SAEM M4 Curriculum 2: Questions With
Complete Solutions 2026/2027 Comprehensive
Examination.
Instructions: This examination consists of exactly 50 questions across four emergency medicine
sub-specialty domains. Select the best answer(s) for each question. All calculation-based
questions require showing your work.
DOMAIN 1: Cardiovascular, Toxicology & Electrolyte Emergencies (12
Questions)
Sub-Topic: Norepinephrine in Septic Shock (3 Questions)
Question 1 (Multiple Choice)
A 68-year-old male presents with fever, altered mental status, and hypotension (BP 72/48
mmHg). Blood cultures are pending. He is diagnosed with septic shock. Which of the following
best describes the primary pharmacologic mechanism of norepinephrine as the first-line
vasopressor in this patient?
A) It is a pure beta-1 agonist that increases cardiac contractility without affecting systemic
vascular resistance
B) It is a potent alpha-1 agonist that causes peripheral vasoconstriction and increases mean
arterial pressure
C) It is a pure dopaminergic agonist that selectively dilates renal and splanchnic vasculature
D) It is a phosphodiesterase inhibitor that increases intracellular cyclic AMP in cardiac myocytes
[CORRECT: B]
Rationale: Norepinephrine is the first-line vasopressor for undifferentiated septic shock per the
Surviving Sepsis Campaign guidelines. Its primary mechanism is potent alpha-1 adrenergic
receptor agonism, causing peripheral vasoconstriction of both arterial and venous beds, thereby
increasing systemic vascular resistance and mean arterial pressure (MAP). While norepinephrine
has weak beta-1 activity, its therapeutic efficacy in septic shock derives predominantly from
,alpha-1 mediated vasoconstriction, making it superior to dopamine (which causes more
arrhythmias) and phenylephrine (which lacks inotropic support). This aligns with SAEM M4
Curriculum 2 objectives on septic shock hemodynamic management.
Question 2 (Multiple Choice)
A 55-year-old female with urosepsis remains hypotensive (MAP 58 mmHg) despite 30 mL/kg
crystalloid resuscitation. The emergency physician initiates norepinephrine infusion. Which
physiologic effect is MOST responsible for the restoration of adequate perfusion pressure?
A) Increased heart rate through direct sinoatrial node stimulation
B) Peripheral vasoconstriction via alpha-1 receptor activation
C) Bronchodilation via beta-2 receptor activation
D) Increased renal blood flow through dopamine-1 receptor stimulation
[CORRECT: B]
Rationale: The SAEM M4 Curriculum 2 emphasizes that norepinephrine's efficacy in septic
shock is primarily attributable to its potent alpha-1 adrenergic receptor agonism. In septic
shock, profound vasodilation and capillary leak reduce effective circulating volume and systemic
vascular resistance. Norepinephrine restores vascular tone through alpha-1 mediated smooth
muscle contraction in peripheral arterioles, increasing afterload and MAP. This mechanism
directly addresses the pathophysiologic deficit in distributive shock. The weak beta-1 activity
provides modest inotropic support, but the alpha-1 vasoconstriction is the dominant
hemodynamic effect.
Question 3 (Select-All-That-Apply)
A 72-year-old male with pneumonia-induced septic shock requires vasopressor support.
Regarding norepinephrine as the recommended first-line agent, which of the following
statements are correct?
