Page 1 of 68
ALPP CERTIFIED LACTATION COUNSELOR (CLC)
EXAM BANK: 100 QUESTIONS WITH DETAILED
RATIONALES
Human Lactation Science / Clinical Breastfeeding Management
Exam coverage:
✓ Section 1: Anatomy and Physiology of Human Lactation
(Questions 1–25): Breast anatomy, lactogenesis stages,
hormonal regulation, milk composition, and milk ejection
reflex.
✓ Section 2: Breastfeeding Assessment and Management
(Questions 26–50): Latch assessment, milk transfer, infant
output, common challenges, positioning, and milk storage.
✓ Section 3: Counseling, Communication, and Education
Skills (Questions 51–75): Active listening, empathy,
motivational interviewing, cultural competence,
documentation, and teaching methods.
✓ Section 4: Public Health, Ethics, and Professional Practice
(Questions 76–100): WHO Code, Baby-Friendly Hospital
Initiative, public health interventions, ethics, scope of
practice, and professional development.
Section 1: Anatomy and Physiology of Human Lactation
(Questions 1–25)
, Page 2 of 68
Question 1: A first-time mother asks the lactation counselor
when her body starts making milk for her baby. The counselor
explains that secretory differentiation (Lactogenesis Stage I)
typically begins:
A. Immediately after the baby's first feeding
B. Around mid-pregnancy (16–22 weeks gestation)
C. At the moment of placental delivery
D. During the first 24 hours postpartum
CORRECT ANSWER: B
RATIONALE: Lactogenesis Stage I (secretory differentiation)
begins around mid-pregnancy (16–22 weeks gestation) when
the breasts become capable of milk secretion under the
influence of prolactin, estrogen, progesterone, and human
placental lactogen. Colostrum production begins during this
stage, though high levels of progesterone inhibit full milk
secretion until after placental delivery. Option A is incorrect
because milk production begins long before the first feeding.
Option C describes Lactogenesis Stage II. Option D is incorrect
because copious milk secretion typically begins 30–72 hours
postpartum.
Question 2: Lactogenesis Stage II (secretory activation) is
triggered primarily by:
, Page 3 of 68
A. Increased maternal caloric intake
B. The sudden drop in progesterone following placental delivery
C. Prolactin release from the anterior pituitary
D. Infant suckling
CORRECT ANSWER: B
RATIONALE: Lactogenesis Stage II is triggered by the sudden
drop in progesterone that occurs after delivery of the placenta,
which removes the inhibition on prolactin's milk-stimulating
effects. Option A is incorrect because caloric intake does not
trigger secretory activation. Option C is incorrect because
prolactin is necessary but the trigger is the withdrawal of
progesterone. Option D is incorrect because suckling maintains
milk production after activation, not the trigger for Stage II.
Question 3: Within the breast, the cells that synthesize milk
components are the:
A. Montgomery glands
B. Sebaceous glands
C. Lactocytes lining the alveoli
D. Myoepithelial cells
CORRECT ANSWER: C
, Page 4 of 68
RATIONALE: Lactocytes (secretory epithelial cells) line the
alveoli and synthesize milk constituents, including proteins,
lactose, and fat. Option A is incorrect because Montgomery
glands are sebaceous glands on the areola. Option B is
incorrect because sebaceous glands produce sebum. Option D
is incorrect because myoepithelial cells surround the alveoli
and contract to eject milk.
Question 4: Which cells contract to push milk from the alveoli
into the ductal system during milk ejection?
A. Lactocytes
B. Fibroblasts
C. Adipocytes
D. Myoepithelial cells
CORRECT ANSWER: D
RATIONALE: Myoepithelial cells wrap around the alveoli and
contract in response to oxytocin, squeezing milk into the ductal
system. Option A is incorrect because lactocytes synthesize
milk. Option B is incorrect because fibroblasts produce
connective tissue. Option C is incorrect because adipocytes
store fat.
