Cardiovascular System Function & Dysfunction Flashcards
A client has a tricuspid valve disorder. Between which of the following chambers will the blood flow be impaired?
a. Vena cava and right atrium
b. Left atrium and left ventricle
c. right atrium and right ventricle
d. right ventricle and pulmonary artery
c. right atrium and right ventricle
A client has a severe blockage in his right coronary artery. Which cardiac structures are most likely to be affected by this blockage? (Select all that apply)
a. atrioventricular node
b. left ventricle
c. coronary sinus
d. right ventricle
e. pulmonic valve
a. atrioventricular node
b. left ventricle
d. right ventricle
Where is the conduction impairment when the Purkinje system is damaged?
a. atria
b. atrioventricular node
c. ventricles
d. bundle of HIS
c. ventricles
What is the difference between an artery and a vein?
a. Arteries are thin walled with the capacity to hold large quantities of blood
b. Arteries are where cellular nutrients are exchanged
c. Veins mainly carry oxygenated blood and have rigid walls
d. Veins are thin walled and contain valves for unidirectional blood flow
b. Arteries are where cellular nutrients are exchanged
When a person’s blood pressure rises, which compensatory homeostatic mechanism is stimulated?
a. Chemoreceptors that inhibit the sympathetic nervous system, causing vasodilation
b. Baroreceptors that inhibit the parasympathetic nervous system, causing vasodilation
c. Baroreceptors that inhibit the sympathetic nervous system, causing a decrease in heart rate
d. Chemoreceptors that stimulate the sympathetic nervous system, causing an increase in heart rate
c. Baroreceptors that inhibit the sympathetic nervous system, causing a decrease in heart rate
If a client’s capillary refill assessment shows that the colour is greater than 3 seconds, what does this indicate?
a. a normal response
b. thrombus formation in the veins
c. lymphatic obstruction of venous return
d. impaired arterial flow to the extremities
b. thrombus formation in the veins
When a palpable precordial thrill is found on assessment, what could this indicate?
a. heart murmurs
b. gallop rhythms
c. pulmonary edema
d. right ventricular hypertrophy
a. heart murmurs
Which of the following may be found on assessment of a 79 year old client?
a. A narrowed pulse pressure
b. diminished carotid pulses
c. difficulty isolating the apical pulse
d. An increased heart rate in response to stress
c. difficulty isolating the apical pulse
Which of the following statements best describe the P-wave impulse?
a. arising at the sinoatrial node and repolarizing the atria
b. arising at the sinoatrial node and depolarizing the atria
c. Arising at the atrioventricular node and depolarizing the atria
d. Arising at the atrioventricular node and spreading to the bundle of HIS
b. arising at the sinoatrial node and depolarizing the atria
