DAANCE All Modules Exam Predictor | Most
Frequently Tested QUESTIONs, Verified Answers &
Expert Rationales (2026/2027)
QUESTION 1
Which branch of the trigeminal nerve (CN V) provides sensory
innervation to the mandibular teeth, lower lip, and chin?
• A. Ophthalmic nerve (V1)
• B. Maxillary nerve (V2)
• C. Mandibular nerve (V3)
• D. Facial nerve (CN VII)
Correct Answer: C. Mandibular nerve (V3)
Detailed Rationale: The mandibular division (V3) exits the cranium via
the foramen ovale and supplies sensory innervation to the lower jaw,
teeth, periodontium, lower lip, and anterior two-thirds of the tongue.
QUESTION 2
What is the average normal resting cardiac output for a healthy adult?
• A. 1 to 2 liters per minute
• B. 5 to 6 liters per minute
• C. 12 to 15 liters per minute
• D. 25 liters per minute
,Correct Answer: B. 5 to 6 liters per minute
Detailed Rationale: Cardiac output is the volume of blood pumped by
each ventricle per minute, calculated as heart rate multiplied by stroke
volume, averaging roughly 5 liters per minute at rest in a healthy adult.
QUESTION 3
Where are amide-type local anesthetics (such as lidocaine,
mepivacaine, and bupivacaine) primarily metabolized in the human
body?
• A. Plasma via pseudocholinesterase hydrolysis
• B. Renal glomerular filtration without enzymatic breakdown
• C. Microsomal enzymes in the liver (cytochrome P450 system)
• D. Alveolar capillary membrane exchange
Correct Answer: C. Microsomal enzymes in the liver (cytochrome P450
system)
Detailed Rationale: Unlike ester anesthetics that are hydrolyzed in the
bloodstream, amide local anesthetics depend primarily on hepatic
CYP450 enzymes for biotransformation and clearance.
QUESTION 4
What is the standard intermediate pressure delivered by pipeline hoses
to an anesthesia machine in the United States?
• A. 10 to 15 psi
• B. 50 psi
• C. 2000 psi
, • D. 5000 psi
Correct Answer: B. 50 psi
Detailed Rationale: Medical gas pipeline systems supply oxygen, nitrous
oxide, and air to anesthesia machines at a standardized intermediate
operating pressure of approximately 50 pounds per square inch (psi).
QUESTION 5
What does Phase II of a normal capnograph waveform represent?
• A. The baseline zero point during inspiration
• B. The rapid upstroke representing the expiration of mixed dead-
space and alveolar gas
• C. The flat alveolar plateau of steady exhalation
• D. The sudden inspiration of fresh gas
Correct Answer: B. The rapid upstroke representing the expiration of
mixed dead-space and alveolar gas
Detailed Rationale: Phase II represents the transitional phase where
carbon dioxide from the alveoli rapidly mixes with anatomical dead
space gas, creating a sharp upward slope on the capnogram.
QUESTION 6
What is the primary physiologic goal of placing a patient in the
Trendelenburg position during an episode of vasodepressor syncope?
• A. To elevate blood pressure by increasing venous return from the
lower extremities to the heart and brain
• B. To force the patient into a deep general anesthesia state
, • C. To prevent the aspiration of oral saliva
• D. To stimulate the carotid sinus baroreceptors to slow the heart
rate
Correct Answer: A. To elevate blood pressure by increasing venous
return from the lower extremities to the heart and brain
Detailed Rationale: Syncope is characterized by cerebral hypoperfusion
due to peripheral pooling; flattening the torso and elevating the legs
uses gravity to restore venous return and brain blood flow.
QUESTION 7
What is the specific pharmacological reversal agent used to treat acute
respiratory depression caused by narcotic overdose?
• A. Flumazenil
• B. Naloxone
• C. Neostigmine
• D. Atropine
Correct Answer: B. Naloxone
Detailed Rationale: Naloxone is a competitive opioid receptor
antagonist that rapidly reverses central nervous system and respiratory
depression induced by opioid medications.
QUESTION 8
According to the Mallampati airway classification, what anatomical
structures are visualized in a Class III airway?
