C A N S C E R T I F I C AT I O N P R E P
LATEST EDITION
CANS Exam
Certified Aesthetic Nurse Specialist
200 Verified Questions with Detailed Correct Answers | Graded A+
200 10 A+
QUESTIONS SECTIONS G R A D E Q UA L I T Y
E X A M I N AT I O N C O N T E N T B L U E P R I N T
1. Anatomy & Physiology of Face and Body (Q1-30) 6. Sclerotherapy and Vein Treatments (Q121-130)
2. Skin Assessment & Patient Consultation (Q31-45) 7. Patient Safety & Complication Management (Q131-150)
3. Botulinum Toxin Therapy (Q46-70) 8. Pharmacology and Topical Treatments (Q151-165)
4. Dermal Fillers and Volumizers (Q71-100) 9. Legal, Ethical & Regulatory Compliance (Q166-180)
5. Energy-Based Devices (Q101-120) 10. Practice Management & Professionalism (Q181-200)
Plastic Surgical Nursing Association (PSNA) Graded A+ Quality
CANS Certification Exam Prep Anatomy · Injection · Safety · Ethics
,CANS Exam | 2026/2027 Latest Edition - Certified Aesthetic Nurse Specialist 200 Verified Questions | Graded A+
CANS Exam | 2026/2027 Latest Edition
Certified Aesthetic Nurse Specialist
200 Verified Questions with Detailed Correct Answers | Graded A+
Aligned with the 2026-2027 Certified Aesthetic Nurse Specialist (CANS) Certification Examination blueprint and Plastic Surgical
Nursing Association (PSNA) standards. This comprehensive practice exam integrates facial anatomy, injection techniques,
botulinum toxin and dermal filler pharmacology, energy-based devices, sclerotherapy, patient safety and complication
management, topical treatments, legal/ethical compliance, and practice management. Each question includes a detailed
rationale grounded in current aesthetic nursing practice, anatomical considerations, and regulatory standards.
Section 1: Anatomy and Physiology of the Face and Body (Q1-Q30)
Facial Anatomy, Facial Muscles, Vascular Anatomy, Nerve Distribution, & Skin Layers
Q1:
Which layer of the skin contains the bulk of collagen (predominantly type I) and elastin that provides structural support and
is the primary target of dermal fillers and resurfacing procedures?
A. Stratum corneum
B. Stratum basale
C. Reticular dermis [CORRECT]
D. Subcutaneous fat
Correct Answer: C
Rationale: The reticular dermis is the deeper, thicker layer of the dermis containing dense collagen
(predominantly type I) and elastin fibers, vasculature, nerve endings, and appendages. It provides tensile strength
and structural support, making it the key target for dermal filler placement (mid-to-deep dermis) and laser
resurfacing procedures. The stratum corneum (A) is the outermost dead keratinocyte layer. The stratum basale
(B) is the deepest epidermal layer responsible for keratinocyte regeneration. Subcutaneous fat (D) lies below the
dermis and provides volume and contour.
Q2:
The facial artery is a branch of which major vessel, and what is its critical anatomical relationship relevant to dermal filler
injection in the nasolabial fold region?
A. Internal carotid artery; courses deep to the nasolabial fold and anastomoses with the angular artery near the medial
canthus
B. External carotid artery; courses through the nasolabial fold and terminates as the angular artery at the medial canthus,
with anastomoses to the dorsal nasal artery and ophthalmic system [CORRECT]
C. Internal jugular vein; runs superficial to the nasolabial fold
D. Maxillary artery; supplies only the cheek region
Correct Answer: B
Page 1
,CANS Exam | 2026/2027 Latest Edition - Certified Aesthetic Nurse Specialist 200 Verified Questions | Graded A+
Rationale: The facial artery is a branch of the external carotid artery, coursing from the mandibular border over
the jaw (where it is palpable at the facial pulse), through the nasolabial fold, and terminating as the angular artery
near the medial canthus. The angular artery anastomoses with the dorsal nasal artery and ultimately connects to
the ophthalmic arterial system (a branch of the internal carotid). This anastomotic connection is the anatomical
basis for the rare but devastating complication of blindness following dermal filler injection in the nasolabial
fold, nasal, or glabellar regions. Understanding this anatomy is essential for safe injection technique, including
aspiration, slow injection, and avoidance of high-pressure boluses in these zones.
Q3:
Which cranial nerve provides motor innervation to the muscles of facial expression, and what is the clinical significance for
botulinum toxin injections?