A) Norepinephrine primarily acts as an alpha-1 adrenergic agonist, causing peripheral
vasoconstriction
B) Norepinephrine increases mean arterial pressure by increasing systemic vascular resistance
C) Norepinephrine should be titrated to maintain a MAP of at least 65 mmHg
,D) Norepinephrine causes significant tachycardia through potent beta-1 stimulation at standard
doses
E) Norepinephrine is preferred over dopamine due to lower risk of arrhythmias
[CORRECT: A, B, C, E]
Rationale: Per SAEM M4 Curriculum 2 septic shock objectives: (A) Norepinephrine is a potent
alpha-1 agonist—this is its defining pharmacologic characteristic. (B) The increase in MAP is
achieved primarily through increased systemic vascular resistance via peripheral
vasoconstriction. (C) The Surviving Sepsis Campaign recommends targeting MAP ≥65 mmHg in
most septic shock patients. (E) Multiple randomized trials (including SOAP II) demonstrate
norepinephrine causes significantly fewer arrhythmias than dopamine, establishing it as the
preferred first-line agent. (D) is incorrect because norepinephrine has weak beta-1 activity
compared to epinephrine or dobutamine; significant tachycardia is not a hallmark of
norepinephrine at standard infusion rates.
Sub-Topic: Severe Hyperkalemia ECG & Management (3 Questions)
Question 4 (Multiple Choice)
A 58-year-old male with end-stage renal disease missed dialysis and presents with weakness.
His serum potassium is 7.0 mEq/L. Which ECG finding is MOST characteristic of this degree of
hyperkalemia?
A) ST-segment elevation in leads V1-V4 with reciprocal ST depression
B) Tall, peaked T-waves with a prolonged PR interval and widened QRS complex
C) Sinus bradycardia with first-degree AV block and narrow QRS complexes
D) Deeply inverted T-waves with a prolonged QT interval
[CORRECT: B]
Rationale: The SAEM M4 Curriculum 2 specifically identifies the ECG progression of severe
hyperkalemia (K+ ≥7.0 mEq/L): (1) tall, peaked ("tented") T-waves due to accelerated
repolarization; (2) prolonged PR interval from impaired atrial conduction; (3) widened QRS from
slowed ventricular depolarization; (4) eventual sine wave pattern and asystole. At 7.0 mEq/L,
patients typically demonstrate the full triad of peaked T-waves, PR prolongation, and QRS
widening. This represents a true emergency requiring immediate IV calcium gluconate to
, stabilize cardiac myocyte membranes, followed by insulin/glucose and albuterol to shift
potassium intracellularly.
Question 5 (Multiple Choice)
A 45-year-old female with diabetic ketoacidosis has a serum potassium of 7.2 mEq/L. Her ECG
shows peaked T-waves and a QRS duration of 140 ms. What is the MOST appropriate immediate
intervention?
A) IV Sodium Bicarbonate 50 mEq push to narrow the QRS complex
B) IV Calcium Gluconate 1 g to stabilize cardiac myocyte membranes
C) Oral Kayexalate 30 g to enhance gastrointestinal potassium elimination
D) IV Furosemide 80 mg to promote renal potassium excretion
[CORRECT: B]
Rationale: The SAEM M4 Curriculum 2 emphasizes that severe hyperkalemia with ECG changes
(peaked T-waves, widened QRS) constitutes a cardiac emergency. IV Calcium Gluconate (or
Calcium Chloride) is the immediate antidote that stabilizes cardiac myocyte membranes by
antagonizing potassium's depolarizing effects on the resting membrane potential. Calcium does
NOT lower serum potassium; it protects against fatal arrhythmias. The widened QRS (140 ms)
indicates imminent risk of sine wave degeneration and ventricular fibrillation. Sodium
bicarbonate (A) is used for metabolic acidosis but is not the first-line agent for ECG-stabilization.
Oral Kayexalate (C) and furosemide (D) are temporizing or slower interventions insufficient for
immediate cardiac protection.
Question 6 (Select-All-That-Apply)
A 62-year-old male with chronic kidney disease presents with severe hyperkalemia (K+ 7.0
mEq/L). His ECG demonstrates the classic findings. Which of the following are TRUE regarding
the management of this condition?
A) IV Calcium Gluconate stabilizes the cardiac myocyte membrane and is administered first
B) Tall, peaked T-waves represent the earliest ECG manifestation of hyperkalemia
C) A widened QRS complex indicates the potassium is causing dangerous cardiotoxicity
D) Insulin with glucose shifts potassium intracellularly and lowers total body potassium
Complete Solutions 2026/2027 Comprehensive
Examination.
