Bio 669 Quiz 4 (Cardiovascular) with
Complete Solutions
Which of the following conditions is the most immediately at risk for serious
complications? - ANSWER-STEMI
Thromboangitis Obliterans (Buerger's disease) is an autoimmune condition that is: -
ANSWER-Strongly associated with smoking
Which of the following is not a systemic disease that is associated with Raynaud's
phenomenon? - ANSWER-Congestive heart failure
Rheumatic fever and, and subsequent heart complications in 10% of individuals is left
untreated arises from: - ANSWER-Group A beta-hemolytic strep pharyngitis
Which of the following is not a primary factor in determining preload? - ANSWER-Total
peripheral (systemic) resistance
Which of the following statements is incorrect? - ANSWER-Prostacyclins, which are
diminished by NSAIDs, are vasoconstrictors
Which of the following is incorrect regarding the isometric contraction phase of the
cardiac cycle? - ANSWER-The atria are contracting
The resistance of movement of blood from the left ventricle to the aorta is termed the: -
ANSWER-afterload
Natriuretic peptides act by: - ANSWER-Stimulate the release of Na+ (thus increases
urine volume) from the kidneys
The doubled layer serous membrane surrounding the heart that functions to minimize
friction from the heart movement is the: - ANSWER-Pericardium
Prinzmetal angina is - ANSWER-A transient ischemia of the myocardium that occurs
unpredictably
Progressive venous distention of the head and upper extremities resulting from growth
of a cancerous tumor on the right mainstem bronchus is best described clinically as: -
ANSWER-Superior vena cava syndrome
The most common cause of aneurysm is: - ANSWER-Atherosclerosis with hypertension
, An atherosclerotic area that has ruptured is termed - ANSWER-Complicated plaque
The PR interval represents the time from: - ANSWER-The onset of atrial systole to the
onset of ventricular systole
The circumflex artery off of the left coronary artery - ANSWER-left atrium and ventricle
The structure that connect the leaflet/cusps and help to prevent prolapse of the AV
valves is the - ANSWER-Chordae tendinae and papillary muscles
A mitral valve prolapse would be heard during - ANSWER-ventricular systole
Hypertensive crisis (malignant hypertension) is best defined as: - ANSWER-Rapidly
progressive hypertension with a diastolic pressure of 140 mmHg or more
intermittent claudication is - ANSWER-A sign of peripheral artery disease
A patient presents with fever, diffuse microemboli presenting as petechial lesions,
painful lesions on the fingertips and what looks like non-tender bruising on both hands is
most indicative of which disease process? - ANSWER-Infective endocarditis
Stroke volume: - ANSWER-None of the above are true
T wave relates to _______ and shortly precedes the closure of the ______ valves -
ANSWER-Ventricular repolarization; SL
How much of the oxygen carried by hemoglobin in the blood is actually transferred to
the myocardium? - ANSWER-70-75%
The key regulator determining if a muscle, such as cardiac muscle, contracts or not is
the presence of: - ANSWER-Ca++
Myocardial hibernation is best described as: - ANSWER-Myocardial cells that are
persistently ischemic and undergo metabolic adaptation to prolong survival
A thrombus is a blood clot that remains attached to a vessel wall. Which of the following
is not one of the main factors as proposed by Virchow? - ANSWER-Obesity
A 12-year-old boy presenting with complaints of fever, pink macular rash on the trunk
and finding of diastolic murmur on the exam should be investigated for possible: -
ANSWER-Rheumatic fever
The decreased or inability to generate action potential due to hyperpolarization or
continued closure of inactivation gates is termed: - ANSWER-Refractory period
Complete Solutions
Which of the following conditions is the most immediately at risk for serious
complications? - ANSWER-STEMI
Thromboangitis Obliterans (Buerger's disease) is an autoimmune condition that is: -
ANSWER-Strongly associated with smoking
Which of the following is not a systemic disease that is associated with Raynaud's
phenomenon? - ANSWER-Congestive heart failure
Rheumatic fever and, and subsequent heart complications in 10% of individuals is left
untreated arises from: - ANSWER-Group A beta-hemolytic strep pharyngitis
Which of the following is not a primary factor in determining preload? - ANSWER-Total
peripheral (systemic) resistance
Which of the following statements is incorrect? - ANSWER-Prostacyclins, which are
diminished by NSAIDs, are vasoconstrictors
Which of the following is incorrect regarding the isometric contraction phase of the
cardiac cycle? - ANSWER-The atria are contracting
The resistance of movement of blood from the left ventricle to the aorta is termed the: -
ANSWER-afterload
Natriuretic peptides act by: - ANSWER-Stimulate the release of Na+ (thus increases
urine volume) from the kidneys
The doubled layer serous membrane surrounding the heart that functions to minimize
friction from the heart movement is the: - ANSWER-Pericardium
Prinzmetal angina is - ANSWER-A transient ischemia of the myocardium that occurs
unpredictably
Progressive venous distention of the head and upper extremities resulting from growth
of a cancerous tumor on the right mainstem bronchus is best described clinically as: -
ANSWER-Superior vena cava syndrome
The most common cause of aneurysm is: - ANSWER-Atherosclerosis with hypertension
, An atherosclerotic area that has ruptured is termed - ANSWER-Complicated plaque
The PR interval represents the time from: - ANSWER-The onset of atrial systole to the
onset of ventricular systole
The circumflex artery off of the left coronary artery - ANSWER-left atrium and ventricle
The structure that connect the leaflet/cusps and help to prevent prolapse of the AV
valves is the - ANSWER-Chordae tendinae and papillary muscles
A mitral valve prolapse would be heard during - ANSWER-ventricular systole
Hypertensive crisis (malignant hypertension) is best defined as: - ANSWER-Rapidly
progressive hypertension with a diastolic pressure of 140 mmHg or more
intermittent claudication is - ANSWER-A sign of peripheral artery disease
A patient presents with fever, diffuse microemboli presenting as petechial lesions,
painful lesions on the fingertips and what looks like non-tender bruising on both hands is
most indicative of which disease process? - ANSWER-Infective endocarditis
Stroke volume: - ANSWER-None of the above are true
T wave relates to _______ and shortly precedes the closure of the ______ valves -
ANSWER-Ventricular repolarization; SL
How much of the oxygen carried by hemoglobin in the blood is actually transferred to
the myocardium? - ANSWER-70-75%
The key regulator determining if a muscle, such as cardiac muscle, contracts or not is
the presence of: - ANSWER-Ca++
Myocardial hibernation is best described as: - ANSWER-Myocardial cells that are
persistently ischemic and undergo metabolic adaptation to prolong survival
A thrombus is a blood clot that remains attached to a vessel wall. Which of the following
is not one of the main factors as proposed by Virchow? - ANSWER-Obesity
A 12-year-old boy presenting with complaints of fever, pink macular rash on the trunk
and finding of diastolic murmur on the exam should be investigated for possible: -
ANSWER-Rheumatic fever
The decreased or inability to generate action potential due to hyperpolarization or
continued closure of inactivation gates is termed: - ANSWER-Refractory period
