Fundamentals of Critical Care Support (FCCS) — Questions and Answers

Question 1: A lactate level > 4 mmol/L in a suspected infection patient meets criteria for which condition regardless of blood pressure?

Severe sepsis (old terminology)
Septic shock (Sepsis-3 criteria) (Correct answer)
SIRS only
Bacteremia

Correct answer: Septic shock (Sepsis-3 criteria)

Sepsis-3 defines septic shock as sepsis plus either vasopressor requirement to maintain MAP ≥ 65 or lactate > 2 mmol/L; lactate > 4 mmol/L alone strongly indicates high mortality risk equivalent to shock.

Question 2: The Glasgow Coma Scale (GCS) assesses which three components?

Eye opening, verbal response, motor response (Correct answer)
Orientation, memory, motor
Pupils, motor, verbal
Reflexes, cognition, behavior

Correct answer: Eye opening, verbal response, motor response

The GCS evaluates eye opening (1–4), verbal response (1–5), and motor response (1–6) for a maximum score of 15.

Question 3: Electrical alternans on ECG is most associated with which diagnosis?

Hypokalemia
Brugada syndrome
Cardiac tamponade (Correct answer)
Hypertrophic cardiomyopathy

Correct answer: Cardiac tamponade

Electrical alternans (beat-to-beat alternation of QRS axis/amplitude) results from the heart swinging within a large pericardial effusion, indicating tamponade.

Question 4: What does a PaO2/FiO2 ratio less than 200 indicate?

Moderate ARDS
Severe ARDS (Correct answer)
Mild hypoxemia
Respiratory alkalosis

Correct answer: Severe ARDS

A P/F ratio less than 200 mmHg with bilateral infiltrates and appropriate clinical context defines severe ARDS per the Berlin definition.

Question 5: The FOUR Score assesses which neurological domains?

Orientation, memory, attention, language
Cognition, reflex, motor, sensory
Eyes, motor, brainstem reflexes, respiration (Correct answer)
Eyes, verbal, motor, breathing

Correct answer: Eyes, motor, brainstem reflexes, respiration

The FOUR Score (Full Outline of UnResponsiveness) evaluates eye responses, motor responses, brainstem reflexes, and respiratory pattern, providing more detail than GCS.

Question 6: What tidal volume is recommended for lung-protective ventilation in ARDS patients?

14 mL/kg predicted body weight
8 mL/kg predicted body weight
10-12 mL/kg predicted body weight
6 mL/kg predicted body weight (Correct answer)

Correct answer: 6 mL/kg predicted body weight

Lung-protective ventilation in ARDS uses 6 mL/kg predicted body weight to minimize ventilator-induced lung injury.

Question 7: Empiric antifungal therapy with an echinocandin is most appropriate in which ICU patient?

Any patient on broad-spectrum antibiotics for > 24 hours
All ICU patients prophylactically
Any febrile neutropenic patient regardless of risk
Critically ill patient with multiple risk factors and positive beta-D-glucan or clinical candidiasis (Correct answer)

Correct answer: Critically ill patient with multiple risk factors and positive beta-D-glucan or clinical candidiasis

Echinocandin empiric therapy is indicated in critically ill patients with multiple candidiasis risk factors (prolonged antibiotics, TPN, renal replacement, colonization) plus suggestive biomarkers or clinical signs.

Question 8: Inadvertent hypothermia in critically ill patients is associated with which complication?

Improved antibiotic efficacy
Reduced oxygen consumption only
Improved neurological recovery in all patients
Coagulopathy, cardiac arrhythmias, and increased infection risk (Correct answer)

Correct answer: Coagulopathy, cardiac arrhythmias, and increased infection risk

Hypothermia impairs platelet function and coagulation factors, increases arrhythmia risk, and suppresses immune function, worsening outcomes in most critically ill patients.

Question 9: Which drug is the antidote for beta-blocker overdose causing bradycardia and hypotension?

Atropine
Sodium bicarbonate
Calcium gluconate
Glucagon (Correct answer)

Correct answer: Glucagon

Glucagon reverses beta-blocker toxicity by stimulating adenylate cyclase independently of beta receptors, increasing heart rate and contractility.

Question 10: What is the appropriate initial energy for defibrillation of ventricular fibrillation with a biphasic defibrillator?

50 J
360 J
120–200 J (Correct answer)
100 J

Correct answer: 120–200 J

Biphasic defibrillators typically use 120–200 J for the initial shock in ventricular fibrillation, following manufacturer recommendations.

Question 11: What is the classic ECG finding in hyperkalemia that precedes ventricular fibrillation?

Shortened QT interval
ST elevation
Peaked T waves progressing to wide QRS (Correct answer)
Prolonged PR interval only

Correct answer: Peaked T waves progressing to wide QRS

Hyperkalemia produces progressive ECG changes from peaked T waves to widened QRS complex, which can degenerate into ventricular fibrillation if untreated.

