N480 quiz 1 Questions and Answers Already Passed Latest Update 2025-2026
PF ratio - Answers PaO2 ÷ FiO2 × 100
Baseline FiO2 for room air - Answers 21%
Normal PaO2 range - Answers 80-100 mmHg; critical if ≤ 60 mmHg
Increase in FiO2 per 1 L/min of O2 - Answers About 3-4% per liter
Head tilt for airway management - Answers If no suspicion of trauma
Confirmation of ET tube placement - Answers Equal lung sounds, chest rise, and X-ray (2-6 cm
above carina)
Airway for unresponsive but breathing patient - Answers Non-rebreather mask (NRB)
Airway for not breathing patient - Answers Bag-valve-mask (BVM)
ROSC - Answers Return of Spontaneous Circulation
Code Blue - Answers Adult is dying
Code White - Answers Infant is dying
H's of cardiac arrest - Answers Hypovolemia, Hypoxia, Hydrogen ion, Hypo-/Hyperkalemia,
Hypothermia, Hypoglycemia
T's of cardiac arrest - Answers Toxins, Tamponade, Tension pneumothorax, Thrombosis,
Trauma
TTM - Answers Targeted Temperature Management: cooled to 32-36°C post-ROSC. Shivering ↑
metabolic demand.
RRT arrival time - Answers 5-10 minutes
PEEP's role in ventilation - Answers Keeps alveoli open
Main vent modes - Answers A/C (full support), SIMV (shared support), SBT (weaning)
Main vent settings - Answers Rate (RR), Tidal Volume (Vt), PEEP, FiO2
DOPE - Answers Displaced tube, Obstruction, Pneumothorax, Equipment failure
Signs of ARDS - Answers Retractions, tachypnea, cyanosis, pulmonary crackles
Signs of tension pneumothorax - Answers Severe dyspnea, tracheal deviation, absent breath
sounds, distended neck veins
,Normal PR interval - Answers 0.12-0.20 sec (3-5 small boxes)
Normal QRS interval - Answers 0.08-0.12 sec (2-3 small boxes)
Dysrhythmias requiring defibrillation - Answers Ventricular fibrillation, pulseless ventricular
tachycardia
Teaching for atrial fibrillation patients - Answers Anticoagulants, fall precautions, stroke
education (FAST), HR control, cardioversion if needed
Elevated troponin - Answers Indicates myocardial infarction
Signs of an MI - Answers Chest pain >30 min, diaphoresis, impending doom, nausea,
clammy/cool skin, relieved only by opioids
Normal ABG values - Answers pH 7.35-7.45, PaCO2 35-45, HCO3 22-26
ABG pattern for respiratory acidosis - Answers Low pH, High PaCO2
ABG pattern for metabolic acidosis - Answers Low pH, Low HCO3
ABG pattern for respiratory alkalosis - Answers High pH, Low PaCO2
ABG pattern for metabolic alkalosis - Answers High pH, High HCO3
Normal potassium level - Answers 3.5-5.0 mEq/L
Normal sodium level - Answers 135-145 mEq/L
HAIs - Answers VAP, HAP, SSI, CAUTI, CLABSI
VAP occurrence - Answers 48 hours after intubation
CAM-ICU tool - Answers Assessing delirium
Main symptoms of TB - Answers Night sweats, chronic cough, weight loss
Isolation for TB - Answers Negative airflow room, airborne precautions
Poison treated with N-acetylcysteine - Answers Acetaminophen overdose
Poison treated with naloxone - Answers Opioids
Poison treated with flumazenil - Answers Benzodiazepines
Nasopharyngeal - Answers Not indicated if there are facial or base skull fractures.
Head Tilt - Answers Used for suspicion of head trauma.
Chest Wall - Answers Refers to the rib cage.
, FIO2 - Answers Baseline oxygen concentration we all breathe in is 21%.
PAO2 Normal Range - Answers Normal is 80-100; for cardiac it is 60-100, with 60 being critical.
