflammatory etiology to
musculoskeletal pain?
A. Morning stiffness
B. Pain worse with activity
C. Night pain
D. Morning pain that improves with activity
Correct Answer: A. Morning stiffness
Rationale: Inflammatory musculoskeletal conditions (e.g., rheumatoid arthritis) are
characterized by morning stiffness lasting more than 30 minutes that improves with
activity. Mechanical pain (e.g., osteoarthritis) is typically worse with activity and
improves with rest. Night pain may suggest malignancy or infection.
Differential Diagnosis and Primary Care Practicum Guide|
Questions & Answers| Grade A| 100% Correct (Verified
Solutions)- Chamberlain
THIS DOCUMENT CONTAINS:
NR 511/ NR511
Final Exam: NR 511/ NR511
Latest 2026/ 2027 Update
Differential Diagnosis
Primary Care Practicum Guide
Questions & Answers
,Question 1
The most cost-effective screening test for determining HIV status is which of the
following?
A. Western blot
B. Enzyme-linked immunosorbent assay
C. Viral load
D. Rapid blood test
Correct Answer: B. Enzyme-linked immunosorbent assay
Rationale: The ELISA (enzyme-linked immunosorbent assay) is the most cost-effective
and widely used screening test for HIV. It has high sensitivity and is used as the initial
screening test. If positive, it is confirmed with a Western blot or other confirmatory
testing. Viral load is used for monitoring disease progression, not initial screening.
Question 2
Which blood test is a nonspecific method and most helpful for evaluating the
severity and course of an inflammatory process?
A. Erythrocyte sedimentation rate (ESR)
B. C-reactive protein (CRP)
C. Complete blood count (CBC)
D. Procalcitonin
Correct Answer: B. C-reactive protein (CRP)
Rationale: CRP is an acute-phase reactant produced by the liver in response to
inflammation. It rises and falls more rapidly than ESR, making it more helpful for
evaluating the severity and course of an inflammatory process. It is nonspecific because
it does not indicate the source or cause of inflammation.
,Question 3
Cocaine acts as a stimulant by blocking the reuptake of which neurotransmitter?
A. Serotonin
B. Norepinephrine
C. Dopamine
D. Acetylcholine
Correct Answer: C. Dopamine
Rationale: Cocaine blocks the reuptake of dopamine, norepinephrine, and serotonin,
but its stimulant and addictive effects are primarily attributed to dopamine reuptake
inhibition in the reward pathway (mesolimbic system). This leads to increased
dopamine in the synaptic cleft, causing euphoria and stimulation.
Question 4
Mrs. Thomas was seen in the office complaining of pain and point tenderness in the
area of her elbow. The pain has increased following a day of gardening one week
ago. A physical finding that differentiates the diagnosis and is most consistent with
lateral epicondylitis (tennis elbow) is:
A. Pain at the elbow with resisted movements at the wrist and forearm
B. Pain with passive extension of the elbow
C. Swelling over the olecranon bursa
D. Decreased sensation in the ulnar nerve distribution
Correct Answer: A. Pain at the elbow with resisted movements at the wrist and
forearm
Rationale: Lateral epicondylitis (tennis elbow) is an overuse injury of the extensor
tendons at the lateral epicondyle. The classic finding is pain reproduced with resisted
wrist extension and forearm supination. Passive extension is typically not painful, and
swelling over the olecranon bursa suggests bursitis, not epicondylitis.
, Question 5
Which of the following statements concerning the musculoskeletal examination is
true?
A. The involved side should be examined first to compare with the uninvolved side
B. The uninvolved side should be examined initially and then compared to the involved
side
C. Only active range of motion needs to be assessed
D. Crepitus is a normal finding
Correct Answer: B. The uninvolved side should be examined initially and then
compared to the involved side
Rationale: Examining the uninvolved (normal) side first establishes a baseline for
normal range of motion, strength, and anatomy. This allows the clinician to compare
and identify abnormalities on the involved side. This approach is standard practice in
musculoskeletal examination.
Question 6
Which of the following signs or symptoms indicate an inflammatory etiology to
musculoskeletal pain?
A. Morning stiffness
B. Pain worse with activity
C. Night pain
D. Morning pain that improves with activity
Correct Answer: A. Morning stiffness
Rationale: Inflammatory musculoskeletal conditions (e.g., rheumatoid arthritis) are
characterized by morning stiffness lasting more than 30 minutes that improves with
activity. Mechanical pain (e.g., osteoarthritis) is typically worse with activity and
improves with rest. Night pain may suggest malignancy or infection.