A. Cranial nerve V (trigeminal) - sensory to the face
B. Cranial nerve VII (facial nerve) - motor to the muscles of facial expression; botulinum toxin injected into these
muscles inhibits acetylcholine release at the neuromuscular junction [CORRECT]
C. Cranial nerve V (trigeminal) - motor to facial muscles
D. Cranial nerve XI (accessory) - motor to facial muscles
Correct Answer: B
Rationale: Cranial nerve VII (facial nerve) provides motor innervation to the muscles of facial expression
through its five terminal branches (temporal, zygomatic, buccal, marginal mandibular, cervical). Botulinum toxin
works by inhibiting acetylcholine release at the neuromuscular junction (NMJ) of these muscles, causing
temporary chemodenervation and reduction in dynamic rhytides. The trigeminal nerve (CN V) provides sensory
innervation to the face (A, C incorrect) and motor to muscles of mastication (masseter, temporalis, medial/lateral
pterygoids). Understanding CN VII anatomy is critical for avoiding diffusion-related complications (e.g., ptosis
from frontalis injections affecting levator palpebrae).
Q4:
Which muscle of facial expression is the primary target for botulinum toxin injection in the treatment of glabellar rhytides
(frown lines), and what is its anatomical course?
A. Orbicularis oculi - circular muscle around the eye
B. Corrugator supercilii - arises from the medial orbital rim, inserts into the skin of the mid-brow, drawing the brow
medially and inferiorly to create vertical frown lines [CORRECT]
C. Procerus - vertically oriented muscle at the root of nose creating horizontal nasal lines
D. Frontalis - elevates the eyebrows creating horizontal forehead lines
Correct Answer: B
Rationale: The corrugator supercilii arises from the medial orbital rim (frontal bone) and inserts into the skin of
the mid-brow, drawing the brow medially and inferiorly, creating the vertical glabellar rhytides ('11 lines').
Standard glabellar botulinum toxin injection involves 5 sites: 2 in each corrugator (20 U onabotulinumtoxinA per
side, 1 cm above the orbital rim, ~0.5 cm lateral to the midline), and 1 in the procerus (C). The procerus creates
horizontal nasoglabellar lines. Frontalis (D) creates horizontal forehead lines. Orbicularis oculi (A) creates crow's
feet when contracting. Combining corrugator and procerus injections provides comprehensive glabellar
treatment.
Q5:
Page 2
, CANS Exam | 2026/2027 Latest Edition - Certified Aesthetic Nurse Specialist 200 Verified Questions | Graded A+
Which vascular structure is the most critical to avoid during filler injection in the glabella, due to its direct communication
with the ophthalmic artery and risk of blindness?
A. Facial vein
B. Transverse facial artery
C. Supratrochlear artery and dorsal nasal artery, both branches of the ophthalmic artery system [CORRECT]
D. Superficial temporal artery
Correct Answer: C
Rationale: The supratrochlear artery and dorsal nasal artery are terminal branches of the ophthalmic artery
(which arises from the internal carotid artery). Filler injection into these vessels, even under low pressure, can
retrograde flow into the ophthalmic artery and then antegrade into the central retinal artery, causing retinal artery
occlusion and irreversible blindness. This is why the glabella, nasal dorsum, and nasolabial fold are considered
high-risk zones for filler injection. The aesthetic nurse must use meticulous technique: aspiration, slow
low-pressure injection, small boluses, deep supraperiosteal placement, and knowledge of danger zones. The
facial vein (A), transverse facial artery (B), and superficial temporal artery (D) do not have direct ophthalmic
anastomoses.
Q6:
The safe injection depth for hyaluronic acid filler in the tear trough (infraorbital) region is best described as:
A. Superficial dermis to avoid vascular injury
B. Supraperiosteal (just above the orbital rim bone) using a cannula, as the infraorbital artery and inferior orbital artery
run superficially in this region [CORRECT]
C. Subcutaneous fat plane, mid-depth
D. Intradermal plane only
Correct Answer: B
Rationale: The tear trough is a high-risk area for vascular complications due to the proximity of the infraorbital
artery (emerging from the infraorbital foramen) and the inferior orbital artery. Safe injection technique uses
supraperiosteal placement (just above the orbital rim bone) with a cannula, where the vessels are typically above
this plane. Aspiration is essential, slow low-pressure injection, and small boluses minimize risk. The aesthetic
nurse must understand that the orbital rim is a critical anatomical landmark - injection should remain below the
orbital rim, never superior, to avoid intraorbital vascular injury. Superficial dermal placement (A) risks visible
Tyndall effect and contour irregularities. Subcutaneous (C) and intradermal (D) planes are too superficial and
risk vascular injury or visible product.
Q7:
Which of the following best describes the Glogau classification system used in aesthetic patient assessment?
