Question 1

Which of the following types of tumors is the most common tumor originating in the mediastinum?

Accepted Answer

Although rare, thymomas are the most common type of thymic cancer originating in mediastinum. They arise from thymic epithelial cells, which make up the covering of the thymus.

Question 2

Which of the following is the most common type of cyanotic congenital heart disease?

Accepted Answer

Tetralogy of Fallot is the most common heart defect in children. The condition causes mixing of oxygen-poor blood with the oxygen-rich blood being pumped out of the heart and into the circulatory system of blood vessels.

Question 3

Anterior mediastinal tumours include all of the following EXCEPT:

Accepted Answer

Different types of anterior mediastinal tumours include thymoma, teratoma, thyroid lesions and lymphoma.

Question 4

Which of the following statements best defines forced vital capacity?

Accepted Answer

Forced vital capacity is a measurement of the volume of airflow expired with the patient blowing as hard and fast as possible.

Question 5

Which of the following cardiomyopathies shows enlarged balloon like heart and pulmonary congestion on a chest radiograph?

Accepted Answer

Dilated cardiomyopathy shows enlarged balloon like heart and pulmonary congestion on a chest radiograph.

Question 6

Which of the following DOES NOT contribute to the etiology of atrial fibrillation?

Accepted Answer

Common etiological factors in the development of atrial fibrillation include pulmonary disease, ischemia, rheumatic heart disease, anemia, atrial myxoma and thyrotoxicosis (hyperthyroidism).

Question 7

Irregularly irregular pulse is a typical clinical sign found commonly in which of the following cardiovascular conditions?

Accepted Answer

Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia, characterized by irregularly irregular ventricular pulse and loss of association between the cardiac apex beat and radial pulsation.

Question 8

Which of the following is NOT a side effect of beta channel blockers?

Accepted Answer

Hypertension is a condition beta blockers are usually prescribed for. Instead, beta blockers usually cause hypotension.

Question 9

Which of the following cells differentiates into osteoblasts that form bone for remodeling and repair?

Accepted Answer

Osteogenic cells are mesenchymal-like cells in the adult bone that differentiate into osteoblasts that form bone for remodeling and repair.

Question 10

The closing of which valves is responsible for producing the first heart sound?

Accepted Answer

The first heart sound is caused by the sudden blockage of reverse blood flow due to closure of the atrioventricular valves, i.e. mitral and tricuspid, at the beginning of ventricular contraction, or systole.

Question 11

Which of the following is the most sensitive test for the diagnosis of primary hypothyroidism?

Accepted Answer

While all of the above tests may be used while evaluating the diagnosis of primary hypothyroidism; the most sensitive test is based on determining TSH levels in the blood.

Question 12

Which of the following conditions describes periods of deep breathing alternating with periods of no breathing and can be caused by heart failure?

Accepted Answer

Kussmaul breathing is deep, forceful and rapid breathing caused by the stimulation of the respiratory center located in the medulla of the brain due to acidosis e.g. in diabetic ketoacidosis.

Question 13

Which of the following is NOT a characteristic of tetralogy of fallot?

Accepted Answer

Tetralogy of fallot has mainly a right to left shunt caused by right ventricular outflow obstruction. Blood ends up bypassing the pulmonary artery and goes to the aorta.

Question 14

What are the clinical features of esophageal achalasia?

Accepted Answer

A primary disorder of esophageal motility, esophageal achalasia typically presents with dysphagia for both solid and liquid foods.

Question 15

Which of the following is the causative organism for Rocky Mountain spotted fever?

Accepted Answer

Rickettsia rickettsii is the cause of Rocky Mountain spotted fever (RMSF) and is the prototype bacterium in the spotted fever group of rickettsiae. Rickettsia rickettsii is found in the Americas and is transmitted to humans through the bite of infected ticks.

Question 16

Which of the following statements is NOT true regarding Prinzmetal angina?

Accepted Answer

The symptoms of Prinzmetal angina typically occur at rest, rather than on exertion (thus attacks usually occur at night).

Question 17

Each of the following are signs/symptoms one would find in a patient with non-Hodgkin lymphoma EXCEPT:

Accepted Answer

Weight gain is not commonly seen in patients suffering from non-Hodgkin lymphoma.

Question 18

Each of the following, with regard to von Willebrand disease, is correct EXCEPT:

Accepted Answer

Von Willebrand disease is bleeding, and it functions independent of factor VIII.

Question 19

Which of the following is TRUE regarding vitamin K deficiency?

Accepted Answer

Vitamin K deficiency is caused by malabsorption of fat. This is commonly due to pancreatic and GI dysfunction.

Question 20

Which of the following bacteria is a grampositive cocci which commonly causes skin infection and abscess formation?

Accepted Answer

Staphylococcus aureus is a gram-positive coccus which causes abscess formation, gastroenteritis, endocarditis, toxic shock syndrome, and scalded skin syndrome.

Quiz 1: Physician Assistant