ABSITE CRITICAL CARE EXAM 2025/2026 ACTUAL EXAM COMPLETE 300 QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) /ALREADY GRADED A+ // BRAND
NEW!!
Question 1
A 65-year-old male presents to the ED with acute onset shortness of breath, chest pain, and
hypotension (BP 80/50 mmHg). Physical exam reveals distended neck veins, muffled heart
sounds, and clear lung fields. Which type of shock is most likely?
A) Hypovolemic shock
B) Cardiogenic shock
C) Obstructive shock
D) Distributive shock
E) Neurogenic shock
Correct Answer: C) Obstructive shock
Rationale: The classic triad of distended neck veins, muffled heart sounds, and hypotension
(Beck's triad) in the presence of clear lungs is highly suggestive of cardiac tamponade, a form
of obstructive shock.
Question 2
What is the primary hemodynamic derangement in distributive shock?
A) Decreased preload
B) Increased afterload
C) Profound vasodilation leading to decreased systemic vascular resistance (SVR)
D) Impaired myocardial contractility
E) Increased central venous pressure (CVP)
Correct Answer: C) Profound vasodilation leading to decreased systemic vascular resistance
(SVR)
Rationale: Distributive shock (e.g., septic shock, anaphylactic shock, neurogenic shock) is
characterized by a widespread loss of vascular tone, leading to a dramatic drop in SVR,
despite often normal or even increased cardiac output.
Question 3
Which of the following is the most appropriate initial fluid resuscitation strategy for a patient in
septic shock?
A) Hypertonic saline
B) 5% Dextrose in Water (D5W)
C) Large volume crystalloid boluses (e.g., 30 mL/kg over 3 hours)
D) Albumin only
E) Blood products for all patients
Correct Answer: C) Large volume crystalloid boluses (e.g., 30 mL/kg over 3 hours)
Rationale: Current Surviving Sepsis Campaign guidelines recommend starting fluid
,resuscitation with 30 mL/kg of intravenous crystalloid within the first 3 hours for patients
with hypotension or a serum lactate level ≥ 2 mmol/L.
Question 4
A 45-year-old female is admitted to the ICU with severe pancreatitis. She develops fever,
tachycardia, tachypnea, and leukocytosis. Her Sequential Organ Failure Assessment (SOFA) score
is 3. What is the most accurate classification of her condition?
A) Sepsis
B) Severe Sepsis
C) Septic Shock
D) Systemic Inflammatory Response Syndrome (SIRS)
E) Multiple Organ Dysfunction Syndrome (MODS)
Correct Answer: D) Systemic Inflammatory Response Syndrome (SIRS)
Rationale: The symptoms described (fever, tachycardia, tachypnea, leukocytosis) are criteria
for SIRS. Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host
response to infection. While severe pancreatitis is an inflammatory process, without
confirmed infection and a SOFA score of 3 (not 2 or more points increase due to infection), it
is initially classified as SIRS.
Question 5
What is the primary goal of low tidal volume ventilation in patients with Acute Respiratory
Distress Syndrome (ARDS)?
A) To maximize lung recruitment
B) To prevent ventilator-associated pneumonia (VAP)
C) To reduce barotrauma and volutrauma
D) To decrease dead space ventilation
E) To increase oxygen delivery
Correct Answer: C) To reduce barotrauma and volutrauma
Rationale: Low tidal volume ventilation (typically 6 mL/kg predicted body weight) aims to
minimize excessive stretch and pressure on the fragile ARDS lungs, thereby reducing
ventilator-induced lung injury (barotrauma and volutrauma).
Question 6
A patient on mechanical ventilation has persistent hypoxia despite high FiO2. A chest X-ray
shows bilateral infiltrates consistent with ARDS. Which ventilator setting, when increased, can
help improve oxygenation by preventing alveolar collapse at end-expiration?
A) Tidal Volume (Vt)
B) Respiratory Rate (RR)
C) Peak Inspiratory Pressure (PIP)
D) Positive End-Expiratory Pressure (PEEP)
,E) Inspiratory Time (Ti)
Correct Answer: D) Positive End-Expiratory Pressure (PEEP)
Rationale: PEEP keeps the alveoli open at the end of exhalation, increasing functional residual
capacity, improving oxygenation by preventing atelectasis, and facilitating gas exchange.
Question 7
Which vasoactive agent is generally considered the first-line vasopressor in patients with septic
shock who remain hypotensive despite adequate fluid resuscitation?
A) Dopamine
B) Epinephrine
C) Phenylephrine
D) Norepinephrine
E) Vasopressin
Correct Answer: D) Norepinephrine
Rationale: Norepinephrine (levophed) is recommended as the first-choice vasopressor in
septic shock due to its potent alpha-adrenergic effects (vasoconstriction) with less
chronotropy and arrhythmogenic potential compared to other agents like dopamine or
epinephrine.
Question 8
What is the most common cause of acute kidney injury (AKI) in the ICU setting?