A. Classifies skin type (I-VI) based on response to UV exposure
B. Classifies photoaging severity into four groups (I-IV) based on degree of photodamage (wrinkles, dyschromia,
keratoses) [CORRECT]
C. Classifies facial fat compartments
D. Classifies vascular lesions
Correct Answer: B
Page 3
LATEST EDITION
CANS Exam
Certified Aesthetic Nurse Specialist
200 Verified Questions with Detailed Correct Answers | Graded A+
200 10 A+
QUESTIONS SECTIONS G R A D E Q UA L I T Y
E X A M I N AT I O N C O N T E N T B L U E P R I N T
1. Anatomy & Physiology of Face and Body (Q1-30) 6. Sclerotherapy and Vein Treatments (Q121-130)
2. Skin Assessment & Patient Consultation (Q31-45) 7. Patient Safety & Complication Management (Q131-150)
3. Botulinum Toxin Therapy (Q46-70) 8. Pharmacology and Topical Treatments (Q151-165)
4. Dermal Fillers and Volumizers (Q71-100) 9. Legal, Ethical & Regulatory Compliance (Q166-180)
5. Energy-Based Devices (Q101-120) 10. Practice Management & Professionalism (Q181-200)
Plastic Surgical Nursing Association (PSNA) Graded A+ Quality
CANS Certification Exam Prep Anatomy · Injection · Safety · Ethics
,CANS Exam | 2026/2027 Latest Edition - Certified Aesthetic Nurse Specialist 200 Verified Questions | Graded A+
CANS Exam | 2026/2027 Latest Edition
Certified Aesthetic Nurse Specialist
200 Verified Questions with Detailed Correct Answers | Graded A+
Aligned with the 2026-2027 Certified Aesthetic Nurse Specialist (CANS) Certification Examination blueprint and Plastic Surgical
Nursing Association (PSNA) standards. This comprehensive practice exam integrates facial anatomy, injection techniques,
botulinum toxin and dermal filler pharmacology, energy-based devices, sclerotherapy, patient safety and complication
management, topical treatments, legal/ethical compliance, and practice management. Each question includes a detailed
rationale grounded in current aesthetic nursing practice, anatomical considerations, and regulatory standards.
Section 1: Anatomy and Physiology of the Face and Body (Q1-Q30)
Facial Anatomy, Facial Muscles, Vascular Anatomy, Nerve Distribution, & Skin Layers
Q1:
Which layer of the skin contains the bulk of collagen (predominantly type I) and elastin that provides structural support and
is the primary target of dermal fillers and resurfacing procedures?
A. Stratum corneum
B. Stratum basale
C. Reticular dermis [CORRECT]
D. Subcutaneous fat
Correct Answer: C
Rationale: The reticular dermis is the deeper, thicker layer of the dermis containing dense collagen
(predominantly type I) and elastin fibers, vasculature, nerve endings, and appendages. It provides tensile strength
and structural support, making it the key target for dermal filler placement (mid-to-deep dermis) and laser
resurfacing procedures. The stratum corneum (A) is the outermost dead keratinocyte layer. The stratum basale
(B) is the deepest epidermal layer responsible for keratinocyte regeneration. Subcutaneous fat (D) lies below the
dermis and provides volume and contour.
Q2:
The facial artery is a branch of which major vessel, and what is its critical anatomical relationship relevant to dermal filler
injection in the nasolabial fold region?
A. Internal carotid artery; courses deep to the nasolabial fold and anastomoses with the angular artery near the medial
canthus
B. External carotid artery; courses through the nasolabial fold and terminates as the angular artery at the medial canthus,
with anastomoses to the dorsal nasal artery and ophthalmic system [CORRECT]
C. Internal jugular vein; runs superficial to the nasolabial fold
D. Maxillary artery; supplies only the cheek region
Correct Answer: B
Page 1
,CANS Exam | 2026/2027 Latest Edition - Certified Aesthetic Nurse Specialist 200 Verified Questions | Graded A+
Rationale: The facial artery is a branch of the external carotid artery, coursing from the mandibular border over
the jaw (where it is palpable at the facial pulse), through the nasolabial fold, and terminating as the angular artery
near the medial canthus. The angular artery anastomoses with the dorsal nasal artery and ultimately connects to
the ophthalmic arterial system (a branch of the internal carotid). This anastomotic connection is the anatomical
basis for the rare but devastating complication of blindness following dermal filler injection in the nasolabial
fold, nasal, or glabellar regions. Understanding this anatomy is essential for safe injection technique, including
aspiration, slow injection, and avoidance of high-pressure boluses in these zones.
Q3:
Which cranial nerve provides motor innervation to the muscles of facial expression, and what is the clinical significance for
botulinum toxin injections?