1 Liter per Minute - Answers Is equal to 3-4% increase in oxygen concentration.
Airway Clearance - Answers If a patient can produce sound, the airway is clear.
NRB - Answers Non-rebreather mask used if a patient is unresponsive but can breathe on their
own.
BVM - Answers Bag-valve-mask used if the patient is not breathing.
H's of Cardiac Arrest - Answers Hypovolemia, hypoxia, hydrogen, hypo/hyperkalemia,
hypothermia, hypoglycemia.
T's of Cardiac Arrest - Answers Toxins (accidental/deliberate), tamponade (cardiac), tension
pneumothorax, thrombosis, trauma.
RRT - Answers Rapid response team takes about 5-10 minutes to arrive.
HAI's - Answers Healthcare-associated infections including VAP, HAP, SSI, CAUTI, CLABSI/BSI.
Venous Snake Bites - Answers Require anti-venom within 4-12 hours; no tourniquets, steroids,
sucking on the wound, or ice.
Recluse Spider Bite - Answers Painless at the time of bite with systemic symptoms appearing 2-
3 days after; requires surgical debridement.
Black Widow Bite - Answers Painful within 30 minutes; requires elevation, ice, and antivenom.
Household Poisons - Answers Includes acetaminophen, aspirin, NSAIDs, antidepressants,
opioids, and benzodiazepines with specific treatments.
Lab Values - Answers pH 7.35-7.45, HCO3 21-26, PACO2 35-45.
Potassium - Answers Normal range is 3.5-5.0; can be lost with loop diuretics but maintained
with potassium-sparing diuretics.
Sodium - Answers Lives extracellularly; follows water and can cause edema.
Delirium - Answers Assessed using the CAM-ICU tool; 80% of patients develop delirium.
ABCDE Bundle - Answers A set of evidence-based practices designed to improve care and
outcomes of critically ill patients.
Alarm Fatigue - Answers Do not turn off alarms; they can vary 20% above or below patient
baseline vital signs.
PF ratio - Answers PaO2 ÷ FiO2 × 100
Baseline FiO2 for room air - Answers 21%
Normal PaO2 range - Answers 80-100 mmHg; critical if ≤ 60 mmHg
Increase in FiO2 per 1 L/min of O2 - Answers About 3-4% per liter
Head tilt for airway management - Answers If no suspicion of trauma
Confirmation of ET tube placement - Answers Equal lung sounds, chest rise, and X-ray (2-6 cm
above carina)
Airway for unresponsive but breathing patient - Answers Non-rebreather mask (NRB)
Airway for not breathing patient - Answers Bag-valve-mask (BVM)
ROSC - Answers Return of Spontaneous Circulation
Code Blue - Answers Adult is dying
Code White - Answers Infant is dying
H's of cardiac arrest - Answers Hypovolemia, Hypoxia, Hydrogen ion, Hypo-/Hyperkalemia,
Hypothermia, Hypoglycemia
T's of cardiac arrest - Answers Toxins, Tamponade, Tension pneumothorax, Thrombosis,
Trauma
TTM - Answers Targeted Temperature Management: cooled to 32-36°C post-ROSC. Shivering ↑
metabolic demand.