A) Obstructive nephropathy
B) Glomerulonephritis
C) Drug-induced nephrotoxicity
D) Sepsis and hypoperfusion (acute tubular necrosis)
E) Rhabdomyolysis
Correct Answer: D) Sepsis and hypoperfusion (acute tubular necrosis)
Rationale: Acute tubular necrosis (ATN) resulting from prolonged hypoperfusion and ischemia,
often associated with sepsis or other forms of shock, is the leading cause of AKI in critically ill
patients.
Question 9
A patient with severe traumatic brain injury (TBI) develops diabetes insipidus. Which of the
following is the most appropriate initial treatment?
A) Insulin infusion
B) High-dose corticosteroids
C) Desmopressin (DDAVP)
D) Loop diuretics
E) Fluid restriction
Correct Answer: C) Desmopressin (DDAVP)
, Rationale: Diabetes insipidus is characterized by the inability to concentrate urine due to
insufficient antidiuretic hormone (ADH) secretion. Desmopressin is a synthetic ADH analog
used to replace the deficient hormone and reduce excessive urine output.
Question 10
In a patient with suspected tension pneumothorax, what is the immediate life-saving
intervention?
A) Chest tube insertion at the 5th intercostal space
B) Needle decompression at the 2nd intercostal space, midclavicular line
C) Endotracheal intubation and mechanical ventilation
D) Large bore IV fluid resuscitation
E) Immediate surgical exploration
Correct Answer: B) Needle decompression at the 2nd intercostal space, midclavicular line
Rationale: Tension pneumothorax is a medical emergency requiring immediate decompression
to relieve mediastinal shift and restore hemodynamics. Needle decompression is the fastest
initial intervention, followed by definitive chest tube placement.
Question 11
Which of the following best describes the physiological basis for metabolic acidosis with an
elevated anion gap?
A) Loss of bicarbonate from the body
B) Accumulation of unmeasured acids
C) Retention of excess CO2
D) Excessive intake of alkaline substances
E) Hyperventilation
Correct Answer: B) Accumulation of unmeasured acids
Rationale: An elevated anion gap metabolic acidosis occurs when there is an increase in
unmeasured anions in the blood, such as lactate (lactic acidosis), ketones (ketoacidosis), or
toxins (e.g., methanol, ethylene glycol).
Question 12
What is the recommended target glucose range for most critically ill patients receiving insulin
therapy?
A) 80-110 mg/dL
B) 110-140 mg/dL
C) 140-180 mg/dL
D) 180-220 mg/dL
E) <250 mg/dL
Correct Answer: C) 140-180 mg/dL
Rationale: While historical recommendations aimed for tighter glycemic control, current
DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) /ALREADY GRADED A+ // BRAND
NEW!!
Question 1
A 65-year-old male presents to the ED with acute onset shortness of breath, chest pain, and
hypotension (BP 80/50 mmHg). Physical exam reveals distended neck veins, muffled heart
sounds, and clear lung fields. Which type of shock is most likely?
A) Hypovolemic shock
B) Cardiogenic shock
C) Obstructive shock
D) Distributive shock
E) Neurogenic shock
Correct Answer: C) Obstructive shock
Rationale: The classic triad of distended neck veins, muffled heart sounds, and hypotension
(Beck's triad) in the presence of clear lungs is highly suggestive of cardiac tamponade, a form
of obstructive shock.
Question 2
What is the primary hemodynamic derangement in distributive shock?
A) Decreased preload
B) Increased afterload
C) Profound vasodilation leading to decreased systemic vascular resistance (SVR)
D) Impaired myocardial contractility
E) Increased central venous pressure (CVP)
Correct Answer: C) Profound vasodilation leading to decreased systemic vascular resistance
(SVR)
Rationale: Distributive shock (e.g., septic shock, anaphylactic shock, neurogenic shock) is
characterized by a widespread loss of vascular tone, leading to a dramatic drop in SVR,
despite often normal or even increased cardiac output.
Question 3
Which of the following is the most appropriate initial fluid resuscitation strategy for a patient in
septic shock?
A) Hypertonic saline
B) 5% Dextrose in Water (D5W)
C) Large volume crystalloid boluses (e.g., 30 mL/kg over 3 hours)
D) Albumin only
E) Blood products for all patients
Correct Answer: C) Large volume crystalloid boluses (e.g., 30 mL/kg over 3 hours)
Rationale: Current Surviving Sepsis Campaign guidelines recommend starting fluid
,resuscitation with 30 mL/kg of intravenous crystalloid within the first 3 hours for patients
with hypotension or a serum lactate level ≥ 2 mmol/L.
Question 4
A 45-year-old female is admitted to the ICU with severe pancreatitis. She develops fever,
tachycardia, tachypnea, and leukocytosis. Her Sequential Organ Failure Assessment (SOFA) score
is 3. What is the most accurate classification of her condition?
