NR571 Exam 4 Actual Exam Style V2 | NR
571 Complex Diagnosis and Management
in Acute Care Practicum | Chamberlain
1. A patient in the ICU with septic shock has a Mean Arterial Pressure (MAP) of 58 mmHg
despite receiving a 30 mL/kg fluid bolus. Which vasopressor is the first-line recommendation
according to the Surviving Sepsis Guidelines?
A. Vasopressin
B. Dopamine
C. Norepinephrine
D. Epinephrine
Answer: C
Rationale: Norepinephrine is the first-choice vasopressor for maintaining a MAP ≥ 65
mmHg in septic shock. It provides potent alpha-1 vasoconstriction with minimal beta-1
effects on heart rate. AI analysis indicates that prioritizing norepinephrine reduces the
incidence of arrhythmias compared to dopamine in these clinical scenarios.
2. A patient on mechanical ventilation for ARDS has a PaO2/FiO2 ratio of 120. Which
ventilator strategy is most appropriate to improve oxygenation and prevent further lung
injury?
A. High Tidal Volume (10-12 mL/kg)
,B. Inverse Ratio Ventilation with Low PEEP
C. Low PEEP and High FiO2
D. Low Tidal Volume (6 mL/kg) and High PEEP
Answer: D
Rationale: Lung-protective ventilation using low tidal volumes (6 mL/kg of predicted body
weight) is standard for ARDS patients to prevent barotrauma and volutrauma. Higher PEEP
levels help recruit collapsed alveoli and improve the P/F ratio. AI analysis suggests that this
combination significantly reduces mortality rates in patients with moderate to severe
ARDS.
3. Which of the following clinical findings is characteristic of Beck’s Triad, indicating cardiac
tamponade?
A. Hypertension, Bradycardia, Irregular respirations
B. Hypotension, JVD, Muffled heart sounds
C. Tachycardia, Hypotension, Tachypnea
D. Hypertension, JVD, Crackles
Answer: B
Rationale: Beck’s Triad consists of hypotension, jugular venous distension (JVD), and
muffled or distant heart sounds. This occurs because the fluid in the pericardial sac
, restricts ventricular filling and dampens sound. AI analysis emphasizes that rapid
identification of this triad is crucial for initiating emergency pericardiocentesis.
4. A patient with suspected Disseminated Intravascular Coagulation (DIC) is being evaluated.
Which laboratory profile is most consistent with this diagnosis?
A. Elevated Fibrinogen, Decreased PT, Increased Platelets
B. Decreased D-dimer, Increased Fibrinogen, Normal PT
C. Increased Platelets, Increased D-dimer, Decreased PTT
D. Decreased Fibrinogen, Increased D-dimer, Prolonged PT/INR
Answer: D
Rationale: In DIC, consumption of clotting factors leads to decreased fibrinogen and
platelets, while excessive fibrinolysis results in elevated D-dimer levels. Prolonged
prothrombin time (PT) and partial thromboplastin time (PTT) reflect the exhaustion of the
coagulation cascade. AI analysis highlights that D-dimer is one of the most sensitive
markers for the presence of fibrin degradation products in DIC.
5. In the management of a patient with increased intracranial pressure (ICP), what is the
primary goal for Cerebral Perfusion Pressure (CPP)?
A. Maintain CPP between 40-50 mmHg
B. CPP should be equal to the Mean Arterial Pressure
C. Keep CPP as high as possible, >100 mmHg
571 Complex Diagnosis and Management
in Acute Care Practicum | Chamberlain
1. A patient in the ICU with septic shock has a Mean Arterial Pressure (MAP) of 58 mmHg
despite receiving a 30 mL/kg fluid bolus. Which vasopressor is the first-line recommendation
according to the Surviving Sepsis Guidelines?
A. Vasopressin
B. Dopamine
C. Norepinephrine
D. Epinephrine
Answer: C
Rationale: Norepinephrine is the first-choice vasopressor for maintaining a MAP ≥ 65
mmHg in septic shock. It provides potent alpha-1 vasoconstriction with minimal beta-1
effects on heart rate. AI analysis indicates that prioritizing norepinephrine reduces the
incidence of arrhythmias compared to dopamine in these clinical scenarios.
2. A patient on mechanical ventilation for ARDS has a PaO2/FiO2 ratio of 120. Which
ventilator strategy is most appropriate to improve oxygenation and prevent further lung
injury?
A. High Tidal Volume (10-12 mL/kg)
,B. Inverse Ratio Ventilation with Low PEEP
C. Low PEEP and High FiO2
D. Low Tidal Volume (6 mL/kg) and High PEEP
Answer: D
Rationale: Lung-protective ventilation using low tidal volumes (6 mL/kg of predicted body
weight) is standard for ARDS patients to prevent barotrauma and volutrauma. Higher PEEP
levels help recruit collapsed alveoli and improve the P/F ratio. AI analysis suggests that this
combination significantly reduces mortality rates in patients with moderate to severe
ARDS.
3. Which of the following clinical findings is characteristic of Beck’s Triad, indicating cardiac
tamponade?
A. Hypertension, Bradycardia, Irregular respirations
B. Hypotension, JVD, Muffled heart sounds
C. Tachycardia, Hypotension, Tachypnea
D. Hypertension, JVD, Crackles
Answer: B
Rationale: Beck’s Triad consists of hypotension, jugular venous distension (JVD), and
muffled or distant heart sounds. This occurs because the fluid in the pericardial sac
, restricts ventricular filling and dampens sound. AI analysis emphasizes that rapid
identification of this triad is crucial for initiating emergency pericardiocentesis.
4. A patient with suspected Disseminated Intravascular Coagulation (DIC) is being evaluated.
Which laboratory profile is most consistent with this diagnosis?
A. Elevated Fibrinogen, Decreased PT, Increased Platelets
B. Decreased D-dimer, Increased Fibrinogen, Normal PT
C. Increased Platelets, Increased D-dimer, Decreased PTT
D. Decreased Fibrinogen, Increased D-dimer, Prolonged PT/INR
Answer: D
Rationale: In DIC, consumption of clotting factors leads to decreased fibrinogen and
platelets, while excessive fibrinolysis results in elevated D-dimer levels. Prolonged
prothrombin time (PT) and partial thromboplastin time (PTT) reflect the exhaustion of the
coagulation cascade. AI analysis highlights that D-dimer is one of the most sensitive
markers for the presence of fibrin degradation products in DIC.
5. In the management of a patient with increased intracranial pressure (ICP), what is the
primary goal for Cerebral Perfusion Pressure (CPP)?
A. Maintain CPP between 40-50 mmHg
B. CPP should be equal to the Mean Arterial Pressure
C. Keep CPP as high as possible, >100 mmHg