Instructions: This examination consists of exactly 50 questions across four emergency medicine
sub-specialty domains. Select the best answer(s) for each question. All calculation-based
questions require showing your work.
DOMAIN 1: Cardiovascular, Toxicology & Electrolyte Emergencies (12
Questions)
Sub-Topic: Norepinephrine in Septic Shock (3 Questions)
Question 1 (Multiple Choice)
A 68-year-old male presents with fever, altered mental status, and hypotension (BP 72/48
mmHg). Blood cultures are pending. He is diagnosed with septic shock. Which of the following
best describes the primary pharmacologic mechanism of norepinephrine as the first-line
vasopressor in this patient?
A) It is a pure beta-1 agonist that increases cardiac contractility without affecting systemic
vascular resistance
B) It is a potent alpha-1 agonist that causes peripheral vasoconstriction and increases mean
arterial pressure
C) It is a pure dopaminergic agonist that selectively dilates renal and splanchnic vasculature
D) It is a phosphodiesterase inhibitor that increases intracellular cyclic AMP in cardiac myocytes
[CORRECT: B]
Rationale: Norepinephrine is the first-line vasopressor for undifferentiated septic shock per the
Surviving Sepsis Campaign guidelines. Its primary mechanism is potent alpha-1 adrenergic
receptor agonism, causing peripheral vasoconstriction of both arterial and venous beds, thereby
increasing systemic vascular resistance and mean arterial pressure (MAP). While norepinephrine
has weak beta-1 activity, its therapeutic efficacy in septic shock derives predominantly from
,alpha-1 mediated vasoconstriction, making it superior to dopamine (which causes more
arrhythmias) and phenylephrine (which lacks inotropic support). This aligns with SAEM M4
Curriculum 2 objectives on septic shock hemodynamic management.
Question 2 (Multiple Choice)
A 55-year-old female with urosepsis remains hypotensive (MAP 58 mmHg) despite 30 mL/kg
crystalloid resuscitation. The emergency physician initiates norepinephrine infusion. Which
physiologic effect is MOST responsible for the restoration of adequate perfusion pressure?
A) Increased heart rate through direct sinoatrial node stimulation
B) Peripheral vasoconstriction via alpha-1 receptor activation
C) Bronchodilation via beta-2 receptor activation
D) Increased renal blood flow through dopamine-1 receptor stimulation
[CORRECT: B]
Rationale: The SAEM M4 Curriculum 2 emphasizes that norepinephrine's efficacy in septic
shock is primarily attributable to its potent alpha-1 adrenergic receptor agonism. In septic
shock, profound vasodilation and capillary leak reduce effective circulating volume and systemic
vascular resistance. Norepinephrine restores vascular tone through alpha-1 mediated smooth
muscle contraction in peripheral arterioles, increasing afterload and MAP. This mechanism
directly addresses the pathophysiologic deficit in distributive shock. The weak beta-1 activity
provides modest inotropic support, but the alpha-1 vasoconstriction is the dominant
hemodynamic effect.
Question 3 (Select-All-That-Apply)
A 72-year-old male with pneumonia-induced septic shock requires vasopressor support.
Regarding norepinephrine as the recommended first-line agent, which of the following
statements are correct?
A) Norepinephrine primarily acts as an alpha-1 adrenergic agonist, causing peripheral
vasoconstriction
B) Norepinephrine increases mean arterial pressure by increasing systemic vascular resistance
C) Norepinephrine should be titrated to maintain a MAP of at least 65 mmHg
,D) Norepinephrine causes significant tachycardia through potent beta-1 stimulation at standard
doses
E) Norepinephrine is preferred over dopamine due to lower risk of arrhythmias
[CORRECT: A, B, C, E]
Rationale: Per SAEM M4 Curriculum 2 septic shock objectives: (A) Norepinephrine is a potent
alpha-1 agonist—this is its defining pharmacologic characteristic. (B) The increase in MAP is
achieved primarily through increased systemic vascular resistance via peripheral
vasoconstriction. (C) The Surviving Sepsis Campaign recommends targeting MAP ≥65 mmHg in
most septic shock patients. (E) Multiple randomized trials (including SOAP II) demonstrate
norepinephrine causes significantly fewer arrhythmias than dopamine, establishing it as the
preferred first-line agent. (D) is incorrect because norepinephrine has weak beta-1 activity
compared to epinephrine or dobutamine; significant tachycardia is not a hallmark of
norepinephrine at standard infusion rates.
