COMSAE FORM 113 PRACTICE EXAM VERSION 2 QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF
Core Domains
Osteopathic Principles, Practice, and Manipulative Treatment
Foundational Biomedical Sciences (Anatomy, Biochemistry, Physiology)
Pathology and Pathophysiology
Pharmacology and Therapeutics
Microbiology and Immunology
Behavioral Science and Public Health
Clinical Diagnosis and Management
Introduction
This comprehensive assessment evaluates critical knowledge and clinical decision-making skills essential for
osteopathic medical practice. The exam is designed to measure your understanding of foundational
biomedical sciences, osteopathic principles, and their application to real-world clinical scenarios. Questions
are presented in multiple-choice and scenario-based formats that emphasize practical application over rote
memorization. Candidates will encounter topics spanning patient presentations, diagnostic reasoning,
treatment planning, regulatory compliance, and professional ethics. The assessment mirrors the rigor of
actual licensing examinations, preparing you for high-stakes decision-making in clinical practice.
,Section One: Questions 1–100
Question 1
A 45-year-old patient presents with chronic lower back pain and somatic dysfunction in the lumbar region.
Which osteopathic manipulative treatment technique is most appropriate for addressing acute lumbar somatic
dysfunction?
A. Muscle energy technique
B. Cranial osteopathy
C. visceral manipulation
D. chelation therapy
🟢 Correct answer: A
🔴 RATIONALE: Muscle energy technique is specifically designed for addressing acute somatic dysfunction in
the musculoskeletal system, particularly in the lumbar region. It involves active patient participation with
controlled resistance, making it ideal for acute lower back pain.
Question 2
Which of the following best describes the primary mechanism of action of beta-blockers in treating
hypertension?
A. Increasing cardiac output through stimulation
B. Blocking sympathetic nervous system effects on the heart
C. Directly relaxing vascular smooth muscle
D. Inhibiting aldosterone secretion
,🟢 Correct answer: B
🔴 RATIONALE: Beta-blockers work by blocking beta-adrenergic receptors, which prevents sympathetic
nervous system stimulation of the heart. This reduces heart rate, cardiac output, and ultimately blood pressure,
making them effective for hypertension management.
Question 3
A patient with type 2 diabetes presents with elevated HbA1c of 8.5%. Which medication class works primarily
by increasing insulin sensitivity in peripheral tissues?
A. Sulfonylureas
B. Biguanides (metformin)
C. DPP-4 inhibitors
D. GLP-1 agonists
🟢 Correct answer: B
🔴 RATIONALE: Metformin (a biguanide) primarily works by increasing insulin sensitivity in peripheral
tissues, particularly muscle and fat, while also reducing hepatic glucose production. This makes it the first-line
treatment for type 2 diabetes.
Question 4
Which anatomical structure separates the thoracic cavity from the abdominal cavity?
, A. Mediastinum
B. Diaphragm
C. Peritoneum
D. Pleura
🟢 Correct answer: B
🔴 RATIONALE: The diaphragm is the muscular structure that forms the boundary between the thoracic and
abdominal cavities. It plays a crucial role in respiration and serves as an important anatomical landmark.
Question 5
A 60-year-old patient presents with unilateral facial weakness, inability to close the eye, and drooping of the
mouth. Which nerve is most likely affected?
A. Trigeminal nerve (CN V)
B. Facial nerve (CN VII)
C. Glossopharyngeal nerve (CN IX)
D. Hypoglossal nerve (CN XII)
🟢 Correct answer: B
🔴 RATIONALE: The facial nerve (CN VII) controls motor function of the facial muscles. Bell's palsy,
characterized by unilateral facial weakness and inability to close the eye, results from facial nerve dysfunction.
Question 6
Which of the following is a key principle of osteopathic medicine regarding the body's relationship to disease?
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF
Core Domains
Osteopathic Principles, Practice, and Manipulative Treatment
Foundational Biomedical Sciences (Anatomy, Biochemistry, Physiology)
Pathology and Pathophysiology
Pharmacology and Therapeutics
Microbiology and Immunology
Behavioral Science and Public Health
Clinical Diagnosis and Management
Introduction
This comprehensive assessment evaluates critical knowledge and clinical decision-making skills essential for
osteopathic medical practice. The exam is designed to measure your understanding of foundational
biomedical sciences, osteopathic principles, and their application to real-world clinical scenarios. Questions
are presented in multiple-choice and scenario-based formats that emphasize practical application over rote
memorization. Candidates will encounter topics spanning patient presentations, diagnostic reasoning,
treatment planning, regulatory compliance, and professional ethics. The assessment mirrors the rigor of
actual licensing examinations, preparing you for high-stakes decision-making in clinical practice.
,Section One: Questions 1–100
Question 1
A 45-year-old patient presents with chronic lower back pain and somatic dysfunction in the lumbar region.
Which osteopathic manipulative treatment technique is most appropriate for addressing acute lumbar somatic
dysfunction?
A. Muscle energy technique
B. Cranial osteopathy
C. visceral manipulation
D. chelation therapy
🟢 Correct answer: A
🔴 RATIONALE: Muscle energy technique is specifically designed for addressing acute somatic dysfunction in
the musculoskeletal system, particularly in the lumbar region. It involves active patient participation with
controlled resistance, making it ideal for acute lower back pain.
Question 2
Which of the following best describes the primary mechanism of action of beta-blockers in treating
hypertension?
A. Increasing cardiac output through stimulation
B. Blocking sympathetic nervous system effects on the heart
C. Directly relaxing vascular smooth muscle
D. Inhibiting aldosterone secretion
,🟢 Correct answer: B
🔴 RATIONALE: Beta-blockers work by blocking beta-adrenergic receptors, which prevents sympathetic
nervous system stimulation of the heart. This reduces heart rate, cardiac output, and ultimately blood pressure,
making them effective for hypertension management.
Question 3
A patient with type 2 diabetes presents with elevated HbA1c of 8.5%. Which medication class works primarily
by increasing insulin sensitivity in peripheral tissues?
A. Sulfonylureas
B. Biguanides (metformin)
C. DPP-4 inhibitors
D. GLP-1 agonists
🟢 Correct answer: B
🔴 RATIONALE: Metformin (a biguanide) primarily works by increasing insulin sensitivity in peripheral
tissues, particularly muscle and fat, while also reducing hepatic glucose production. This makes it the first-line
treatment for type 2 diabetes.
Question 4
Which anatomical structure separates the thoracic cavity from the abdominal cavity?
, A. Mediastinum
B. Diaphragm
C. Peritoneum
D. Pleura
🟢 Correct answer: B
🔴 RATIONALE: The diaphragm is the muscular structure that forms the boundary between the thoracic and
abdominal cavities. It plays a crucial role in respiration and serves as an important anatomical landmark.
Question 5
A 60-year-old patient presents with unilateral facial weakness, inability to close the eye, and drooping of the
mouth. Which nerve is most likely affected?
A. Trigeminal nerve (CN V)
B. Facial nerve (CN VII)
C. Glossopharyngeal nerve (CN IX)
D. Hypoglossal nerve (CN XII)
🟢 Correct answer: B
🔴 RATIONALE: The facial nerve (CN VII) controls motor function of the facial muscles. Bell's palsy,
characterized by unilateral facial weakness and inability to close the eye, results from facial nerve dysfunction.
Question 6
Which of the following is a key principle of osteopathic medicine regarding the body's relationship to disease?