Question 12: Which clinical finding indicates adequate fluid resuscitation in septic shock?

MAP > 65, improving lactate clearance ≥ 10%, and improving urine output (Correct answer)
Heart rate < 100 bpm alone
Absence of fever
Normal white blood cell count

Correct answer: MAP > 65, improving lactate clearance ≥ 10%, and improving urine output

Resuscitation endpoints include MAP ≥ 65 mmHg, lactate clearance of ≥ 10% (targeting normalization), and improving urine output as markers of restored perfusion.

Question 13: A critically ill patient develops carpopedal spasm and a positive Chvostek's sign. Which electrolyte abnormality is most likely?

Hypophosphatemia
Hyperkalemia
Hyponatremia
Hypocalcemia (Correct answer)

Correct answer: Hypocalcemia

Hypocalcemia causes neuromuscular excitability, manifesting as carpopedal spasm, Chvostek's sign (facial nerve tapping), and Trousseau's sign.

Question 14: Which IV fluid is considered isotonic and is appropriate for initial fluid resuscitation in hypovolemia?

3% Hypertonic saline
5% Dextrose in water (D5W)
0.45% Normal saline
0.9% Normal saline (Correct answer)

Correct answer: 0.9% Normal saline

0.9% normal saline is isotonic (308 mOsm/L) and remains in the extracellular space, making it appropriate for volume resuscitation.

Question 15: A patient with decompensated heart failure and hyponatremia (Na = 128 mEq/L) presents to the ICU. What is the most appropriate initial fluid management?

Administer 2 L normal saline bolus
Administer 3% hypertonic saline rapidly
Give albumin infusion to expand intravascular volume
Restrict free water intake and consider diuretics (Correct answer)

Correct answer: Restrict free water intake and consider diuretics

Dilutional hyponatremia in heart failure is treated with free water restriction and diuresis; adding more fluid worsens volume overload without correcting sodium.

Question 16: Which parameter in a spontaneous breathing trial indicates failure and need to resume full ventilatory support?

SpO2 99%
Respiratory rate 18 breaths/min
Rapid shallow breathing index (RSBI) > 105 (Correct answer)
Tidal volume of 400 mL

Correct answer: Rapid shallow breathing index (RSBI) > 105

RSBI (respiratory rate ÷ tidal volume in liters) > 105 predicts SBT failure with high sensitivity, indicating the patient is not ready for extubation.

Question 17: Which urine output threshold is commonly used to indicate adequate fluid resuscitation in critically ill adults?

0.5 mL/kg/hr (Correct answer)
0.3 mL/kg/hr
0.1 mL/kg/hr
1.5 mL/kg/hr

Correct answer: 0.5 mL/kg/hr

A urine output of at least 0.5 mL/kg/hr reflects adequate renal perfusion and is a standard resuscitation endpoint.

Question 18: Neurogenic pulmonary edema following severe TBI or subarachnoid hemorrhage is caused by:

Fluid overload from resuscitation
Direct viral lung injury
Massive sympathetic discharge increasing pulmonary capillary pressure (Correct answer)
Aspiration of gastric contents

Correct answer: Massive sympathetic discharge increasing pulmonary capillary pressure

Severe brain injury triggers massive catecholamine release, raising pulmonary vascular pressures and causing fluid transudation into the alveoli.

Question 19: Which acid-base disturbance is most commonly caused by mechanical hyperventilation?

Respiratory acidosis
Respiratory alkalosis (Correct answer)
Metabolic acidosis
Metabolic alkalosis

Correct answer: Respiratory alkalosis

Excessive ventilation lowers PaCO2, raising blood pH and causing respiratory alkalosis.

Question 20: The first-line vasopressor for septic shock per Surviving Sepsis Guidelines is:

Vasopressin
Norepinephrine (Correct answer)
Dopamine
Epinephrine

Correct answer: Norepinephrine

Norepinephrine is recommended as the first-choice vasopressor for septic shock due to its superior vasoconstrictive effect and favorable safety profile.

Question 21: What is the initial step in managing a patient with suspected sepsis?

Initiate fluid resuscitation
Start vasopressor therapy
Obtain blood cultures (Correct answer)
Administer broad-spectrum antibiotics

Correct answer: Obtain blood cultures

The initial step in managing a patient with suspected sepsis is to obtain blood cultures before administering antibiotics. This allows for the identification of the specific pathogen causing the infection and its antibiotic sensitivities, guiding more targeted therapy. While antibiotics are critical, obtaining cultures first ensures diagnostic accuracy without unduly delaying empiric treatment.

Question 22: Which biomarker is most useful for monitoring antibiotic response and guiding de-escalation in sepsis?