Sub-Topic: Severe Hyperkalemia ECG & Management (3 Questions)
Question 4 (Multiple Choice)
A 58-year-old male with end-stage renal disease missed dialysis and presents with weakness.
His serum potassium is 7.0 mEq/L. Which ECG finding is MOST characteristic of this degree of
hyperkalemia?
A) ST-segment elevation in leads V1-V4 with reciprocal ST depression
B) Tall, peaked T-waves with a prolonged PR interval and widened QRS complex
C) Sinus bradycardia with first-degree AV block and narrow QRS complexes
D) Deeply inverted T-waves with a prolonged QT interval
[CORRECT: B]
Rationale: The SAEM M4 Curriculum 2 specifically identifies the ECG progression of severe
hyperkalemia (K+ ≥7.0 mEq/L): (1) tall, peaked ("tented") T-waves due to accelerated
repolarization; (2) prolonged PR interval from impaired atrial conduction; (3) widened QRS from
slowed ventricular depolarization; (4) eventual sine wave pattern and asystole. At 7.0 mEq/L,
patients typically demonstrate the full triad of peaked T-waves, PR prolongation, and QRS
widening. This represents a true emergency requiring immediate IV calcium gluconate to
, stabilize cardiac myocyte membranes, followed by insulin/glucose and albuterol to shift
potassium intracellularly.
Question 5 (Multiple Choice)
A 45-year-old female with diabetic ketoacidosis has a serum potassium of 7.2 mEq/L. Her ECG
shows peaked T-waves and a QRS duration of 140 ms. What is the MOST appropriate immediate
intervention?
A) IV Sodium Bicarbonate 50 mEq push to narrow the QRS complex
B) IV Calcium Gluconate 1 g to stabilize cardiac myocyte membranes
C) Oral Kayexalate 30 g to enhance gastrointestinal potassium elimination
D) IV Furosemide 80 mg to promote renal potassium excretion
[CORRECT: B]
Rationale: The SAEM M4 Curriculum 2 emphasizes that severe hyperkalemia with ECG changes
(peaked T-waves, widened QRS) constitutes a cardiac emergency. IV Calcium Gluconate (or
Calcium Chloride) is the immediate antidote that stabilizes cardiac myocyte membranes by
antagonizing potassium's depolarizing effects on the resting membrane potential. Calcium does
NOT lower serum potassium; it protects against fatal arrhythmias. The widened QRS (140 ms)
indicates imminent risk of sine wave degeneration and ventricular fibrillation. Sodium
bicarbonate (A) is used for metabolic acidosis but is not the first-line agent for ECG-stabilization.
Oral Kayexalate (C) and furosemide (D) are temporizing or slower interventions insufficient for
immediate cardiac protection.
Question 6 (Select-All-That-Apply)
A 62-year-old male with chronic kidney disease presents with severe hyperkalemia (K+ 7.0
mEq/L). His ECG demonstrates the classic findings. Which of the following are TRUE regarding
the management of this condition?
A) IV Calcium Gluconate stabilizes the cardiac myocyte membrane and is administered first
B) Tall, peaked T-waves represent the earliest ECG manifestation of hyperkalemia
C) A widened QRS complex indicates the potassium is causing dangerous cardiotoxicity
D) Insulin with glucose shifts potassium intracellularly and lowers total body potassium