A) Sepsis
B) Severe Sepsis
C) Septic Shock
D) Systemic Inflammatory Response Syndrome (SIRS)
E) Multiple Organ Dysfunction Syndrome (MODS)
Correct Answer: D) Systemic Inflammatory Response Syndrome (SIRS)
Rationale: The symptoms described (fever, tachycardia, tachypnea, leukocytosis) are criteria
for SIRS. Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host
response to infection. While severe pancreatitis is an inflammatory process, without
confirmed infection and a SOFA score of 3 (not 2 or more points increase due to infection), it
is initially classified as SIRS.
Question 5
What is the primary goal of low tidal volume ventilation in patients with Acute Respiratory
Distress Syndrome (ARDS)?
A) To maximize lung recruitment
B) To prevent ventilator-associated pneumonia (VAP)
C) To reduce barotrauma and volutrauma
D) To decrease dead space ventilation
E) To increase oxygen delivery
Correct Answer: C) To reduce barotrauma and volutrauma
Rationale: Low tidal volume ventilation (typically 6 mL/kg predicted body weight) aims to
minimize excessive stretch and pressure on the fragile ARDS lungs, thereby reducing
ventilator-induced lung injury (barotrauma and volutrauma).
Question 6
A patient on mechanical ventilation has persistent hypoxia despite high FiO2. A chest X-ray
shows bilateral infiltrates consistent with ARDS. Which ventilator setting, when increased, can
help improve oxygenation by preventing alveolar collapse at end-expiration?
A) Tidal Volume (Vt)
B) Respiratory Rate (RR)
C) Peak Inspiratory Pressure (PIP)
D) Positive End-Expiratory Pressure (PEEP)
,E) Inspiratory Time (Ti)
Correct Answer: D) Positive End-Expiratory Pressure (PEEP)
Rationale: PEEP keeps the alveoli open at the end of exhalation, increasing functional residual
capacity, improving oxygenation by preventing atelectasis, and facilitating gas exchange.
Question 7
Which vasoactive agent is generally considered the first-line vasopressor in patients with septic
shock who remain hypotensive despite adequate fluid resuscitation?
A) Dopamine
B) Epinephrine
C) Phenylephrine
D) Norepinephrine
E) Vasopressin
Correct Answer: D) Norepinephrine
Rationale: Norepinephrine (levophed) is recommended as the first-choice vasopressor in
septic shock due to its potent alpha-adrenergic effects (vasoconstriction) with less
chronotropy and arrhythmogenic potential compared to other agents like dopamine or
epinephrine.
Question 8
What is the most common cause of acute kidney injury (AKI) in the ICU setting?
A) Obstructive nephropathy
B) Glomerulonephritis
C) Drug-induced nephrotoxicity
D) Sepsis and hypoperfusion (acute tubular necrosis)
E) Rhabdomyolysis
Correct Answer: D) Sepsis and hypoperfusion (acute tubular necrosis)
Rationale: Acute tubular necrosis (ATN) resulting from prolonged hypoperfusion and ischemia,
often associated with sepsis or other forms of shock, is the leading cause of AKI in critically ill
patients.
Question 9
A patient with severe traumatic brain injury (TBI) develops diabetes insipidus. Which of the
following is the most appropriate initial treatment?
A) Insulin infusion
B) High-dose corticosteroids
C) Desmopressin (DDAVP)
D) Loop diuretics
E) Fluid restriction
Correct Answer: C) Desmopressin (DDAVP)
, Rationale: Diabetes insipidus is characterized by the inability to concentrate urine due to
insufficient antidiuretic hormone (ADH) secretion. Desmopressin is a synthetic ADH analog
used to replace the deficient hormone and reduce excessive urine output.
Question 10
In a patient with suspected tension pneumothorax, what is the immediate life-saving
intervention?
A) Chest tube insertion at the 5th intercostal space
B) Needle decompression at the 2nd intercostal space, midclavicular line
C) Endotracheal intubation and mechanical ventilation
D) Large bore IV fluid resuscitation
E) Immediate surgical exploration
Correct Answer: B) Needle decompression at the 2nd intercostal space, midclavicular line
Rationale: Tension pneumothorax is a medical emergency requiring immediate decompression
to relieve mediastinal shift and restore hemodynamics. Needle decompression is the fastest
initial intervention, followed by definitive chest tube placement.
Question 11
Which of the following best describes the physiological basis for metabolic acidosis with an
elevated anion gap?
A) Loss of bicarbonate from the body
B) Accumulation of unmeasured acids
C) Retention of excess CO2
D) Excessive intake of alkaline substances
E) Hyperventilation
Correct Answer: B) Accumulation of unmeasured acids
Rationale: An elevated anion gap metabolic acidosis occurs when there is an increase in
unmeasured anions in the blood, such as lactate (lactic acidosis), ketones (ketoacidosis), or
toxins (e.g., methanol, ethylene glycol).
Question 12
What is the recommended target glucose range for most critically ill patients receiving insulin
therapy?
A) 80-110 mg/dL
B) 110-140 mg/dL
C) 140-180 mg/dL
D) 180-220 mg/dL
E) <250 mg/dL
Correct Answer: C) 140-180 mg/dL
Rationale: While historical recommendations aimed for tighter glycemic control, current
