NR 569 MIDTERM EXAM ACTUAL 2026/2027 |
DIFFERENTIAL DIAGNOSIS ACUTE CARE
PRACTICUM | WEEKS 1-4 VERIFIED Q&A |
CHAMBERLAIN | PASS GUARANTEED - A+
GRADED QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF.
Core Domains
Diagnostic Reasoning and Clinical Decision-Making
History Taking and Documentation Standards
Diagnostic Accuracy and Test Interpretation
Respiratory System Differentials
Cardiovascular System Differentials
Gastrointestinal and Abdominal Differentials
Neurological and Musculoskeletal Differentials
Genitourinary and Renal Differentials
Infectious Disease and Fever Evaluation
Integrated Clinical Scenarios
Introduction
The NR 569 Midterm Exam assesses the acute care nurse
practitioner student's ability to formulate differential diagnoses
using evidence-based clinical reasoning frameworks. The exam
evaluates knowledge of diagnostic accuracy principles, history-
,taking models including SNApps and OLDCARTS, and system-
specific differential diagnosis across respiratory, cardiovascular,
gastrointestinal, neurological, and genitourinary presentations.
Multiple-choice and scenario-based questions emphasize clinical
judgment, diagnostic test interpretation, and decision-making in
acute care settings. Mastery of these domains ensures the provision
of safe, effective, and evidence-based diagnostic reasoning in
advanced practice nursing.
Section One: Questions 1–100
1. An ACNP is evaluating a patient with acute chest pain.
Which approach best reflects the hypothesis-driven method
of diagnostic reasoning?
A. Order a comprehensive metabolic panel and wait for results
before forming any clinical impression
B. Generate multiple competing diagnoses simultaneously based on
the initial presentation, then systematically rule them in or out
C. Rely solely on pattern recognition from previous similar patients
to arrive at a single diagnosis immediately
D. Refer the patient to a specialist before initiating any diagnostic
workup given the complexity
Correct answer: B
RATIONALE: The hypothesis-driven method involves
generating multiple diagnostic hypotheses early based on initial
data, then systematically testing each through focused assessment.
This reduces cognitive bias and anchoring, which are leading causes
of diagnostic error in acute care.
,2. A 55-year-old female presents with dyspnea. The Wells score
estimates PE pretest probability at 15%. A D-dimer returns at
450 ng/mL (negative below 500). What is the most appropriate
next step?
A. Discharge the patient since the negative D-dimer conclusively
rules out PE
B. Proceed directly to CTPA because the pretest probability is too
high for D-dimer
C. Calculate post-test probability using the negative likelihood ratio
to determine if PE is excluded
D. Repeat the D-dimer in 24 hours to confirm the negative result
before disposition
Correct answer: C
RATIONALE: Bayesian analysis requires combining pretest
probability with test characteristics (likelihood ratios) to determine
post-test probability. A D-dimer near the cutoff with moderate
pretest probability does not automatically exclude PE; the negative
likelihood ratio must be applied.
3. A 42-year-old female has 2 weeks of progressive fatigue,
myalgias, and low-grade fevers. She now presents with new
petechiae on her lower extremities and gum bleeding. Which
red flag most significantly changes diagnostic urgency?
A. Duration of symptoms extending beyond 10 days without
improvement
B. New onset bleeding manifestations suggesting a potential
hematologic emergency
, C. Presence of myalgias which could indicate an autoimmune
process
D. Low-grade fevers suggesting an undiagnosed infectious etiology
Correct answer: B
RATIONALE: New onset petechiae and gum bleeding suggest
thrombocytopenia or another hematologic emergency requiring
immediate evaluation. While the other findings are relevant, the
bleeding manifestations represent the most urgent red flag.
4. A nurse practitioner student is presenting a complex case
using the SNApps framework. After summarizing the history
and physical, the student narrows the differential to three
possibilities and then begins to compare and contrast the
clinical findings of each. Which component of SNApps is
being demonstrated?
A. Probe
B. Analyze
C. Plan
D. Select
Correct answer: B
RATIONALE: The "Analyze" step involves comparing and
contrasting the narrowed differential diagnoses by exploring the
pertinent positives and negatives that support or refute each
possibility.
5. When taking a history from a patient presenting with chest
pain, the nurse practitioner uses the OLDCARTS mnemonic.