RRT arrival time - Answers 5-10 minutes
PEEP's role in ventilation - Answers Keeps alveoli open
Main vent modes - Answers A/C (full support), SIMV (shared support), SBT (weaning)
Main vent settings - Answers Rate (RR), Tidal Volume (Vt), PEEP, FiO2
DOPE - Answers Displaced tube, Obstruction, Pneumothorax, Equipment failure
Signs of ARDS - Answers Retractions, tachypnea, cyanosis, pulmonary crackles
Signs of tension pneumothorax - Answers Severe dyspnea, tracheal deviation, absent breath
sounds, distended neck veins
,Normal PR interval - Answers 0.12-0.20 sec (3-5 small boxes)
Normal QRS interval - Answers 0.08-0.12 sec (2-3 small boxes)
Dysrhythmias requiring defibrillation - Answers Ventricular fibrillation, pulseless ventricular
tachycardia
Teaching for atrial fibrillation patients - Answers Anticoagulants, fall precautions, stroke
education (FAST), HR control, cardioversion if needed
Elevated troponin - Answers Indicates myocardial infarction
Signs of an MI - Answers Chest pain >30 min, diaphoresis, impending doom, nausea,
clammy/cool skin, relieved only by opioids
Normal ABG values - Answers pH 7.35-7.45, PaCO2 35-45, HCO3 22-26
ABG pattern for respiratory acidosis - Answers Low pH, High PaCO2
ABG pattern for metabolic acidosis - Answers Low pH, Low HCO3
ABG pattern for respiratory alkalosis - Answers High pH, Low PaCO2
ABG pattern for metabolic alkalosis - Answers High pH, High HCO3
Normal potassium level - Answers 3.5-5.0 mEq/L
Normal sodium level - Answers 135-145 mEq/L
HAIs - Answers VAP, HAP, SSI, CAUTI, CLABSI
VAP occurrence - Answers 48 hours after intubation
CAM-ICU tool - Answers Assessing delirium
Main symptoms of TB - Answers Night sweats, chronic cough, weight loss
Isolation for TB - Answers Negative airflow room, airborne precautions
Poison treated with N-acetylcysteine - Answers Acetaminophen overdose
Poison treated with naloxone - Answers Opioids
Poison treated with flumazenil - Answers Benzodiazepines
Nasopharyngeal - Answers Not indicated if there are facial or base skull fractures.
Head Tilt - Answers Used for suspicion of head trauma.
Chest Wall - Answers Refers to the rib cage.
, FIO2 - Answers Baseline oxygen concentration we all breathe in is 21%.
PAO2 Normal Range - Answers Normal is 80-100; for cardiac it is 60-100, with 60 being critical.
1 Liter per Minute - Answers Is equal to 3-4% increase in oxygen concentration.
Airway Clearance - Answers If a patient can produce sound, the airway is clear.
NRB - Answers Non-rebreather mask used if a patient is unresponsive but can breathe on their
own.
BVM - Answers Bag-valve-mask used if the patient is not breathing.
H's of Cardiac Arrest - Answers Hypovolemia, hypoxia, hydrogen, hypo/hyperkalemia,
hypothermia, hypoglycemia.
T's of Cardiac Arrest - Answers Toxins (accidental/deliberate), tamponade (cardiac), tension
pneumothorax, thrombosis, trauma.
RRT - Answers Rapid response team takes about 5-10 minutes to arrive.
HAI's - Answers Healthcare-associated infections including VAP, HAP, SSI, CAUTI, CLABSI/BSI.
Venous Snake Bites - Answers Require anti-venom within 4-12 hours; no tourniquets, steroids,
sucking on the wound, or ice.
Recluse Spider Bite - Answers Painless at the time of bite with systemic symptoms appearing 2-
3 days after; requires surgical debridement.
Black Widow Bite - Answers Painful within 30 minutes; requires elevation, ice, and antivenom.
Household Poisons - Answers Includes acetaminophen, aspirin, NSAIDs, antidepressants,
opioids, and benzodiazepines with specific treatments.
Lab Values - Answers pH 7.35-7.45, HCO3 21-26, PACO2 35-45.
Potassium - Answers Normal range is 3.5-5.0; can be lost with loop diuretics but maintained
with potassium-sparing diuretics.
Sodium - Answers Lives extracellularly; follows water and can cause edema.
Delirium - Answers Assessed using the CAM-ICU tool; 80% of patients develop delirium.
ABCDE Bundle - Answers A set of evidence-based practices designed to improve care and
outcomes of critically ill patients.
Alarm Fatigue - Answers Do not turn off alarms; they can vary 20% above or below patient
baseline vital signs.
