COMLEX-USA Level 1 Osteopathic
Medicine 150 Advanced Multiple-
Choice Questions with Rationales
for Foundational Biomedical
Sciences and Osteopathic
Principles and Practice Mastery.
1. (Questions 1–20)
2. (Questions 21–40)
3. (Questions 41–60)
4. (Questions 61–80)
5. (Questions 81–100)
6. (Questions 101–115)
7. (Questions
116–130)
8. (Questions 131–150)
, A first-year osteopathic medical student is asked to explain the fundamental
principle that distinguishes osteopathic medicine from allopathic medicine. Which of the following best
describes this principle?
A. The body is a self-healing mechanism that requires external intervention to maintain homeostasis.
B. Structure and function are reciprocally interrelated, and the body possesses self-regulatory
mechanisms.
C. Disease is primarily caused by external pathogens that must be eradicated through pharmacologic
intervention.
D. The mind and body are separate entities that must be treated independently.
The osteopathic philosophy is founded on four tenets: (1) the body is a unit, (2) structure
and function are reciprocally interrelated, (3) the body possesses self-regulatory and self-healing
mechanisms, and (4) rational treatment is based on these principles. Option B correctly captures the
reciprocal relationship between structure and function, which is a defining principle of osteopathic
medicine. Option A misrepresents the self-healing capacity of the body. Option C contradicts the
osteopathic emphasis on the body's inherent healing abilities. Option D misrepresents the holistic
approach of osteopathic medicine.
Which of the following statements best reflects the osteopathic tenet that "the
body is a unit"?
A. The musculoskeletal system functions independently of the visceral organs.
B. Psychological factors have no influence on somatic dysfunction.
C. All body systems are interconnected, and dysfunction in one system can affect others.
D. Treatment should focus exclusively on the symptomatic area.
The osteopathic tenet that "the body is a unit" emphasizes the interconnectedness of all
body systems. Dysfunction in one system, such as the musculoskeletal system, can influence the
function of other systems, including the visceral and neurological systems. Option C correctly reflects
this holistic perspective. Options A, B, and D all contradict the principle of unity by suggesting
independence or separation of body systems.
, A 45-year-old woman presents with chronic low back pain. She reports that her
symptoms began after a fall and have persisted despite NSAID therapy. According to osteopathic
principles, what is the most appropriate initial approach?
A. Referral for surgical consultation without further evaluation.
B. Prescription of opioid analgesics for pain management.
C. Comprehensive structural examination to identify somatic dysfunction.
D. Immediate initiation of physical therapy without diagnostic assessment.
Osteopathic physicians are trained to perform a comprehensive structural examination
to identify somatic dysfunction, which may be contributing to the patient's symptoms. This approach
aligns with the osteopathic principle that structure and function are interrelated. Option A bypasses the
osteopathic diagnostic process. Option B does not address the underlying structural component. Option
D skips the necessary diagnostic evaluation.
Which of the following is NOT one of the four core tenets of osteopathic
medicine?
A. The body is a unit.
B. Structure and function are reciprocally interrelated.
C. The body possesses self-regulatory and self-healing mechanisms.
D. Disease is solely caused by genetic mutations.
The four tenets of osteopathic medicine are: (1) the body is a unit, (2) structure and
function are reciprocally interrelated, (3) the body possesses self-regulatory and self-healing
mechanisms, and (4) rational treatment is based on these principles. Option D is not a core osteopathic
tenet; osteopathic philosophy recognizes multifactorial causes of disease, including but not limited to
genetic, environmental, and lifestyle factors.
During a structural examination, a physician identifies a somatic dysfunction in the
thoracic spine. According to the osteopathic principle of structure-function reciprocity, which of the
following is most likely?
A. The dysfunction is purely musculoskeletal and has no visceral implications.
B. The dysfunction may be associated with visceral pathology at the corresponding spinal level.
C. The dysfunction will always resolve spontaneously without treatment.
D. The dysfunction is unrelated to the patient's presenting symptoms.
, The principle of structure-function reciprocity suggests that somatic dysfunction in the
spine may be associated with visceral pathology through viscerosomatic reflexes. The spinal segment
corresponding to the dysfunction may reflect the visceral organ's autonomic innervation. Options A, C,
and D contradict this foundational osteopathic principle.
A 60-year-old man presents with hypertension and reports chronic neck stiffness.
On examination, you note restricted motion at the C1–C2 segment. According to osteopathic principles,
which of the following is the most appropriate consideration?
A. The neck stiffness is unrelated to his hypertension.
B. The C1–C2 dysfunction may contribute to autonomic dysregulation affecting blood pressure.
C. The patient should be referred immediately for cervical spine surgery.
D. Osteopathic manipulative treatment is contraindicated in hypertension.
The upper cervical spine (C1–C2) has anatomical connections with the vagus nerve and
sympathetic chain. Somatic dysfunction in this region may influence autonomic tone, potentially
affecting blood pressure regulation. Osteopathic manipulative treatment may be beneficial in
addressing this dysfunction as part of a comprehensive treatment plan. Option A ignores the potential
somatovisceral relationship. Option C is premature. Option D is incorrect; OMT is not contraindicated in
hypertension.
Which of the following best describes the osteopathic approach to patient care?
A. Focus exclusively on the chief complaint.
B. Treat the patient as a whole, considering body, mind, and spirit.
C. Prioritize laboratory findings over physical examination.
D. Limit treatment to pharmacologic interventions.
The osteopathic approach to patient care is holistic, considering the patient as a whole—
body, mind, and spirit. This philosophy recognizes the interconnectedness of all aspects of health.
Option A is reductionist. Option C de-emphasizes the importance of the physical examination. Option D
excludes osteopathic manipulative treatment and other non-pharmacologic modalities.