ALPP CERTIFIED LACTATION COUNSELOR (CLC)
EXAM BANK: 100 QUESTIONS WITH DETAILED
RATIONALES
Human Lactation Science / Clinical Breastfeeding Management
Exam coverage:
✓ Section 1: Anatomy and Physiology of Human Lactation
(Questions 1–25): Breast anatomy, lactogenesis stages,
hormonal regulation, milk composition, and milk ejection
reflex.
✓ Section 2: Breastfeeding Assessment and Management
(Questions 26–50): Latch assessment, milk transfer, infant
output, common challenges, positioning, and milk storage.
✓ Section 3: Counseling, Communication, and Education
Skills (Questions 51–75): Active listening, empathy,
motivational interviewing, cultural competence,
documentation, and teaching methods.
✓ Section 4: Public Health, Ethics, and Professional Practice
(Questions 76–100): WHO Code, Baby-Friendly Hospital
Initiative, public health interventions, ethics, scope of
practice, and professional development.
Section 1: Anatomy and Physiology of Human Lactation
(Questions 1–25)
, Page 2 of 68
Question 1: A first-time mother asks the lactation counselor
when her body starts making milk for her baby. The counselor
explains that secretory differentiation (Lactogenesis Stage I)
typically begins:
A. Immediately after the baby's first feeding
B. Around mid-pregnancy (16–22 weeks gestation)
C. At the moment of placental delivery
D. During the first 24 hours postpartum
CORRECT ANSWER: B
RATIONALE: Lactogenesis Stage I (secretory differentiation)
begins around mid-pregnancy (16–22 weeks gestation) when
the breasts become capable of milk secretion under the
influence of prolactin, estrogen, progesterone, and human
placental lactogen. Colostrum production begins during this
stage, though high levels of progesterone inhibit full milk
secretion until after placental delivery. Option A is incorrect
because milk production begins long before the first feeding.
Option C describes Lactogenesis Stage II. Option D is incorrect
because copious milk secretion typically begins 30–72 hours
postpartum.
Question 2: Lactogenesis Stage II (secretory activation) is
triggered primarily by:
, Page 3 of 68
A. Increased maternal caloric intake
B. The sudden drop in progesterone following placental delivery
C. Prolactin release from the anterior pituitary
D. Infant suckling
CORRECT ANSWER: B
RATIONALE: Lactogenesis Stage II is triggered by the sudden
drop in progesterone that occurs after delivery of the placenta,
which removes the inhibition on prolactin's milk-stimulating
effects. Option A is incorrect because caloric intake does not
trigger secretory activation. Option C is incorrect because
prolactin is necessary but the trigger is the withdrawal of
progesterone. Option D is incorrect because suckling maintains
milk production after activation, not the trigger for Stage II.
Question 3: Within the breast, the cells that synthesize milk
components are the:
A. Montgomery glands
B. Sebaceous glands
C. Lactocytes lining the alveoli
D. Myoepithelial cells
CORRECT ANSWER: C
, Page 4 of 68
RATIONALE: Lactocytes (secretory epithelial cells) line the
alveoli and synthesize milk constituents, including proteins,
lactose, and fat. Option A is incorrect because Montgomery
glands are sebaceous glands on the areola. Option B is
incorrect because sebaceous glands produce sebum. Option D
is incorrect because myoepithelial cells surround the alveoli
and contract to eject milk.
Question 4: Which cells contract to push milk from the alveoli
into the ductal system during milk ejection?
A. Lactocytes
B. Fibroblasts
C. Adipocytes
D. Myoepithelial cells
CORRECT ANSWER: D
RATIONALE: Myoepithelial cells wrap around the alveoli and
contract in response to oxytocin, squeezing milk into the ductal
system. Option A is incorrect because lactocytes synthesize
milk. Option B is incorrect because fibroblasts produce
connective tissue. Option C is incorrect because adipocytes
store fat.