A. Cranial nerve V (trigeminal) - sensory to the face
B. Cranial nerve VII (facial nerve) - motor to the muscles of facial expression; botulinum toxin injected into these
muscles inhibits acetylcholine release at the neuromuscular junction [CORRECT]
C. Cranial nerve V (trigeminal) - motor to facial muscles
D. Cranial nerve XI (accessory) - motor to facial muscles
Correct Answer: B
Rationale: Cranial nerve VII (facial nerve) provides motor innervation to the muscles of facial expression
through its five terminal branches (temporal, zygomatic, buccal, marginal mandibular, cervical). Botulinum toxin
works by inhibiting acetylcholine release at the neuromuscular junction (NMJ) of these muscles, causing
temporary chemodenervation and reduction in dynamic rhytides. The trigeminal nerve (CN V) provides sensory
innervation to the face (A, C incorrect) and motor to muscles of mastication (masseter, temporalis, medial/lateral
pterygoids). Understanding CN VII anatomy is critical for avoiding diffusion-related complications (e.g., ptosis
from frontalis injections affecting levator palpebrae).
Q4:
Which muscle of facial expression is the primary target for botulinum toxin injection in the treatment of glabellar rhytides
(frown lines), and what is its anatomical course?
A. Orbicularis oculi - circular muscle around the eye
B. Corrugator supercilii - arises from the medial orbital rim, inserts into the skin of the mid-brow, drawing the brow
medially and inferiorly to create vertical frown lines [CORRECT]
C. Procerus - vertically oriented muscle at the root of nose creating horizontal nasal lines
D. Frontalis - elevates the eyebrows creating horizontal forehead lines
Correct Answer: B
Rationale: The corrugator supercilii arises from the medial orbital rim (frontal bone) and inserts into the skin of
the mid-brow, drawing the brow medially and inferiorly, creating the vertical glabellar rhytides ('11 lines').
Standard glabellar botulinum toxin injection involves 5 sites: 2 in each corrugator (20 U onabotulinumtoxinA per
side, 1 cm above the orbital rim, ~0.5 cm lateral to the midline), and 1 in the procerus (C). The procerus creates
horizontal nasoglabellar lines. Frontalis (D) creates horizontal forehead lines. Orbicularis oculi (A) creates crow's
feet when contracting. Combining corrugator and procerus injections provides comprehensive glabellar
treatment.
Q5:
Page 2
, CANS Exam | 2026/2027 Latest Edition - Certified Aesthetic Nurse Specialist 200 Verified Questions | Graded A+
Which vascular structure is the most critical to avoid during filler injection in the glabella, due to its direct communication
with the ophthalmic artery and risk of blindness?
A. Facial vein
B. Transverse facial artery
C. Supratrochlear artery and dorsal nasal artery, both branches of the ophthalmic artery system [CORRECT]
D. Superficial temporal artery
Correct Answer: C
Rationale: The supratrochlear artery and dorsal nasal artery are terminal branches of the ophthalmic artery
(which arises from the internal carotid artery). Filler injection into these vessels, even under low pressure, can
retrograde flow into the ophthalmic artery and then antegrade into the central retinal artery, causing retinal artery
occlusion and irreversible blindness. This is why the glabella, nasal dorsum, and nasolabial fold are considered
high-risk zones for filler injection. The aesthetic nurse must use meticulous technique: aspiration, slow
low-pressure injection, small boluses, deep supraperiosteal placement, and knowledge of danger zones. The
facial vein (A), transverse facial artery (B), and superficial temporal artery (D) do not have direct ophthalmic
anastomoses.
Q6:
The safe injection depth for hyaluronic acid filler in the tear trough (infraorbital) region is best described as:
A. Superficial dermis to avoid vascular injury
B. Supraperiosteal (just above the orbital rim bone) using a cannula, as the infraorbital artery and inferior orbital artery
run superficially in this region [CORRECT]
C. Subcutaneous fat plane, mid-depth
D. Intradermal plane only
Correct Answer: B
Rationale: The tear trough is a high-risk area for vascular complications due to the proximity of the infraorbital
artery (emerging from the infraorbital foramen) and the inferior orbital artery. Safe injection technique uses
supraperiosteal placement (just above the orbital rim bone) with a cannula, where the vessels are typically above
this plane. Aspiration is essential, slow low-pressure injection, and small boluses minimize risk. The aesthetic
nurse must understand that the orbital rim is a critical anatomical landmark - injection should remain below the
orbital rim, never superior, to avoid intraorbital vascular injury. Superficial dermal placement (A) risks visible
Tyndall effect and contour irregularities. Subcutaneous (C) and intradermal (D) planes are too superficial and
risk vascular injury or visible product.
Q7:
Which of the following best describes the Glogau classification system used in aesthetic patient assessment?
A. Classifies skin type (I-VI) based on response to UV exposure
B. Classifies photoaging severity into four groups (I-IV) based on degree of photodamage (wrinkles, dyschromia,
keratoses) [CORRECT]
C. Classifies facial fat compartments
D. Classifies vascular lesions
Correct Answer: B
Page 3