Medicine 150 Advanced Multiple-
Choice Questions with Rationales
for Foundational Biomedical
Sciences and Osteopathic
Principles and Practice Mastery.
1. (Questions 1–20)
2. (Questions 21–40)
3. (Questions 41–60)
4. (Questions 61–80)
5. (Questions 81–100)
6. (Questions 101–115)
7. (Questions
116–130)
8. (Questions 131–150)
, A first-year osteopathic medical student is asked to explain the fundamental
principle that distinguishes osteopathic medicine from allopathic medicine. Which of the following best
describes this principle?
A. The body is a self-healing mechanism that requires external intervention to maintain homeostasis.
B. Structure and function are reciprocally interrelated, and the body possesses self-regulatory
mechanisms.
C. Disease is primarily caused by external pathogens that must be eradicated through pharmacologic
intervention.
D. The mind and body are separate entities that must be treated independently.
The osteopathic philosophy is founded on four tenets: (1) the body is a unit, (2) structure
and function are reciprocally interrelated, (3) the body possesses self-regulatory and self-healing
mechanisms, and (4) rational treatment is based on these principles. Option B correctly captures the
reciprocal relationship between structure and function, which is a defining principle of osteopathic
medicine. Option A misrepresents the self-healing capacity of the body. Option C contradicts the
osteopathic emphasis on the body's inherent healing abilities. Option D misrepresents the holistic
approach of osteopathic medicine.
Which of the following statements best reflects the osteopathic tenet that "the
body is a unit"?
A. The musculoskeletal system functions independently of the visceral organs.
B. Psychological factors have no influence on somatic dysfunction.
C. All body systems are interconnected, and dysfunction in one system can affect others.
D. Treatment should focus exclusively on the symptomatic area.
The osteopathic tenet that "the body is a unit" emphasizes the interconnectedness of all
body systems. Dysfunction in one system, such as the musculoskeletal system, can influence the
function of other systems, including the visceral and neurological systems. Option C correctly reflects
this holistic perspective. Options A, B, and D all contradict the principle of unity by suggesting
independence or separation of body systems.
, A 45-year-old woman presents with chronic low back pain. She reports that her
symptoms began after a fall and have persisted despite NSAID therapy. According to osteopathic
principles, what is the most appropriate initial approach?
A. Referral for surgical consultation without further evaluation.
B. Prescription of opioid analgesics for pain management.
C. Comprehensive structural examination to identify somatic dysfunction.
D. Immediate initiation of physical therapy without diagnostic assessment.
Osteopathic physicians are trained to perform a comprehensive structural examination
to identify somatic dysfunction, which may be contributing to the patient's symptoms. This approach
aligns with the osteopathic principle that structure and function are interrelated. Option A bypasses the
osteopathic diagnostic process. Option B does not address the underlying structural component. Option
D skips the necessary diagnostic evaluation.
Which of the following is NOT one of the four core tenets of osteopathic
medicine?
A. The body is a unit.
B. Structure and function are reciprocally interrelated.
C. The body possesses self-regulatory and self-healing mechanisms.
D. Disease is solely caused by genetic mutations.
The four tenets of osteopathic medicine are: (1) the body is a unit, (2) structure and
function are reciprocally interrelated, (3) the body possesses self-regulatory and self-healing
mechanisms, and (4) rational treatment is based on these principles. Option D is not a core osteopathic
tenet; osteopathic philosophy recognizes multifactorial causes of disease, including but not limited to
genetic, environmental, and lifestyle factors.
During a structural examination, a physician identifies a somatic dysfunction in the
thoracic spine. According to the osteopathic principle of structure-function reciprocity, which of the
following is most likely?
A. The dysfunction is purely musculoskeletal and has no visceral implications.
B. The dysfunction may be associated with visceral pathology at the corresponding spinal level.
C. The dysfunction will always resolve spontaneously without treatment.
D. The dysfunction is unrelated to the patient's presenting symptoms.
, The principle of structure-function reciprocity suggests that somatic dysfunction in the
spine may be associated with visceral pathology through viscerosomatic reflexes. The spinal segment
corresponding to the dysfunction may reflect the visceral organ's autonomic innervation. Options A, C,
and D contradict this foundational osteopathic principle.
A 60-year-old man presents with hypertension and reports chronic neck stiffness.
On examination, you note restricted motion at the C1–C2 segment. According to osteopathic principles,
which of the following is the most appropriate consideration?
A. The neck stiffness is unrelated to his hypertension.
B. The C1–C2 dysfunction may contribute to autonomic dysregulation affecting blood pressure.
C. The patient should be referred immediately for cervical spine surgery.
D. Osteopathic manipulative treatment is contraindicated in hypertension.
The upper cervical spine (C1–C2) has anatomical connections with the vagus nerve and
sympathetic chain. Somatic dysfunction in this region may influence autonomic tone, potentially
affecting blood pressure regulation. Osteopathic manipulative treatment may be beneficial in
addressing this dysfunction as part of a comprehensive treatment plan. Option A ignores the potential
somatovisceral relationship. Option C is premature. Option D is incorrect; OMT is not contraindicated in
hypertension.
Which of the following best describes the osteopathic approach to patient care?
A. Focus exclusively on the chief complaint.
B. Treat the patient as a whole, considering body, mind, and spirit.
C. Prioritize laboratory findings over physical examination.
D. Limit treatment to pharmacologic interventions.
The osteopathic approach to patient care is holistic, considering the patient as a whole—
body, mind, and spirit. This philosophy recognizes the interconnectedness of all aspects of health.
Option A is reductionist. Option C de-emphasizes the importance of the physical examination. Option D
excludes osteopathic manipulative treatment and other non-pharmacologic modalities.