DIFFERENTIAL DIAGNOSIS ACUTE CARE
PRACTICUM | WEEKS 1-4 VERIFIED Q&A |
CHAMBERLAIN | PASS GUARANTEED - A+
GRADED QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF.
Core Domains
Diagnostic Reasoning and Clinical Decision-Making
History Taking and Documentation Standards
Diagnostic Accuracy and Test Interpretation
Respiratory System Differentials
Cardiovascular System Differentials
Gastrointestinal and Abdominal Differentials
Neurological and Musculoskeletal Differentials
Genitourinary and Renal Differentials
Infectious Disease and Fever Evaluation
Integrated Clinical Scenarios
Introduction
The NR 569 Midterm Exam assesses the acute care nurse
practitioner student's ability to formulate differential diagnoses
using evidence-based clinical reasoning frameworks. The exam
evaluates knowledge of diagnostic accuracy principles, history-
,taking models including SNApps and OLDCARTS, and system-
specific differential diagnosis across respiratory, cardiovascular,
gastrointestinal, neurological, and genitourinary presentations.
Multiple-choice and scenario-based questions emphasize clinical
judgment, diagnostic test interpretation, and decision-making in
acute care settings. Mastery of these domains ensures the provision
of safe, effective, and evidence-based diagnostic reasoning in
advanced practice nursing.
Section One: Questions 1–100
1. An ACNP is evaluating a patient with acute chest pain.
Which approach best reflects the hypothesis-driven method
of diagnostic reasoning?
A. Order a comprehensive metabolic panel and wait for results
before forming any clinical impression
B. Generate multiple competing diagnoses simultaneously based on
the initial presentation, then systematically rule them in or out
C. Rely solely on pattern recognition from previous similar patients
to arrive at a single diagnosis immediately
D. Refer the patient to a specialist before initiating any diagnostic
workup given the complexity
Correct answer: B
RATIONALE: The hypothesis-driven method involves
generating multiple diagnostic hypotheses early based on initial
data, then systematically testing each through focused assessment.
This reduces cognitive bias and anchoring, which are leading causes
of diagnostic error in acute care.
,2. A 55-year-old female presents with dyspnea. The Wells score
estimates PE pretest probability at 15%. A D-dimer returns at
450 ng/mL (negative below 500). What is the most appropriate
next step?
A. Discharge the patient since the negative D-dimer conclusively
rules out PE
B. Proceed directly to CTPA because the pretest probability is too
high for D-dimer
C. Calculate post-test probability using the negative likelihood ratio
to determine if PE is excluded
D. Repeat the D-dimer in 24 hours to confirm the negative result
before disposition
Correct answer: C
RATIONALE: Bayesian analysis requires combining pretest
probability with test characteristics (likelihood ratios) to determine
post-test probability. A D-dimer near the cutoff with moderate
pretest probability does not automatically exclude PE; the negative
likelihood ratio must be applied.
3. A 42-year-old female has 2 weeks of progressive fatigue,
myalgias, and low-grade fevers. She now presents with new
petechiae on her lower extremities and gum bleeding. Which
red flag most significantly changes diagnostic urgency?
A. Duration of symptoms extending beyond 10 days without
improvement
B. New onset bleeding manifestations suggesting a potential
hematologic emergency
, C. Presence of myalgias which could indicate an autoimmune
process
D. Low-grade fevers suggesting an undiagnosed infectious etiology
Correct answer: B
RATIONALE: New onset petechiae and gum bleeding suggest
thrombocytopenia or another hematologic emergency requiring
immediate evaluation. While the other findings are relevant, the
bleeding manifestations represent the most urgent red flag.
4. A nurse practitioner student is presenting a complex case
using the SNApps framework. After summarizing the history
and physical, the student narrows the differential to three
possibilities and then begins to compare and contrast the
clinical findings of each. Which component of SNApps is
being demonstrated?
A. Probe
B. Analyze
C. Plan
D. Select
Correct answer: B
RATIONALE: The "Analyze" step involves comparing and
contrasting the narrowed differential diagnoses by exploring the
pertinent positives and negatives that support or refute each
possibility.
5. When taking a history from a patient presenting with chest
pain, the nurse practitioner uses the OLDCARTS mnemonic.