Frequently Tested QUESTIONs, Verified Answers &
Expert Rationales (2026/2027)
QUESTION 1
Which branch of the trigeminal nerve (CN V) provides sensory
innervation to the mandibular teeth, lower lip, and chin?
• A. Ophthalmic nerve (V1)
• B. Maxillary nerve (V2)
• C. Mandibular nerve (V3)
• D. Facial nerve (CN VII)
Correct Answer: C. Mandibular nerve (V3)
Detailed Rationale: The mandibular division (V3) exits the cranium via
the foramen ovale and supplies sensory innervation to the lower jaw,
teeth, periodontium, lower lip, and anterior two-thirds of the tongue.
QUESTION 2
What is the average normal resting cardiac output for a healthy adult?
• A. 1 to 2 liters per minute
• B. 5 to 6 liters per minute
• C. 12 to 15 liters per minute
• D. 25 liters per minute
,Correct Answer: B. 5 to 6 liters per minute
Detailed Rationale: Cardiac output is the volume of blood pumped by
each ventricle per minute, calculated as heart rate multiplied by stroke
volume, averaging roughly 5 liters per minute at rest in a healthy adult.
QUESTION 3
Where are amide-type local anesthetics (such as lidocaine,
mepivacaine, and bupivacaine) primarily metabolized in the human
body?
• A. Plasma via pseudocholinesterase hydrolysis
• B. Renal glomerular filtration without enzymatic breakdown
• C. Microsomal enzymes in the liver (cytochrome P450 system)
• D. Alveolar capillary membrane exchange
Correct Answer: C. Microsomal enzymes in the liver (cytochrome P450
system)
Detailed Rationale: Unlike ester anesthetics that are hydrolyzed in the
bloodstream, amide local anesthetics depend primarily on hepatic
CYP450 enzymes for biotransformation and clearance.
QUESTION 4
What is the standard intermediate pressure delivered by pipeline hoses
to an anesthesia machine in the United States?
• A. 10 to 15 psi
• B. 50 psi
• C. 2000 psi
, • D. 5000 psi
Correct Answer: B. 50 psi
Detailed Rationale: Medical gas pipeline systems supply oxygen, nitrous
oxide, and air to anesthesia machines at a standardized intermediate
operating pressure of approximately 50 pounds per square inch (psi).
QUESTION 5
What does Phase II of a normal capnograph waveform represent?
• A. The baseline zero point during inspiration
• B. The rapid upstroke representing the expiration of mixed dead-
space and alveolar gas
• C. The flat alveolar plateau of steady exhalation
• D. The sudden inspiration of fresh gas
Correct Answer: B. The rapid upstroke representing the expiration of
mixed dead-space and alveolar gas
Detailed Rationale: Phase II represents the transitional phase where
carbon dioxide from the alveoli rapidly mixes with anatomical dead
space gas, creating a sharp upward slope on the capnogram.
QUESTION 6
What is the primary physiologic goal of placing a patient in the
Trendelenburg position during an episode of vasodepressor syncope?
• A. To elevate blood pressure by increasing venous return from the
lower extremities to the heart and brain
• B. To force the patient into a deep general anesthesia state
, • C. To prevent the aspiration of oral saliva
• D. To stimulate the carotid sinus baroreceptors to slow the heart
rate
Correct Answer: A. To elevate blood pressure by increasing venous
return from the lower extremities to the heart and brain
Detailed Rationale: Syncope is characterized by cerebral hypoperfusion
due to peripheral pooling; flattening the torso and elevating the legs
uses gravity to restore venous return and brain blood flow.
QUESTION 7
What is the specific pharmacological reversal agent used to treat acute
respiratory depression caused by narcotic overdose?
• A. Flumazenil
• B. Naloxone
• C. Neostigmine
• D. Atropine
Correct Answer: B. Naloxone
Detailed Rationale: Naloxone is a competitive opioid receptor
antagonist that rapidly reverses central nervous system and respiratory
depression induced by opioid medications.
QUESTION 8
According to the Mallampati airway classification, what anatomical
structures are visualized in a Class III airway?