Lactate
Procalcitonin (PCT) (Correct answer)
White blood cell count
C-reactive protein (CRP)

Correct answer: Procalcitonin (PCT)

Serial procalcitonin levels fall with effective antibiotic therapy, and PCT-guided de-escalation reduces antibiotic duration without worsening outcomes.

Question 23: Pulsus paradoxus greater than 10 mmHg is associated with which condition?

Mitral regurgitation
Aortic stenosis
Cardiac tamponade (Correct answer)
Left ventricular failure

Correct answer: Cardiac tamponade

Cardiac tamponade compresses the heart, causing exaggerated inspiratory drops in systolic BP exceeding 10 mmHg (pulsus paradoxus).

Question 24: What is the primary purpose of PEEP in mechanical ventilation?

Prevent alveolar collapse and improve oxygenation (Correct answer)
Reduce respiratory rate
Increase tidal volume
Decrease FiO2 requirements acutely

Correct answer: Prevent alveolar collapse and improve oxygenation

PEEP maintains positive end-expiratory pressure to keep alveoli open, preventing cyclic collapse and improving ventilation-perfusion matching.

Question 25: Which of the following is the most appropriate first step in managing a patient with a suspected airway obstruction?

Administer supplemental oxygen
Insert an oropharyngeal airway (Correct answer)
Use a bag-valve-mask to provide ventilation
Perform a cricothyrotomy

Correct answer: Insert an oropharyngeal airway

In a patient with a suspected airway obstruction, especially if unconscious, the initial step is to open the airway using basic maneuvers. If these are insufficient, inserting an oropharyngeal airway (OPA) is the most appropriate first device-based intervention. It helps maintain an open airway by preventing the tongue from obstructing the pharynx, serving as a crucial bridge to more advanced airway management if needed.

Question 26: Early enteral nutrition in ICU patients should ideally be started within how many hours of ICU admission?

6–12 hours
24–48 hours (Correct answer)
48–72 hours
72–96 hours

Correct answer: 24–48 hours

SCCM/ASPEN guidelines recommend initiating enteral nutrition within 24–48 hours of ICU admission in hemodynamically stable patients to preserve gut integrity.

Question 27: A patient with hemorrhagic shock has a blood pressure of 80/50 mmHg and heart rate of 130 bpm. What is the most appropriate initial fluid strategy?

Give 50 mEq sodium bicarbonate IV
Administer 250 mL D5W bolus
Restrict all fluids until bleeding is controlled
Administer 1–2 L balanced crystalloid bolus (Correct answer)

Correct answer: Administer 1–2 L balanced crystalloid bolus

Initial resuscitation in hemorrhagic shock uses 1–2 L of balanced crystalloid (Lactated Ringer's or normal saline) while preparing for blood product administration.

Question 28: Broad-spectrum antibiotics in sepsis should ideally be de-escalated based on culture data within how many hours?

72–96 hours (Correct answer)
7 days
24–48 hours
No de-escalation needed if clinical improvement

Correct answer: 72–96 hours

De-escalation to narrower-spectrum antibiotics based on culture and sensitivity data within 72–96 hours is recommended to reduce resistance and adverse effects.

Question 29: Catheter-associated urinary tract infection (CAUTI) prevention is best achieved by:

Routine urine cultures every 48 hours in catheterized patients
Removing the urinary catheter as soon as it is no longer needed (Correct answer)
Using antibiotic-coated catheters in all ICU patients
Changing the Foley catheter every 72 hours

Correct answer: Removing the urinary catheter as soon as it is no longer needed

The most effective CAUTI prevention measure is daily reassessment and prompt removal of urinary catheters when no longer clinically indicated.

Question 30: What is the mechanism of action of adenosine in terminating SVT?

Transiently blocks AV nodal conduction, interrupting reentry circuits (Correct answer)
Prolongs ventricular action potential
Increases vagal tone chronically
Blocks calcium channels in ventricular muscle

Correct answer: Transiently blocks AV nodal conduction, interrupting reentry circuits

Adenosine causes transient AV nodal block by activating A1 receptors, interrupting the reentrant circuit responsible for most SVT.

Fundamentals of Critical Care Support (FCCS)

The FCCS course from the Society of Critical Care Medicine trains non-intensivists to manage critically ill patients during the first 24 hours until specialist care is available. A posttest with a 70% passing score is required for course completion and certificate issuance.

Questions

35 min

Time Limit

70%

To Pass

Checking for saved progress...

Exam Rules

You can skip questions and return to them later
Flag questions for review before submitting
No feedback shown until you submit the entire exam
Unanswered questions count as wrong — answer everything
10 pretest questions are mixed in and don't affect your score
Timer auto-submits when time runs out
Your progress is auto-saved every 30 seconds