• Chamberlain BIOS 255: Anatomy and Physiology III Review | A+ Questions and Answers

1. Case Study: A 70-year-old male presents with a sudden onset of
severe chest pain radiating to the left arm and jaw. He is sweaty
and anxious.
Question: What is the most likely cause of these symptoms?
A. Aortic aneurysm
B. Myocardial infarction
C. Pulmonary embolism
D. Gastritis
Answer: B. Myocardial infarction
Rationale: The symptoms of chest pain radiating to the left arm
and jaw, along with sweating and anxiety, are classic signs of a
myocardial infarction (heart attack).

2. Case Study: A 22-year-old female presents with fatigue, pallor,
and shortness of breath. She has a history of heavy menstrual
periods.
Question: What is the most likely cause of her symptoms?
A. Anemia due to iron deficiency
B. Hypothyroidism
C. Vitamin B12 deficiency
D. Hemophilia
Answer: A. Anemia due to iron deficiency
Rationale: Iron deficiency anemia is common in women with heavy
menstrual bleeding and presents with symptoms like fatigue,
pallor, and shortness of breath.

3. Case Study: A 55-year-old male with a history of smoking
presents with shortness of breath and chronic cough that has
persisted for years. His oxygen saturation is low.
Question: Which condition is most likely causing these
symptoms?

,A. Asthma
B. Emphysema
C. Chronic bronchitis
D. Pneumonia
Answer: B. Emphysema
Rationale: Emphysema is a type of chronic obstructive pulmonary
disease (COPD), often caused by smoking, and it presents with
chronic cough and shortness of breath.

4. Case Study: A 30-year-old female presents with muscle
weakness, fatigue, and a rash around her eyes.
Question: What is the most likely diagnosis?
A. Myasthenia gravis
B. Dermatomyositis
C. Lupus erythematosus
D. Multiple sclerosis
Answer: B. Dermatomyositis
Rationale: Dermatomyositis is characterized by muscle weakness
and a characteristic rash, often around the eyes (heliotrope rash).

5. Case Study: A 25-year-old male presents with persistent
headaches, visual disturbances, and an enlarged sella turcica on
imaging.
Question: What condition is most likely responsible for these
findings?
A. Brain tumor
B. Pituitary adenoma
C. Migraine
D. Sinusitis
Answer: B. Pituitary adenoma
Rationale: A pituitary adenoma can cause headaches, visual
disturbances (due to pressure on the optic chiasm), and
enlargement of the sella turcica, where the pituitary gland resides.

, 6. Case Study: A 60-year-old female presents with unintentional
weight loss, persistent cough, and hemoptysis. She is a smoker.
Question: What is the most likely diagnosis?
A. Chronic bronchitis
B. Tuberculosis
C. Lung cancer
D. Pneumonia
Answer: C. Lung cancer
Rationale: Smoking is a major risk factor for lung cancer, which
can present with a persistent cough, weight loss, and hemoptysis
(coughing up blood).

7. Case Study: A 45-year-old male presents with abdominal pain,
bloating, and diarrhea. He has a family history of colon cancer.
Question: What is the most likely diagnosis?
A. Irritable bowel syndrome (IBS)
B. Inflammatory bowel disease (IBD)
C. Colon cancer
D. Lactose intolerance
Answer: B. Inflammatory bowel disease (IBD)
Rationale: Inflammatory bowel disease, including Crohn’s disease
and ulcerative colitis, presents with abdominal pain, diarrhea, and
bloating, and it has a strong genetic component.

8. Case Study: A 30-year-old male complains of increased thirst,
frequent urination, and fatigue. Laboratory tests reveal high blood
glucose levels.
Question: Which organ is most responsible for regulating the
patient’s blood glucose levels?
A. Liver
B. Pancreas
C. Kidneys