PATHO370 WCU -
Pathophysiology CORRECT 100%
Which term is determined by stroke volume, speed of ejection, and arterial
distensibility?
Arterial pulse pressure
Mean arterial pressure
Diastolic pressure
Pulse pressure - ANSWERPulse pressure
What stimulates the release of renin? (Select all that apply.)
Increased heart rate
Renal hypoperfusion
Sympathetic activation
Parasympathetic activation
Decreased sodium delivery - ANSWERRenal hypoperfusion
Sympathetic activation
Decreased sodium delivery
Which receptor is responsible for innervation of the arterioles?
β-1
β-2
α-1
α-2 - ANSWERα-1
For the patient in hypovolemic shock, what compensatory mechanism will help preserve
adequate circulation?
Increased activity of the parasympathetic nervous system.
,Decreased secretion of antidiuretic hormone (ADH).
The renin-angiotensin-aldosterone cascade.
Vasodilation - ANSWERThe renin-angiotensin-aldosterone cascade
What is the marker of choice for detecting a myocardial infarction?
Elevated T waves on an ECG
Elevated serum levels of C-MB
Elevated serum levels of cardiac myogoblin
Elevated serum levels of cardiac troponin - ANSWERElevated serum levels of cardiac
troponin
Which clinical manifestation differentiates myocardial infarction (MI) from angina
pectoris? (Select all that apply.)
Radiating chest pain
Chest pain initiated by exercise
ST-segment changes on the ECG
Elevated serum levels of troponin
Chest pain aggravated by coughing - ANSWERRadiating chest pain
ST-segment changes on the ECG
Elevated serum levels of troponin
The primary cause of sudden cardiac death is usually due to
Heart failure
Cardiomyopathy
Atherosclerotic plaques
Ventricular dysrhythmia - ANSWERVentricular dysrhythmia
Early compensation for hypovolemic shock includes
Decreased heart rate
, Decreased systemic vascular resistance
Release of epinephrine from adrenal glands
Shunting of blood from the brain to the extremities - ANSWERRelease of epinephrine
from adrenal glands
Tetralogy of Fallot is characterized by which of the following? (Select all that apply.)
A ventricular septal defect
Right ventricular hypertrophy
Transposition of the great arteries
Obstructed right ventricular outflow
An aorta positioned above the ventricular septal opening - ANSWERA ventricular septal
defect
Right ventricular hypertrophy
Obstructed right ventricular outflow
An aorta positioned above the ventricular septal opening
Which left atrial pressure readings indicates a risk of increased capillary filtration that
results in the clinical manifestations of pulmonary edema?
25 mm Hg
10 mm Hg
6 mm Hg
4 mm Hg - ANSWER25 mm Hg
Which is a major determinant of diastolic blood pressure?
Vascular resistance
Stroke volume
Preload
Heart rate - ANSWERVascular resistance
Pathophysiology CORRECT 100%
Which term is determined by stroke volume, speed of ejection, and arterial
distensibility?
Arterial pulse pressure
Mean arterial pressure
Diastolic pressure
Pulse pressure - ANSWERPulse pressure
What stimulates the release of renin? (Select all that apply.)
Increased heart rate
Renal hypoperfusion
Sympathetic activation
Parasympathetic activation
Decreased sodium delivery - ANSWERRenal hypoperfusion
Sympathetic activation
Decreased sodium delivery
Which receptor is responsible for innervation of the arterioles?
β-1
β-2
α-1
α-2 - ANSWERα-1
For the patient in hypovolemic shock, what compensatory mechanism will help preserve
adequate circulation?
Increased activity of the parasympathetic nervous system.
,Decreased secretion of antidiuretic hormone (ADH).
The renin-angiotensin-aldosterone cascade.
Vasodilation - ANSWERThe renin-angiotensin-aldosterone cascade
What is the marker of choice for detecting a myocardial infarction?
Elevated T waves on an ECG
Elevated serum levels of C-MB
Elevated serum levels of cardiac myogoblin
Elevated serum levels of cardiac troponin - ANSWERElevated serum levels of cardiac
troponin
Which clinical manifestation differentiates myocardial infarction (MI) from angina
pectoris? (Select all that apply.)
Radiating chest pain
Chest pain initiated by exercise
ST-segment changes on the ECG
Elevated serum levels of troponin
Chest pain aggravated by coughing - ANSWERRadiating chest pain
ST-segment changes on the ECG
Elevated serum levels of troponin
The primary cause of sudden cardiac death is usually due to
Heart failure
Cardiomyopathy
Atherosclerotic plaques
Ventricular dysrhythmia - ANSWERVentricular dysrhythmia
Early compensation for hypovolemic shock includes
Decreased heart rate
, Decreased systemic vascular resistance
Release of epinephrine from adrenal glands
Shunting of blood from the brain to the extremities - ANSWERRelease of epinephrine
from adrenal glands
Tetralogy of Fallot is characterized by which of the following? (Select all that apply.)
A ventricular septal defect
Right ventricular hypertrophy
Transposition of the great arteries
Obstructed right ventricular outflow
An aorta positioned above the ventricular septal opening - ANSWERA ventricular septal
defect
Right ventricular hypertrophy
Obstructed right ventricular outflow
An aorta positioned above the ventricular septal opening
Which left atrial pressure readings indicates a risk of increased capillary filtration that
results in the clinical manifestations of pulmonary edema?
25 mm Hg
10 mm Hg
6 mm Hg
4 mm Hg - ANSWER25 mm Hg
Which is a major determinant of diastolic blood pressure?
Vascular resistance
Stroke volume
Preload
Heart rate - ANSWERVascular resistance
